Ratio
My favourite ratio example in my classroom was the ratio of a square decimeter to a square meter.
The ratio of one square decimeter, (the white square in the middle of the above photo), to a square meter is 1:100.
You can also use the relationship of linear decimeters and linear meters but it is reversed this time: 10:1
Question: If a slice of cheese is about the same size as a square decimeter, how many slices of cheese would it take to cover a cubic decimeter?
The ratio of one square decimeter, (the white square in the middle of the above photo), to a square meter is 1:100.
You can also use the relationship of linear decimeters and linear meters but it is reversed this time: 10:1
Question: If a slice of cheese is about the same size as a square decimeter, how many slices of cheese would it take to cover a cubic decimeter?