GCSE Python Programming 1 - Introduction

Summary

This video lecture series introduces Python programming, tailored for GCSE students. It explains the basics of programming languages, emphasizing Python's simplicity and readability. The series covers key programming concepts like syntax, sequencing, selection, and iteration, and demonstrates Python's popularity and practical applications. Viewers are guided through setting up Python's IDE, writing simple programs, and understanding common errors. The lecture encourages experimentation and learning from mistakes, offering interactive examples and extension exercises to deepen comprehension.

Takeaways

• 😀 Programming languages are sets of vocabulary and grammatical rules that instruct computers to perform tasks.
• 🔍 High-level languages like Python are more human-readable and are compiled into machine code that computers execute.
• 🌐 Python is a versatile, high-level programming language known for its simplicity and readability, making it ideal for beginners and experienced programmers alike.
• 📈 Python's popularity has been increasing, as evidenced by web searches and its prevalence on platforms like Stack Overflow.
• 💻 An Integrated Development Environment (IDE) like IDLE, which comes with Python, facilitates easier programming with features like color coding and a shell mode.
• 🛠 Basic programming concepts include sequencing, selection, and iteration, which are fundamental to all programming languages.
• 🔢 Python emphasizes code readability and allows for expressing complex ideas in fewer lines of code compared to other languages like C.
• 📝 Syntax is crucial in programming; even minor mistakes can lead to errors, which are common even among experienced programmers.
• 🔑 Keywords in Python, like 'print', are special words that the language understands and are highlighted in the IDE to help identify errors.
• 📚 Learning to spot and correct syntax errors is an essential skill for programmers, and IDEs like IDLE provide tools to assist with this.
• 🎓 The script encourages experimentation and learning through trial and error, emphasizing the importance of practice in programming.

Q & A

What is the main focus of the video series?

The main focus of the video series is to teach Python programming, specifically tailored for those studying the GCSE exam syllabus.

Why is Python used in this series instead of other programming languages?

Python is used because of its simplicity, readability, and the fact that it allows programmers to express complex concepts in fewer lines of code compared to languages like C.

What is a programming language in the context of this script?

A programming language is a vocabulary and set of grammatical rules for instructing a computer to perform specific tasks.

How does the script describe the evolution of programming languages?

The script describes the evolution from early computers performing basic mathematical operations to the development of high-level and low-level programming languages that can be easily converted into machine code.

What is the significance of decomposition in programming as mentioned in the script?

Decomposition is the process of breaking down a large complex task into smaller subtasks, which are easier to solve and can be combined to solve the larger problem.

What are the three key programming concepts that every programming language involves?

The three key programming concepts are sequencing (putting instructions in order), selection (making choices based on conditions), and iteration (repeating tasks multiple times).

Why is Python considered a beginner-friendly language according to the script?

Python is considered beginner-friendly due to its simple syntax, readability, and the fact that it allows for clear programming constructs on both small and large scales.

What is the role of an IDE in programming with Python?

An IDE (Integrated Development Environment) like IDLE, which comes with Python, provides a user-friendly interface and tools to make programming more pleasant and simpler.

How does the script illustrate the concept of input and output in Python?

The script uses the 'input' function to gather information from the user and the 'print' function to display output, demonstrating basic interaction within a Python program.

What is a syntax error and why are they common in programming?

A syntax error occurs when the code does not follow the correct grammatical structure that the programming language understands. They are common because even small mistakes can cause the program not to run, and computers require exact instructions.

How does the script suggest handling syntax errors in Python?

The script suggests checking the code carefully for common mistakes like incorrect brackets, missing speech marks, or incorrect keyword spelling. It also mentions using color coding in the IDE to spot potential errors.

What are some additional Python programs suggested in the script for further practice?

The script suggests creating programs to calculate the area of a triangle using the formula, and another to calculate how many days a user has been alive based on their age.

Outlines

00:00

🐍 Introduction to Python Programming

This paragraph introduces the series on Python programming aimed at GCSE students. It explains the concept of programming languages, their purpose, and the specific use of Python for this series. The speaker emphasizes the importance of understanding syntax and programming constructs like sequencing, selection, and iteration. The paragraph also touches on the history of programming and the evolution of computer languages, highlighting Python's simplicity and readability as advantages for beginners.

