Solving Addition Math Problems | Elementary Math

Summary

In this lesson, students learn about addition by solving a simple math problem using the Three Reads strategy. The problem involves Lilly, who starts with seven candies, and her mom adds two more. Through guided steps, the teacher helps students understand that combining these numbers results in a total of nine candies. The lesson emphasizes that addition is the operation of finding the sum by combining two or more numbers. Students are also encouraged to create their own word problems and solve them, reinforcing their understanding of the concept.

Takeaways

• 📖 Addition is the math operation of combining two or more numbers to find the sum.
• 🧐 The lesson uses the Three Reads strategy to solve a math problem.
• 🍬 Lilly starts with seven candies in the jar.
• 🤲 Mom puts two more candies in Lilly’s jar.
• ❓ The goal is to find out how many candies Lilly has in the jar altogether.
• 🤔 Students need to combine the seven candies and the two more to get the total.
• 🧮 Counting all the candies together results in a total of nine candies.
• 🔢 Another method is counting on from seven: 'Eight, nine'.
• ➕ The equation for the problem is seven plus two equals nine.
• 🏆 The lesson reinforces that addition increases the total amount, and students are encouraged to create their own word problems.

Q & A

What is the main topic of this lesson?

The main topic of this lesson is addition, which is an operation of combining two or more numbers to find the sum.

What is the vocabulary word introduced in the lesson?

The vocabulary word introduced is 'addition'.

What strategy is used to solve the addition problem in this lesson?

The 'Three Reads' strategy is used to solve the addition problem.

What is the math problem discussed in the lesson?

Lilly has seven candies in the jar. Her mom puts two more candies in the jar. The problem asks how many candies Lilly has in total.

What is the first step in solving the addition problem?

The first step is to think about the story, remembering that Lilly had some candies, and her mom added more.

What is the problem asking students to find out?

The problem asks students to find out how many candies Lilly has in the jar altogether.

How does the story explain the concept of addition?

The story explains that when Lilly’s mom puts more candies in the jar, the total number of candies increases, which represents the concept of addition.

What is the total number of candies in the jar after Lilly’s mom adds two more?

After Lilly’s mom adds two more candies, there are nine candies in total.

What does the lesson teach about counting on?

The lesson teaches that you can 'count on' from the starting number, seven, by adding the next numbers: 'Eight, nine'. This helps students quickly find the total.

How does the lesson define addition?

Addition is defined as the operation of combining two or more numbers to find the sum.

Outlines

00:00

🧠 Introduction to Addition

The video begins by introducing the concept of addition, which is defined as the operation of combining two or more numbers to find the sum. The teacher explains that today's lesson will focus on using the Three Reads strategy to solve an addition problem, involving a story about Lilly, who has seven candies, and her mom, who adds two more. The goal is to figure out how many candies Lilly has in total.

📖 First Read: Understanding the Story

In the first read, the teacher emphasizes thinking about the story details. The teacher encourages students to recall key elements: Lilly starts with some candies in the jar, and her mom adds more. Students are prompted to visualize and remember the important facts, preparing them to solve the problem.

🔍 Second Read: Focus on the Question

The second read focuses on understanding the math question: how many candies Lilly has in total after her mom adds more. The teacher asks students to concentrate on identifying what the problem is asking them to find, which is the total number of candies in the jar after the addition.

🧮 Third Read: Interpreting the Numbers

The final read encourages students to think about the numbers in the story. The teacher breaks down that Lilly had seven candies initially, and her mom added two more. The students are prompted to reflect on how to solve the problem by combining the numbers. The teacher explains that since more candies are being added, the total number will increase.

🍬 Counting the Candies

The teacher demonstrates counting the candies in Lilly's jar. First, they count the seven original candies, then show how to add the two candies from Lilly’s mom, counting up to nine. This visual representation helps students understand the addition process and how the total increases as more candies are added.

📊 Counting Strategies: Counting All vs Counting On

Two different counting strategies are introduced: counting all the candies and counting on from the starting number. The teacher first counts all nine candies one by one, then shows how to count on from seven, adding two more to reach nine. This demonstrates the equivalence of both methods in finding the total number of candies.

➕ Conclusion: Understanding Addition

In the conclusion, the teacher reinforces the lesson's key takeaway: addition is combining numbers to find the sum. Lilly's seven candies and the two added by her mom make nine in total. The students are encouraged to create their own word problems involving addition as a final activity.

Keywords

💡Addition

Addition is a mathematical operation of combining two or more numbers to find the sum. In the video, it is the main concept being taught, as the students learn to add two numbers—seven and two—to find the total number of candies in the jar. The process of addition helps determine how many candies Lilly has after her mom adds more.

💡Sum

The sum is the result of an addition operation. In the video, the sum refers to the total number of candies in the jar after adding Lilly's candies with the ones her mom gave her. The sum in this case is nine, which is derived from adding seven and two.

