Subject: Mathematics (Numeracy) | Class: Primary 1 | Term: 3rd Term | Week: 9
Previous Lesson: Weight — Week 8
Learning Objectives
- Identify a square, a rectangle and a circle.
- Match and name a square, a rectangle and a circle.
- Distinguish between squares and rectangles.
- Mention square, rectangular and circular shapes found at home.
Lesson 1 — What Are 2D Shapes?
Plane (2D) shapes are flat, closed shapes that have only two dimensions — length and width. They include triangles, quadrilaterals, and polygons. Plane shapes are made of straight lines, curved lines, or both.
Lesson 2 — Two Dimensional Shapes
| Shape | Properties | Examples in the Environment |
|---|---|---|
| Square | 4 equal sides, 4 equal corners (right angles) | Floor tiles, window panes, bread slices |
| Rectangle | 2 long sides, 2 short sides, 4 right angles | Doors, books, chalkboard, ruler |
| Circle | No corners, perfectly round, all points equal distance from centre | Clock face, coin, plate, wheel, orange |
| Triangle | 3 sides, 3 corners | Road signs, roof of a house |
Lesson 3 — Square vs Rectangle
| Square | Rectangle |
|---|---|
| All 4 sides are equal | Only opposite sides are equal |
| Looks the same in all directions | Has one pair of longer sides |
| Example: floor tile | Example: door, book |
Lesson Evaluation
- How many sides does a square have?
- What is the difference between a square and a rectangle?
- Name two objects at home that are shaped like a circle.
- Name two objects in the classroom shaped like a rectangle.
Counting Activity — Numbers 231–240
| 231 | 232 | 233 | 234 | 235 | 236 | 237 | 238 | 239 | 240 |
Next Lesson: Three Dimensional Shapes — Week 10