Introduction
Look around you. Your classroom has walls. The cassava field has no walls. Shapes are everywhere: a wheel, a notebook, a roof. In this lesson, you learn to tell spaces apart and to draw shapes.
🇨🇩 Space and size
Open/closed spaces, shapes and solids
⏱ 15 minOfficial programme: CD-M3-ESP-01
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🎯 In this lesson, you will learn to
- Tell open from closed spaces; draw square, rectangle, circle, triangle.
The lesson
Explanation
Closed space: there are walls or a fence all around. To go out, we use a door.
- the classroom 🏫
- the house
- the goat pen
Open space: there is nothing all around. We can go anywhere.
- the field
- the road
- the yard with no fence
Explanation
Here are four shapes.
- The square: 4 sides. All 4 sides are equal.
- The rectangle: 4 sides. Two sides are long, two are short.
- The triangle: 3 sides and 3 corners.
- The circle: round. It has no sides and no corners.
To draw, make straight lines. Close the shape well. For the circle, draw a round line.
Worked example
Problem: Neema is in the school yard. There is no wall. Is it an open or a closed space?
Step 1: I look around. There is no wall.
Step 2: I can go anywhere.
Answer: it is an open space.
Worked example
Problem: What shape is a bicycle wheel?
Step 1: I look at the wheel. It is round.
Step 2: It has no sides and no corners.
Answer: it is a circle.
Watch out
Watch out: the square and the rectangle both have 4 sides. In the square, all 4 sides are equal. In the rectangle, two sides are longer. Count and look at each side carefully.
Key points
- Closed space: walls all around.
- Open space: nothing all around.
- Square: 4 equal sides.
- Rectangle: 4 sides, 2 long and 2 short.
- Triangle: 3 sides.
- Circle: round, no sides.
✍️ Exercises
Answer one exercise at a time. Your answer is checked right away, with an explanation.
Exercise 1 of 8
★ EasyWhich place is a closed space?