Sequence the following tasks as they would be taken up while developing the understanding of shapes and space across primary classes
A. Matches the properties of 2-D shapes by observing their sides and corners.
B. Describes intuitively the properties of 2-D shapes.
C. Sorts 2-D shapes.
D. Describes the various 2-D shapes by counting their sides, corners and diagonals.

Options

A. A, D,B,C
B. C, A, D,B
C. D, B, A,C
D. O,B,D, A

Answer

To sequence the tasks involved in developing an understanding of shapes and space across primary classes, we can follow these steps:

### Step-by-Step Solution:

1. **Sort 2-D Shapes (C)**: The first step in understanding shapes is to sort them. This helps students categorize different shapes based on their characteristics, such as being a triangle, square, or circle.

2. **Match the Properties of 2-D Shapes by Observing Their Sides and Corners (A)**: After sorting the shapes, the next logical step is to match the properties of these shapes. This involves observing and comparing the number of sides and corners of the sorted shapes.

3. **Describe the Various 2-D Shapes by Counting Their Sides, Corners, and Diagonals (D)**: Once the properties are matched, students can describe the shapes in more detail. This includes counting the sides, corners, and diagonals, which deepens their understanding of the shapes.

4. **Describe Intuitively the Properties of 2-D Shapes (B)**: Finally, students can describe the properties of the shapes intuitively. This step involves using their understanding and observations to articulate what they have learned about the shapes.

### Final Sequence:
- C (Sorts 2-D shapes)
- A (Matches the properties of 2-D shapes by observing their sides and corners)
- D (Describes the various 2-D shapes by counting their sides, corners, and diagonals)
- B (Describes intuitively the properties of 2-D shapes)

### Answer:
The correct sequence is: **C, A, D, B**.

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