05:03

📈 Python's Popularity and IDEs

The speaker discusses the popularity of Python, citing data from The Economist and Stack Overflow, showing Python's rise in web searches and its status as the most popular language on Stack Overflow. The paragraph also introduces the concept of an Integrated Development Environment (IDE), specifically Python's IDLE, which is the default IDE that comes with Python. The speaker guides the audience on how to use IDLE, configure it for writing full programs, and the importance of experimenting with code.

10:06

👋 Writing a Simple 'Hello World' Program

The paragraph demonstrates how to write a basic 'Hello World' program in Python using IDLE. It explains the process of opening a new window, typing the program, saving it, and running it. The speaker also discusses the importance of syntax, such as using the correct keywords, brackets, and quotation marks. The paragraph encourages learners to experiment by changing the text and adding more print statements to see how the program behaves.

15:10

🔄 Interactive Python Programs and Syntax Errors

This section introduces the concept of interactive Python programs with the 'input' function, allowing users to enter data that the program can use. The speaker provides an example where the user's name is inputted and then printed out in a greeting. The paragraph also delves into syntax errors, explaining how even small mistakes can cause programs to fail and emphasizing the importance of careful typing and debugging.

20:11

🛠 Handling Syntax Errors and Writing More Complex Programs

The speaker provides guidance on how to identify and correct syntax errors, using color coding in IDLE as a tool. They also explain the importance of case sensitivity in programming. The paragraph includes an example of a more complex program that calculates the remaining calories a person can eat in a day, introducing the 'int' function to convert input into an integer for mathematical operations. The speaker encourages learners to try the program, make modifications, and understand the process of debugging.

📚 Extending Knowledge with Additional Python Programs

In the final paragraph, the speaker suggests extension programs for practice, such as calculating the area of a triangle and determining how many days a person has been alive. These exercises aim to deepen the understanding of Python programming by incorporating user input, mathematical operations, and print statements. The speaker reassures learners that it's normal to struggle with some concepts and encourages them to keep practicing and experimenting with Python.

Keywords

💡Programming Language

A programming language is a formal language comprising a vocabulary and set of grammatical rules that allow us to instruct a computer to perform specific tasks. In the video, it is the central theme as the instructor explains that programming languages act as a bridge between human-understandable instructions and the binary code (ones and zeros) that computers execute. Examples include Python, C, C++, and JavaScript, with Python being the focus of the video due to its readability and ease of use for beginners.

💡Python

Python is a high-level, general-purpose programming language that is known for its simplicity and readability. The video emphasizes Python's design philosophy which prioritizes code readability and its syntax that allows for expressing complex ideas concisely. It is used as the teaching language in the video because of its popularity and suitability for beginners, as well as its wide range of applications from web development to scripting.

💡Syntax

Syntax in programming refers to the set of rules that dictate how instructions, statements, and expressions are formed in a language. The video explains the importance of syntax in programming with Python, noting that correct syntax is crucial for the computer to understand and execute the code. Examples from the script include the proper use of keywords, brackets, and quotation marks.

💡IDE (Integrated Development Environment)

An Integrated Development Environment, or IDE, is a software application that provides comprehensive facilities for coding, debugging, and running programs. In the video, the instructor introduces IDLE, which is Python's standard IDE, as a tool to make programming more user-friendly by providing a space to write, save, and run Python programs.

💡Variables

A variable in programming is a storage location paired with an associated symbolic name, which contains some known or unknown quantity of information referred to as a value. The video introduces the concept of variables with the example of storing user input in a variable named 'name' and later using it in a print statement.

💡Input and Output

Input and output are fundamental concepts in programming where 'input' refers to the way data is entered into a program, and 'output' is how the results of computations are displayed or utilized. The video demonstrates input with the 'input()' function in Python, which allows the program to receive data from the user, and output with the 'print' statement, which displays data on the screen.

💡Conditional Execution

Conditional execution is the concept of making decisions within a program based on certain conditions. The video touches on this concept by explaining that programs can execute different blocks of code depending on whether certain conditions are met, such as checking if a password is correct or if a user is above a certain age.

💡Iteration

Iteration in programming is the process of repeating a set of instructions multiple times. The video mentions iteration as a key concept in programming, where tasks can be repeated by the computer, emphasizing its importance in performing repetitive tasks efficiently.

💡Decomposition

Decomposition is a problem-solving technique where a large, complex task is broken down into smaller, more manageable subtasks. The video describes programming as a process of decomposition, where the big problem is divided into simple programming steps that the computer can follow to solve the overall problem.

