This unit teaches metric conversion (changing from one unit of metric measurement to another unit of metric measurement) will captivate and motivate your students to learn the metric system in an unprecedented way. Students can't get enough of and love to play "Meter Man," "Liter Lady," and "Granny Gram." The reason this unit is easy to learn is that the metric system follows our number system exactly. (Learning metric prefixes is the key!) This unit is comprised of 4 lesson plans, test, worksheets, answer keys, "Meter Man," "Liter Lady," and "Granny Gram" game instructions, large and small number sheets, and Core Standards. All teachers who teach math and science in grades 4-8 should have this unit. If all teachers used this program, metric measurement would become our country's primary system of measurement within a generation of time.