Scratch in the classroom Drawing shapes Primary 6

Primary 6 Second Term Lesson Notes – Week 8

Subject: Computer Studies
Class: Primary 6
Term: Second Term
Week: 8
Topic: Scratch in the Classroom – Drawing Shapes

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Behavioral Objectives

By the end of this lesson, pupils should be able to:

1. Define Scratch and explain its purpose in the classroom.
2. Identify the tools in Scratch used for drawing shapes.
3. Create basic shapes such as squares, rectangles, and circles using Scratch.
4. Understand the steps involved in coding shapes in Scratch.

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Keywords

• Scratch
• Coding
• Sprite
• Blocks
• Shapes

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Set Induction

The teacher will display a computer or a projector showing the Scratch interface. Pupils will be asked to identify familiar elements on the screen, such as sprites and blocks, to capture their interest and introduce the topic.

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Entry Behavior

Pupils are familiar with basic computer tools such as Paint and Adobe Photoshop. They have prior knowledge of shapes and simple design tools.

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Learning Resources and Materials

• Computer system with Scratch installed
• Projector (optional)
• Worksheet with instructions for creating shapes
• Example of shapes created in Scratch

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Building Background/Connection to Prior Knowledge

The teacher will remind pupils of how they used other computer tools (e.g., Paint) to draw shapes and explain that Scratch can be used for coding and creating shapes with commands.

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Embedded Core Skills

• Creativity
• Problem-solving
• Critical thinking
• Technology skills

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Instructional Materials

1. Scratch software interface
2. Examples of shapes (square, rectangle, circle)

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Lesson Content

What is Scratch?

• Scratch is a block-based programming language designed for children to learn coding concepts.
• It allows users to create animations, games, and drawings through simple drag-and-drop coding blocks.

Tools in Scratch for Drawing Shapes

1. Sprites: Characters or objects used in Scratch that can move or draw on the stage.
2. Pen Extension: A set of coding blocks used for drawing shapes and designs.
   • Examples: Pen down, Pen up, Set pen color, Change pen size.

Steps to Draw Shapes in Scratch

1. Open Scratch and select a sprite.
2. Add the Pen Extension from the “Extensions” menu.
3. Drag the sprite to the starting position on the stage.
4. Use the “Pen down” block to start drawing.
5. Use motion blocks like “Move” and “Turn” to create shapes.
6. Use “Repeat” blocks to simplify the process of drawing shapes with equal sides (e.g., square).

Examples of Shapes

1. Drawing a Square
   • Use the “Repeat” block to move and turn the sprite 90 degrees four times.

   Code:

   scss

   Copy code

   When Green Flag clicked
Pen down
Repeat (4)
Move (100) steps
Turn (90) degrees
Pen up

2. Drawing a Rectangle
   • Move and turn the sprite to form two long sides and two short sides.
3. Drawing a Circle
   • Use small steps and turns in a loop to create a smooth circle.

   Code:

   scss

   Copy code

   When Green Flag clicked
Pen down
Repeat (36)
Move (10) steps
Turn (10) degrees
Pen up


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Teacher’s Activities

1. Demonstrate how to launch Scratch and select a sprite.
2. Guide pupils to add the Pen Extension.
3. Show how to use blocks to draw basic shapes like squares and circles.
4. Monitor and assist pupils as they create their shapes in Scratch.

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Learners’ Activities

1. Open Scratch on their computers and follow the teacher’s demonstration.
2. Add the Pen Extension and set up their sprite for drawing.
3. Practice coding blocks to draw simple shapes.
4. Experiment with different shapes and pen settings.

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Evaluation Questions

Part A: Objective Questions

1. Scratch is used for _______.
   a) Drawing pictures only
   b) Creating animations, games, and drawings
   c) Sending emails
   d) Writing documents
   Answer: b) Creating animations, games, and drawings
2. The tool used in Scratch for drawing is called the _______.
   a) Brush
   b) Pen Extension
   c) Eraser
   d) Selector
   Answer: b) Pen Extension
3. Which block starts the drawing process in Scratch?
   a) Move
   b) Pen up
   c) Pen down
   d) Repeat
   Answer: c) Pen down
4. A square can be drawn by turning the sprite _______ degrees four times.
   a) 30
   b) 90
   c) 45
   d) 60
   Answer: b) 90
5. The _______ block helps repeat actions in Scratch.
   a) Forever
   b) Wait
   c) Repeat
   d) Go to
   Answer: c) Repeat

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Part B: Theory Questions

1. What is Scratch, and what can it be used for?
2. List three tools in Scratch used for drawing shapes.
3. Write a simple code for drawing a square in Scratch.
4. Explain the purpose of the “Pen down” and “Pen up” blocks.
5. Describe how a circle is drawn in Scratch using coding blocks.

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Part C: True or False Questions

1. The “Pen up” block is used to start drawing.
   False
2. Scratch is a programming language for creating animations and games.
   True
3. The “Repeat” block simplifies the process of drawing shapes.
   True
4. Turning 90 degrees four times creates a rectangle.
   False
5. The Pen Extension is used for editing sprites.
   False

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Part D: Fill-in-the-Gaps Questions

1. The _______ block is used to repeat actions in Scratch.
   Answer: Repeat
2. Scratch is a _______ programming language for children.
   Answer: Block-based
3. A _______ is an object or character used in Scratch.
   Answer: Sprite
4. To draw in Scratch, the _______ extension is added.
   Answer: Pen
5. The “Pen up” block is used to _______ drawing.
   Answer: Stop

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Conclusion

The teacher will review the shapes drawn by the pupils, provide constructive feedback, and ensure they understand the steps involved in coding shapes. Pupils will be encouraged to explore other creative uses of Scratch.

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