☰ Year plan · Mathematics

Review of the year

Week 34 · Unit R · Review · 4 lessons
2

Review: shapes and where things are

Learner’s Book 1: Units 10–16, pp. 138–240
GoalName 2D and 3D shapes, use position words and follow directions.
New words
2D shape · a flat shape, like a circle or a triangle3D shape · a solid shape, like a cube or a coneturn left / right · change direction
Explanation

Some shapes are flat and some are solid. Flat shapes are 2D: circle, triangle, square and rectangle. We count their sides and corners. Solid shapes are 3D: cube, cuboid, cylinder, cone and sphere. They have faces and some of them can roll. We use words like above, below, next to and between to say where things are. For directions we say forward, turn left and turn right.

circletrianglesquare
Worked examples
A cylinder has 2 flat faces that are circles and 1 curved face. It can stand up and it can roll.
3 sides4 sides
A triangle has 3 sides and 3 corners. A square has 4 sides and 4 corners.
start
Start at the arrow, facing up. Forward 1, turn left, forward 2. You reach the end of the path, on the left.
Class activity

Shape hunt: find a cube, a cylinder, a cone and a sphere at home (a box, a tin, a party hat, a ball). Which of them can roll? Then give a friend directions across the room: forward 3 steps, turn left, forward 1 step.

Practice
1
What is the name of this solid shape?
2
How many corners does a rectangle have?
3
What comes next?
4
Start at the arrow, facing up. Forward 1, turn right, forward 2, turn left, forward 1. What do you reach?
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