💡Syntax Error

A syntax error occurs when a programmer makes a mistake in the structure of the code, such as incorrect use of keywords, missing brackets, or wrong punctuation. The video explains the concept of syntax errors and emphasizes the importance of careful coding to avoid them, using examples from the script where missing quotation marks or incorrect use of an equals sign cause errors.

💡Case Sensitivity

Case sensitivity in programming refers to the programming language's ability to distinguish between letters of different cases (upper and lower). The video points out that Python is a case-sensitive language, meaning that 'print' and 'PRINT' are treated as different keywords, and using the wrong case will result in a syntax error.

Highlights

Introduction to a series of video lectures on learning Python programming aimed at GCSE exam syllabus students.

Explanation of various computer languages with a focus on Python for its ease of use and readability.

Definition of a programming language as a set of vocabulary and grammatical rules for instructing computers.

Overview of the layers of programming, from hardware to high-level languages.

Introduction to key programming concepts such as sequencing, selection, and iteration.

Discussion on the importance of syntax in programming and how it differs from human languages.

Explanation of basic programming instructions including input, output, and mathematical operations.

Introduction to Python as a powerful, high-level programming language with various uses.

Python's design philosophy that emphasizes simplicity and code readability.

Popularity of Python based on web searches and its rise in recent years.

Use of an IDE (Integrated Development Environment) for Python programming, specifically IDLE.

Demonstration of writing and running a simple Python program using IDLE.

Importance of syntax in Python, including correct use of keywords, brackets, and quotation marks.

The interactive nature of Python programs demonstrated with user input and output.

Explanation of syntax errors and the importance of careful typing in programming.

Use of color coding in IDLE to help identify syntax errors.

Guidance on how to approach debugging and fixing syntax errors in Python.

Extension exercises suggested for practice, including calculating the area of a triangle and days alive based on age.

Transcripts

[Music]

