Information Technology (Computer Studies) – Primary 6 Weekly Short Class Lesson Notes for Second Term

WEEK 8 – APPLICATION OF SCRATCH PROGRAMMING TO DRAW BASIC SHAPES

MEANING OF SCRATCH PROGRAMMING

Scratch is a simple programming software used by pupils to create drawings, animations, and games using blocks instead of typing codes.

 

IMPORTANCE OF USING SCRATCH TO DRAW SHAPES

1. It makes learning fun and easy.

2. It helps pupils understand basic programming.

3. It develops thinking and creativity.

4. It improves computer skills.

 

DRAWING SHAPES IN SCRATCH

In Scratch, we use motion and pen blocks to draw shapes like lines, squares, rectangles, and circles.

 

TOOLS / BLOCKS USED TO DRAW SHAPES IN SCRATCH

1. Pen Blocks

Pen down – starts drawing

Pen up – stops drawing

Set pen colour – changes colour

Set pen size – changes line thickness

 

2. Motion Blocks

Move steps – moves the sprite forward

Turn degrees – turns the sprite left or right

 

3. Control Blocks

Repeat – repeats steps to form shapes

 

STEPS TO DRAW A SQUARE IN SCRATCH

1. Open Scratch.

2. Click on Add Extension → Pen.

3. Choose a sprite (e.g. Cat).

4. Use Pen down.

5. Use Move 100 steps.

6. Use Turn 90 degrees.

7. Repeat the steps 4 times.

8. Use Pen up.

 

EXAMPLES OF BASIC SHAPES DRAWN IN SCRATCH

1. Line – Move sprite forward using Pen down.

2. Square – Move and turn 90 degrees four times.

3. Rectangle – Move long side, turn, move short side, turn.

4. Circle – Move small steps and turn small angles many times.

 

SCRATCH PROGRAMMING TO DRAW BASIC SAHPES

INSTRUCTION – Choose the correct answer from the options A – D.

1. Scratch is a ______ programming software.

A. text-based

B. block-based

C. hardware

D. typing

 

2. Which Scratch block is used to start drawing?

A. Pen up

B. Pen down

C. Say

D. Wait

 

3. The block used to move a sprite forward while drawing is _______.

A. Turn

B. Say

C. Move steps

D. Wait

 

4. Which block is used to stop drawing in Scratch?

A. Pen down

B. Move steps

C. Turn

D. Pen up

 

5. How many times do you turn 90 degrees to draw a square?

A. 2 times

B. 3 times

C. 4 times

D. 5 times

 

6. Which block is used to repeat actions when drawing shapes?

A. Repeat

B. Say

C. Pen colour

D. Wait

 

7. Which of the following is a basic shape drawn in Scratch?

A. Mountain

B. Square

C. House

D. Car

 

8. The Pen blocks are found under which Scratch extension?

A. Motion

B. Control

C. Events

D. Pen

 

9. To draw a circle in Scratch, the sprite should _______.

A. move and turn a little many times

B. move straight once

C. turn 90 degrees once

D. stop moving

 

10. Drawing shapes in Scratch helps pupils to develop _______.

A. laziness

B. fear

C. confusion

D. creativity

ANSWER KEY – 1. B 2. B 3. C 4. D 5. C 6. A 7. B 8. D 9. A 10. D