Identify Simple 2D Shapes worksheet for children to practice recognizing and shading squares, triangles, circles, and rectangles.

Let's solve this step-by-step based on the instructions in the worksheet:

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Task:

Identify and shade the 2D shapes according to the following color code:
- Squares → Blue
- Triangles → Green
- Circles → Red
- Rectangles → Yellow
- Other shapes → Leave white

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Step 1: Understand the Shapes

We’ll go through each shape one by one and identify it.

#### Row 1:
1. Rectangle (long, four sides, opposite sides equal) → Yellow
2. Pentagon (5 sides) → Other → White
3. Circle → Red
4. Triangle (3 sides) → Green

#### Row 2:
5. Irregular shape (not a standard shape) → Other → White
6. Square (four equal sides, right angles) → Blue
7. Hexagon (6 sides) → Other → White
8. Circle → Red

#### Row 3:
9. Trapezoid (quadrilateral with one pair of parallel sides) → Other → White
10. Triangle → Green
11. Curved shape (like a crescent or segment) → Other → White
12. Square → Blue

#### Row 4:
13. Square → Blue
14. Right triangle → Green
15. Parallelogram (opposite sides parallel, not a rectangle/square) → Other → White
16. Right triangle → Green

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Summary of Shading:

| Shape | Type | Color |
|------|------|-------|
| 1 | Rectangle | Yellow |
| 2 | Pentagon | White |
| 3 | Circle | Red |
| 4 | Triangle | Green |
| 5 | Irregular | White |
| 6 | Square | Blue |
| 7 | Hexagon | White |
| 8 | Circle | Red |
| 9 | Trapezoid | White |
| 10 | Triangle | Green |
| 11 | Curved shape | White |
| 12 | Square | Blue |
| 13 | Square | Blue |
| 14 | Triangle | Green |
| 15 | Parallelogram | White |
| 16 | Triangle | Green |

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Final Answer:

Shade the shapes as follows:

- Blue (Squares): Positions 6, 12, 13
- Green (Triangles): Positions 4, 10, 14, 16
- Red (Circles): Positions 3, 8
- Yellow (Rectangles): Position 1
- White (Others): Positions 2, 5, 7, 9, 11, 15

> ✔ Note: The rectangle in position 1 is not a square because its length ≠ width. So it's shaded yellow, not blue.

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Explanation:

- A square has 4 equal sides and 4 right angles.
- A rectangle has 4 sides, 4 right angles, but opposite sides are equal (not necessarily all equal).
- A triangle has 3 straight sides.
- A circle is round with no sides.
- Any shape that doesn't fit these definitions (e.g., pentagons, hexagons, trapezoids, irregular shapes) stays white.

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✔ This completes the task!