hello and welcome to another series of

video lectures this series is going to

be about learning Python programming and

it's aimed at people studying the GCSE

exam syllabus so there are lots of

different computer languages out there

there are some examples here the one

we're particularly going to use is

called Python and I'll explain why are

using it later on but of course there's

many other really good programming

languages that can be used

so really today's but understanding what

a programming language is how to go

about starting to write programs in

Python and starting to think about

things like the syntax and how we

construct statements the Python can

understand so Python is a programming

language what is a programming language

well it's a vocabulary and set of

grammatical rules for instructing

computer to perform a specific task so

if you have a look at this little

diagram here we can see that down the

bottom we've got the actual physical

hardware that's inside your computer all

those transistors and circuit gates and

things like that and then we've got that

you know how do we talk to a computer

well computers understand ones and zeros

but humans aren't very good

understanding ones and zeros so we've

built lots of different types of

programming language on top of this that

we can understand but that can be

converted into machine language machine

code ones and zeros very easily for the

computer to understand so the ones at

the top what we call the high-level

languages and then towards the bottom

we've got things like assembly which is

a low-level language that you will

practice a little bit maybe at a level

depending on which exam syllabus you're

following so the term programming

language usually refers to the

high-level programs and there's a big

example here some of the more famous

ones might be C C++ C sharp you've got

things like jab

you've got things like JavaScript as

well lots of different types of language

each language has a unique set of

keywords so words that it can understand

and a special syntax basically grammar

rules for organizing program

instructions a program is just a

sequence of instructions that specifies

how to perform a computation and this

might be something mathematical for

example solving equations or it might be

searching replacing text in a document

early computers in the 1940s and 50s

what we usually just carrying out basic

mathematical operations they could just

do it a lot faster than people we can

describe programming as the process of

breaking a large complex task into

smaller and smaller subtasks and these

the ones we design a solution to and

they work together to solve the big

problem and when we divide big problems

into small problems there's a special

name for that and it's called

decomposition I'll often talk about

decomposing problems dividing them two

simple programming steps that we can

make and that the computer can follow

and complete a big problem all right so

there are key ideas in every programming

language and the key idea is that we're

going to look at first of all our

sequencing putting instructions in the

correct order selection the computer can

choose different options depending on

conditions present in your program and

iteration tasks can be repeated multiple

times by the computer so it doesn't

matter which programming language you're

looking at it's always going to involve

sequencing selection and iteration put

everything in the right order let the

computer make choices depending on

conditions and repeat steps that have to

be done many times computers are really

good at doing that to this end there are

some basic instructions that will appear

in every programming language you're

always going to have input

it's always gonna be some way to get

data into your program you can have

output you've got to be able to show the

result of these computations maths

computers are great at maths there's

always a way to perform mathematical

operations conditional execution is it

the right password or the wrong password

is it somebody under the age of 15 is it

somebody over the age of 15 do different

things in different circumstances

this is conditions and as I say we're

always gonna have a lot of repetition

computers perform the same tasks many

many times they're very good at doing

that so bringing us on to Python Python

I think at the time of recording 3.7 is

the latest addition

but generally any version 3 would be

fine for this Python is a powerful

programming language it's a high-level

language and it can be has lots of

different uses it says web development

here but it's a great scripting language

you can do lots of things with Python

it's design philosophy emphasizes

simplicity and code readability and it's

syntax allows programmers to express

concepts in fewer lines of code than

would be possible in languages such as C

so really it's simple to use it's

readable it's got a syntax that allows

you to write quite complex programs

quite quickly and easily it's a great

beginner language the language provides

the constructs intended to enable clear

programs and both a small on a large

scale so you can do quick simple

programs you can do quite advanced

programs with it it's free it's open

source I've got a community-based

development model so you can find it on

many different systems all right Python

is really great language for learning

programming but it's also useful if

you're a more advanced programmer as

well it's very popular so you look here

at some evidence why do I say it's

popular this is these are some graphs by

The Economist magazine based on web

searches for different

gramming languages so you can see the

worldwide here python is the fourth most

popular language worldwide and you can

see that has gone up a lot in popularity

in recent years and if you just look in

America it's actually the most popular

programming language based on web

searches recently overtaking Java this

is another graph this is from Stack

Overflow based on question views in

World Bank high-income countries if you

don't know what Stack Overflow is you'll

learn Stack Overflow is a website where

people discuss programming questions and

issues so if you're not sure how to do

something in Python and you go to a

Google search and you type in Python how

do I do

blankety-blank most of the search

results come back will probably be from

Stack Overflow but you can see here very

recently Python has become the most

popular language on that web site

overtaking other language such as

JavaScript and Java of course all the

languages on this list are really good

Java Script is great Java's great Chavez

what I study when I was at university

good language c-sharp is really useful

you got C++ which is really powerful PHP

is used a lot of web development

materials and they're all good languages

we're just taking Python it's nice easy

to learn language and it's very useful

and very popular so to program in Python

we like to use some special software

what we call an IDE integrated

