Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

How accurate you need to be when you measure depends on the situation. To measure and draw well, you need to know how to use a ruler and understand the different units of measurement, such as ...

Whether or not you're a tool enthusiast or frequent DIYer, a tape measure is a must-have. For a homeowner figuring out where to fit new furniture, a hobbyist starting work on a project, or a ...