Look at the two pizzas in the picture below. The first one is cut into two big halves, and one half has been taken. The second one is cut into eight small slices, and four slices have been taken. Are these the same amount of pizza, or are they different?

Watch as the same amount of pizza appears different ways. The first three pizzas below all show one half: as two slices, as four slices, and as eight slices. The next three all show one third: as three slices, as six slices, and as twelve slices. The shaded amount stays the same size each time. Only the slice count changes.

Today we explore equivalent fractions on the pizza-slicer. The pizza starts at 2/4, which is one half. Take turns at the board: change the slice count, then change how many slices are shaded, to find new fractions that name the same amount of pizza as one half.