development environment and this is just

software that allows us to program

easily that gives us some tools to make

it a bit more pleasant a little bit more

simpler to use you could use any text

editor really you could write it almost

directly into your command line but

using a special piece of software just

makes it a bit more user friendly there

are lots of these IDs available that you

can use with Python we're going to use a

special one called

idle and this is the one that comes with

Python a standard so if you download the

Python programming language onto your

computer it will come with idle so it's

not the most power

IDE doesn't have the greatest range of

features but it's free it comes with a

programming language and that's the one

we're going to be using if you want to

use a different ID that's fine you just

the screenshots and things will look a

little bit different okay

so when you first open Python idle the I

kind of look something like this often

it starts in what we call shell mode and

this allows you to write programs one at

a time you write one command you press

ENTER it runs it you're type in the next

command it runs it but this is not

really what we want we want to write the

whole program and run it in one go so

you might need to reconfigure it to do

that go to options go to configure idle

if you want to you can change things

like font and size but really I'd like

you to go to the general tab and then

select open edit window close it reopen

it and that will give you something it

looks like this and means you can just

type all your program in one go save it

run it all right let's look at a very

simple program print hello so open up

the window type it in press f5 it'll ask

you to save it save it in somewhere

where you know where it's gonna be give

it a sensible name like hello or first

program and run it what's gonna happen

it's gonna open up the shell window it's

gonna run it and it's just gonna display

the word hello very simple

congratulations you're a programmer if

you can do lots of instructions like

that together you're gonna write really

nice complicated programs they're gonna

be a lot of fun so what should you do

now change it change the text change

your own message maybe add another print

line for example print good bye okay my

handwriting is really bad that looks a

bit small and then run it see what

happens when you have two lines well

doing programming you've got to

experiment play with it

see what you can get to happen try and

break it see what happens if you make a

mistake it's all about experimentation

but if you look at that very simple

first line here you can already see some

some features that you need to know

about we've got a keyword here that's

print this is a special word that the

computer understands Python Idol makes

it display in purple so we know that

it's a keyword so if you type in a

keyword it'll come up in purple if it

doesn't maybe you've made a mistake so

we have brackets around what we want to

print brackets are important make sure

you open and close them and then we've

got some text hello because it's text

we're going to put it in inverted commas

speech marks and that's how we always do

text it's always in speech marks and it

will display in green so you know that

it's text if you write some text and

it's not green you probably forgot one

of the inverted commas either at the

beginning of the end or both so again

make sure you get the right syntax is

very important and I'll discuss that

again a little bit later so once you've

done that it's a good idea to kind of

rearrange your windows just to make

programming easier what I like to do and

what I teach my students is that we have

the editor on one side and we have the

shell in the other so we can type a code

save it run it and it'll display what's

happening over here and that just makes

it easy to kind of see them both

together especially if you've got any

errors it's easy to try and do some bug

hunting and fix those mistakes sure I

have to do this I just think it makes it

easier so in the shell window which is

this one over here you can type things

in directly like basic math or you can

type in programming instructions one at

a time but generally we don't want to do

that we're going to write them in the

editor so that we can save them and use

them later

all right let's try something a little

bit different something it's more

interactive

I'd like you to type this in save it run

it again give it a sensible name before

you run it it's always a good idea to

think what's gonna happen when I run

this program what's what's gonna do name

equals input what is your name

print hello comma name okay what's

happening here all right well we've got

some text here so it's gonna display

what is your name

question mark and the keyword is input

what does input do

well maybe it's sending information into

the computer okay and where is it

sending that into the computer well

maybe we've created this thing called

name technically it's called a variable

but we'll look at that later and we're

gonna whatever they type in we're going

to store it under name and the next line

we're going to print out some text which

is a low and then common name so maybe

whatever the user is typed in here that

was stored in here is now going to get

printed out it's going to be output hmm

all right that's what I think it's gonna

happen

so I'm gonna run it and I'm gonna see

and check so again

programming is all about experimentation

you just have to try and guess what

things are gonna do have a think about

it run it see if that's what really

happens if not think about why so again

maybe save it as hello dot P wire or

something similar again you can press f5

to run it and something like this should

happen so we've got the text what is

your name the user type something in Bob

mcbomb

not my real name by the way and it

prints out hello Bob body Bobby my body

and Dottie okay I can't speak at the

moment but whatever the user types in

here is what gets printed out here run

it two or three times change the name

and you'll see it'll keep printing out

different things okay this is a good

time to talk about syntax errors so

unless you are some

sort of superhero with magical powers

it's very difficult to type in programs

without making a mistake even

experienced programmers when working on

programs even more than 10 or 15 lines

of code tend to make little mistakes and

these produces what we call a syntax

error

Computers are very literal they do

exactly what you tell them they can't

guess so if you make a very slight

mistake they're not going to understand

it and you're going to get some sort of

error message and that's not the

computer being mean to you it's just the

computer saying I'm sorry I don't

understand could you say that again okay

so things like the colons the brackets

speech marks of post Rafi spelling of

key words it's got to be perfect it's

not like if you're writing an English

essay and you forget a capital letter or

