Having trouble getting your kids to remember the prefixes for metric measurement, volume and weight? Use this template as a craftivity for your students to get them to remember the mnemonic device "King Harold Doesn't Usually Drink Chocolate Milk". Turn the circles into a caterpillar, connecting them with glue or tape, or attaching them with glue to a long strip of construction paper once they're colored and cut out.
Teaching suggestion: I have my students color the first three circles (King, Harold & Doesn't) all one color, the base unit circle another color and the last three (Drink Chocolate Milk) a third color. This helps them visually discriminate between which numbers are larger than one of whatever unit you're working with (meter, gram, liter) and which are smaller than one unit.