We made and decorated paper cakes.
We each decided whether we were going to cutĀ our cakeĀ into half or quarter.
We know that each half or quarter needs to be exactly the same size.
We folded the paper to find the middle.
When we cut 1 whole into half, we end up with 2 bits.
When we cut 1 whole into quarters, we end up with 4 bits.