Jim measures the giant so that he can buy glasses, a wig, and false teeth for the giant. The children can brainstorm ways we use measurement in our world. Children can measure height, foot length, etc. of other children. Graphs can be created using this information. This would be a good book to use as in introduction to your measurement unit.
Children can record their observations and conclusions in their learning logs.
Another delightful book to use in introducing measurement is How Big Is A Foot by Rolf Myller. Ask student to make another path, straight not crooked, that would be the same length. Ask student to explain about the path being created. A classroom store helps children not only to recognize money, but also to value it. Set up a store with inexpensive toys, pencils, erasers, candy, etc.