8. Measurement

Lesson

Can you recognise the number of equal parts and what fraction that makes?

Here is a shape divided into parts, use it to answer the following questions.

a

This shape has ⬚ equal parts.

Worked Solution

b

Each part is \dfrac{⬚}{⬚} of the whole.

Worked Solution

Idea summary

When using area models we can write each part as a fraction: \dfrac{\text{Number of shaded parts}}{\text{ Total number of parts}}

When we divide shapes into equal parts, we have seen how the parts can be described using fractions. We can also use this to describe the area of part of our shape.

We can divide shapes up into parts and describe these parts as fractions. We can also use this to describe the area of a part of our shape.

Which of the following shows \dfrac{2}{6} of the area shaded?

A

B

Worked Solution

Idea summary

If our shape doesn't have equal parts, we can still estimate the area for parts of our shape.