For example
Mix one part syrup with four parts water: a ratio of 1 to 4.
In Grade 5
Children build ratios with real objects, keeping the groups in step as the amounts grow.
Watch out for
Children often treat a ratio as a fraction of the whole. Two to three means five parts altogether, not two out of three.
Say it at home
When mixing a drink, talk about how many parts of each one go in.
Try it together
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