you forget a comma you might not get

such a good grade but everybody still

understands it

programming is just not going to work so

you've got to make sure you very careful

with how you type things in so although

we understand it if you make a minor

mistake the computer will not understand

it and you're gonna have to check it and

fix it and run it again but don't worry

about that everybody makes mistakes I

make silly errors all the time it's ok

so an IDE like Python Idol has different

ways of trying to help you understand if

you've made a mistake

one simple feature that Idol uses is

color coding so I've already mentioned

that things like the keywords will be in

purple so if you type in for example

print instead of print it's probably not

going to appear in purple because that's

not a keyword so you can see straight

away that it's wrong in the same way the

text should appear in green in Python

Idol so if you write some text that you

want printed out exactly and it's not

green in the editor window that's

probably because you made a mistake with

your inverted commas your speech marks

so again you can kind of tell if you've

made a mistake as

you're typing it more powerful IEDs have

even better ways of detecting and

showing you that you've made an error

but idle is quite simple but color

coding is still a good feature so again

we've got to use the correct syntax

print hello works

however print hello or print hello here

this one's got no brackets no speech

marks this one doesn't have the speech

marks neither of these will run you'll

get an error it's also case sensitive

especially for things like keywords

print hello works but print PRI and T

capital letters will produce a mistake

an error message of some kind okay so

that works this doesn't so be careful

you need to learn to be able to spot and

correct common syntax errors if you're

doing this at home then you've got to do

all this yourself if you're doing it in

the class you've got a bit of help but

what I tell all my students is if you

get some sort of error message it's not

that the computer is broken you've

probably just made a mistake and it's

usually something really simple so check

your code carefully check it again maybe

check it a third time again it will

almost certainly be something very basic

that you've forgotten it's usually not a

big mistake usually something very small

if you're doing this in the computer lab

at school please ask the people on

either side of you ask some DS better

programming to take a look at it of

course you can ask your teacher but

please remember oh my pen seems to going

a bit funny there okay never mind

please remember your teacher is really

busy you're gonna have lots of students

in the class with questions make sure

you've done all these steps first before

you ask your teacher just to make sure

they can make most efficient use of

their time okay so here are some

examples of some syntax errors this is a

really basic one here you see it's a

mistake over here and it's coming up you

got a syntax error invalid syntax

and straightaway we can see that this

text is not in green that's because we

forgot our inverted commas so okay that

was our mistake I need to go back change

that run it again all right

I've run another program and I'm getting

a traceback error oh it doesn't even so

it doesn't even do what well it doesn't

run because there's a mistake so it's

started to try and run the program there

is a problem and it comes up the trace

back error which is saying help I don't

know what you're saying I don't

understand please say it again in a way

that I will understand and it tells you

which line of code the mistake is in and

then it tells you the line that the

mistake is in as well so name - input

what is your name oh well it's not a -

is it I meant to put an equals should be

an equals in there I just made a mistake

so there you go it's trying to be help

what tells me where the mistake is

gives me the line so I can go back and

fix it so that of course is an equals it

should be in there I can go back to my

main program change it run it it'll be

great all right let's try one more

program this one's a little bit more

complicated first of all take a look at

it what do you think is gonna happen

well tell me oh I can't hear you

obviously okay so we're going to print

our welcome

we think that's probably pretty simple

calories equals input how many calories

have you eaten today well we know what

input is it's when we want to send

information to the program we can type

it in it gets added to the program so

the question is how many calories have

you eaten today

okay we'll type in a number and then

that's going to be stored as calories

cows left equals 2,000 minus into

calories well we got the minus here so

this is probably gonna be some kind of

math 2,000 calories minus whatever the

user typed in earlier okay that's fine

why does it say int here oh that's a

plus a bit of a new one

okay come back to that in a second print

you can eat cows left more calories

today so it's going to print out this

text exactly and this text well that's

whatever the result of this calculation

is going to be so that's how I would try

and work out what it means step by step

that I've run it and just check that's

what really happens so we'll come back

to this where it says int and this is

because when we type something into the

computer for example at this stage the

computer always thinks that it's text

but now we want to do some math we can't

do math for text we have to tell the

computer hey this is an integer it's an

int in Python programming speak it's an

integer value it's a number so now you

can do math if you don't say int

calories it's gonna be a bit weird

because it's gonna be 2,000 minus text

and that doesn't really compute so we

run that yeah it says welcome how many

calories have you eaten today

I typed in 789 and it says you can eat

1211 more calories today so I'm gonna go

get a ton of ice cream so again try it

run it run it a few times any syntax

errors you know keep trying it again

here are some extension programs you can

try don't have to do these I'm not going

to put up the solutions but if you want

a bit of practice create a program that

will work out the area of any triangle

remembering the formula the area of a

triangle is 1/2 times the base times the

height so you'll need to ask the user to

type in two values the base and the

height to have two input statements

you'll need to do some maths so you'll

need to multiply the base and the height

together and then divide it by two or

multiply by 0.5 and print the result

next extension write a program to work

out how many days you've been alive for

so this program would ask the user to

type in

how many years old they are what their

ages and then it needs to take that

number and multiply it by 365 and print

the result so have a go at that if you

want if you can't quite get all that

working just now don't worry we will go

through some more complex programs in

the next lesson