💡Three Reads Strategy

The Three Reads strategy is a method used to help students understand math problems by reading them three times, each with a different focus. In the video, this strategy is applied as the teacher reads the story three times—first to understand the context, then to focus on the question, and finally to interpret the numbers involved in the problem.

💡Candies

Candies serve as a tangible item in the word problem to illustrate addition. The candies represent the numbers involved in the addition problem, helping students visualize the operation. Lilly has seven candies, and when her mom adds two more, the total increases, making it easier to understand the concept of adding numbers.

💡Count On

Counting on is a strategy to solve addition problems by starting with one number and counting forward. In the video, after establishing that Lilly has seven candies, the teacher demonstrates how to 'count on' by adding two more, counting 'eight, nine' to arrive at the total of nine candies.

💡Math Story

A math story is a narrative used to present a mathematical concept in a real-world context. In the video, the story of Lilly and her candies is a math story that introduces the concept of addition. It provides a relatable scenario for students to understand how numbers combine to form a sum.

💡Increase

In the context of addition, 'increase' refers to the result of adding one number to another, causing the total to become larger. The video emphasizes this concept by showing that when Lilly’s mom adds candies, the total number of candies increases from seven to nine.

💡Combine

To combine means to join two or more quantities together. In the video, the process of combining Lilly's seven candies with the two candies her mom adds illustrates the core idea of addition—combining different quantities to find the total or sum.

💡Operation

An operation is a mathematical procedure like addition, subtraction, multiplication, or division. In the video, the operation in focus is addition, which involves combining numbers to get a sum. The teacher explains that adding two numbers is a mathematical operation that increases the total.

💡Word Problem

A word problem presents a math problem in the form of a real-life scenario, requiring students to extract the numbers and solve. In the video, the word problem revolves around Lilly and her candies, teaching students how to interpret a story to identify numbers and solve for the total.

Highlights

Introduction to solving addition math problems.

Introduction of the vocabulary word 'addition' and its definition.

Explanation of the Three Reads strategy to approach solving math problems.

Presentation of the story problem: Lilly has seven candies, and her mom adds two more.

The focus on recalling details of the story and its connection to the math problem.

Clarification of the math problem's question: finding how many candies Lilly has in total.

Reiteration of the math story for deeper understanding of what the numbers represent.

Discussion of how adding candies increases the total amount.

Illustration of combining seven candies and the two additional candies.

Reconfirmation of the process of counting the candies to reach the total.

Explanation of how counting on works: starting at seven and adding two more to reach nine.

Summary that seven plus two equals nine.

Conclusion that Lilly now has nine candies in total.

Introduction to the concept of addition as the operation of combining numbers to find the sum.

Encouragement for students to create their own word problems to practice addition.

Transcripts

Today, we will solve addition math problems.

Our vocabulary word for this lesson is addition. Addition

is an operation of combining two or more numbers to find the sum.

We will use the Three Reads strategy to solve the following addition math problem.

Lilly has seven candies in the jar.

Mom puts two more candies in the jar.

How many candies does Lilly have in the jar altogether?

Think about the story.

What are some things that you can remember?

I remember that Lilly has some candies in the jar

and her mom is putting some more candy there. Great.

Let's read the story again and focus on the question

that the math problem is asking.

Lilly has seven candies in the jar.

Mom puts two more candies in the jar.

How many candies does Lilly have in the jar altogether?

What is the question asking you to find out?

I need to find out how many candies are in the jar altogether.

Awesome job. Now let's read the math story

for the last time to think about what the numbers mean in the story.

Lilly has seven candies in the jar.

Mom puts two more candies in the jar.

How many candies does Lilly have in the jar altogether?

What do the numbers and the math story tell us?

Lilly had seven candies in the jar

at the beginning of the story, but her mom

put two more candies in the jar.

What do you think we need to do to find out how many candies

are in the jar altogether?

I think that if her mom is putting more candies in the jar,

Lilly will have more candies than what she started with.

Now I need to combine the seven candies and the two more that mom gave her.

That's right. Here's

the jar that Lilly has with the seven candies.

One, two, three,

four, five, six, seven.

What happens to the candies when Lilly's mom gives her two more?

Does Lilly have more candy or less candy?

Lilly has more candy.

That's right. Lilly has more candies

because when we add to something, the amount increases.

Let's represent the candies that mom puts in the jar. One, two.

Let's find out how many candies Lilly has now!

We can count all the candies in the jar now.

One, two, three, four,

five, six, seven, eight, nine.

There is another way we can count to find out how many candies are in the jar.

We can also count on.

We know that Lilly started with seven candies in the jar,

then her mom gave her two more.

Now we can count on from seven and say, "Eight, nine."

Seven, eight, nine.

Seven and two are the same as nine, or seven plus two equals nine.

We know now that Lilly has nine candies in the jar.

Today we learned that addition is the operation

of combining two or more numbers to find the sum.

Can you create a word problem on your own to solve it?

Great job, scholars.