This worksheet helps students practice estimating the area of various irregular shapes by counting squares on a grid.

Problem Overview:

The task is to estimate the area of six shapes (A, B, C, D, E, F) using a 1 cm square grid and then list them in order from smallest to largest area.

Step-by-Step Solution:

#### Shape A:
- Shape A is a yellow shape with a curved top.
- Count the full squares covered by the shape.
- Estimate partial squares as fractions (e.g., half squares count as 0.5).
- Approximate total area: 30 cm².

#### Shape B:
- Shape B is a blue circle.
- Count the full squares covered by the circle.
- Estimate partial squares as fractions.
- Approximate total area: 28 cm².

#### Shape C:
- Shape C is a green shape with a wavy bottom.
- Count the full squares covered by the shape.
- Estimate partial squares as fractions.
- Approximate total area: 20 cm².

#### Shape D:
- Shape D is a light blue kite or diamond shape.
- Count the full squares covered by the shape.
- Estimate partial squares as fractions.
- Approximate total area: 35 cm².

#### Shape E:
- Shape E is a purple shape with a hole in the middle.
- Count the full squares covered by the outer boundary.
- Subtract the area of the inner hole.
- Outer area: ~40 cm².
- Inner hole area: ~10 cm².
- Net area: 30 cm².

#### Shape F:
- Shape F is an orange flower-like shape.
- Count the full squares covered by the shape.
- Estimate partial squares as fractions.
- Approximate total area: 15 cm².

Estimated Areas:

- Shape A: 30 cm²
- Shape B: 28 cm²
- Shape C: 20 cm²
- Shape D: 35 cm²
- Shape E: 30 cm²
- Shape F: 15 cm²

Ordering the Shapes by Area:

To list the shapes in order from smallest to largest area:
1. F (15 cm²)
2. C (20 cm²)
3. B (28 cm²)
4. A (30 cm²)
5. E (30 cm²)
6. D (35 cm²)

Final Answer:

\[
\boxed{F, C, B, A, E, D}
\]