3
Pictures and guessing games
Learner’s Book 1: Unit 2, p. 45
GoalMake a picture from 2D shapes, count the shapes used, and ask questions about sides to guess a shape.
New words
same · just like anotherdifferent · not the sameguess · say what you think the answer is
Explanation
We can make pictures with 2D shapes. A house can be made from a square for the wall, a triangle for the roof and a rectangle for the door. Count how many shapes you used. Then look at a partner’s picture. What is the same? What is different? You can also play a guessing game. Hide a shape in a bag. Your partner asks you about it, for example: Does it have straight sides? Can you count them? Then they guess the shape.
The shape is a triangle.
| Question | Answer |
|---|---|
| Does it have straight sides? | yes |
| How many sides can you count? | 3 |
Worked examples
A house: the roof is a triangle, the wall is a square and the door is a rectangle. That is 3 shapes.
A boat: a rectangle for the boat and a triangle for the sail. That is 2 shapes.
Guess my shape: it has 4 straight sides, two long and two short. It is a rectangle.
Class activity
Picture time: cut out circles, squares, triangles and rectangles from paper (or draw them). Make a picture of a robot or a house. Count how many shapes of each kind you used. Show your partner and say what is the same and what is different.
Practice
1
A picture uses 1 square, 1 triangle and 2 circles. How many shapes is that altogether?
4
2
Guess my shape: it has 1 curved side and no straight sides.
a circle
3
Guess my shape: it has 3 straight sides.
a triangle
4
Look at the two shapes. Say one way they are the same and one way they are different.
Same: both have 4 straight sides. Different: the square’s sides are all the same length, but the rectangle has two long and two short sides.