ALGORITMA PEMROGRAMAN INFORMATIKA KELAS 8 (Eksplorasi Lanjutan ACRATCH)

Summary

In this lesson, Bu Anis teaches Informatics students how to use Scratch to create a simple basketball game while learning key programming concepts. The lesson covers control codes, input codes, and variables to manage user input and program flow. Students create sprites, customize their movements, and build a program that stores user names and updates a score when a sprite touches a basketball. The session concludes with an evaluation, encouraging students to complete a worksheet and reinforcing the use of variables and control structures in coding.

Takeaways

• 😀 The lesson focuses on programming algorithms in Scratch for 8th-grade Informatics students.
• 😀 The main goal is to teach students how to create programs that accept user input and store it in variables.
• 😀 The lesson builds upon knowledge learned in previous classes, specifically Scratch coding basics.
• 😀 Students will explore control codes, input codes, and variables in Scratch to enhance their programming skills.
• 😀 The first key task is to create a program where the user can input their name and display it in the game.
• 😀 The program also involves tracking the score of a basketball game, where points increase when a sprite touches the basketball.
• 😀 Students will learn to make sprites perform actions like changing costumes, moving, and interacting with other sprites.
• 😀 The lesson emphasizes using variables, such as the 'score' variable, to store and manipulate values in the program.
• 😀 An important step is to ensure the score resets to 0 when the game is restarted or replayed.
• 😀 Evaluation is a part of the lesson where students answer questions based on the program they created and the concepts learned.

Q & A

What is the main focus of the lesson presented in the script?

The main focus of the lesson is on creating a program using Scratch that accepts user input (such as a name) and stores it in a variable, specifically implementing concepts like control codes, input codes, and variables.

What are the key programming concepts introduced in the lesson?

The key programming concepts introduced include control codes (like repeat and if-else), input codes (to accept user input), and variables (to store values such as score).

How do you use the 'when green flag clicked' block in the Scratch program?

The 'when green flag clicked' block is used to trigger the start of the program. It initiates the sequence of events, such as moving sprites, changing costumes, and performing other actions when the program begins.

What is the purpose of the 'forever' block in Scratch?

The 'forever' block is used to create continuous actions in a Scratch program. For example, it keeps a sprite moving or changing costumes repeatedly without stopping.

How does the program allow the user to input their name in Scratch?

The program uses the 'ask' block in Scratch to prompt the user for their name. The user’s response is captured and stored, then displayed as part of a greeting using the 'say' block.

How is the score system implemented in the Scratch program?

The score system is implemented by creating a variable called 'score'. Every time a specific event occurs, like Tika touching the basketball, the score is increased by 1 using the 'change score by 1' block.

What happens when the program is restarted in the Scratch game?

When the program is restarted, the score is reset to 0 by using the 'set score to 0' block. This ensures that the score starts fresh with each new session of the game.

Why is a 'wait 1 second' block used in the program?

The 'wait 1 second' block is used to slow down the movement of sprites, such as Meong and Tika, making their actions more visible and not too rapid, which makes the game more interactive.

What is the role of the 'touching' sensing block in the game?

The 'touching' sensing block is used to detect when two sprites interact, such as when Tika touches the basketball. This triggers an action, like increasing the score by 1 when the basketball is touched.

What is the significance of using a backdrop in the Scratch program?

The backdrop sets the stage for the game. In this lesson, the 'Basketball 1' backdrop creates the basketball court environment, enhancing the visual appeal and context of the game.