Look at these three pizzas on the board. The first one is cut into 2 slices, and 1 slice is shaded. The second is cut into 4 slices, and 2 slices are shaded. The third is cut into 8 slices, and 4 slices are shaded.

First pizza: 1 of 2 shaded

Second pizza: 2 of 4 shaded

Third pizza: 4 of 8 shaded

Here is the question: do all three pizzas have the same amount shaded? Or is one of them a bigger amount than the others?

Three pizzas line up on the interactive, each labelled with a fraction and its equal partners. Notice the shaded amount on each pizza. What is happening to the top and bottom numbers each time?

Today we'll explore equivalent fractions with the pizza tool on the board. Let's start with 1/5 shaded. We want to show the very same amount with more slices. If we cut the pizza into 10 instead of 5, how many slices do we shade to match? Call it out, then a pupil will come up and build it to check.

Today we match equivalent fractions. The board names a fraction, and we shade a different number of slices on the pizza on the board to show the very same amount. Each round, the whole class calls out the multiplier together first, then one pupil comes up to build it.

What we learned today

• Equivalent fractions name the same amount with different numbers of slices.
• To find an equivalent fraction, multiply the top and the bottom by the same number.
• The simplest form uses the smallest numbers — like ½ instead of 4/8.