Need find some real-life uses from learning measurement conversions whether you are involved in construction, travel, medicine, cooking, etc. You can use inches to miles or feet to miles or cups to quarts explain step by step.
I was once all set to make ice cream and realized that I only had one egg, but the recipe called for two. Consequently, I had to scale-down all of the ingredients. For example, rather than using one gallon of milk, I had to use convert to quarts (4 quarts in a gallon...thus I used 2 quarts). Similarly, I had to convert 1 tablespoon into teaspoons (3 teaspoons in 1 tablespoon...thus I had to use 1.5 teaspoons).