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 many inches are in a foot? Pick inches or feet to measure the length of objects. Warm up with a Mystery Math Mistake to add 2 two-digit numbers. Explore how many inches there are in a foot.

DNA Mathematics professional development empowers educators to master the mathematics being taught in classrooms. To exemplify the benefits of DNA Mathematics, download our FREE white paper now to ...

In this educational film, a father explains to his son Tommy the importance of weights and measures in everyday life. As they prepare to set up a train set, the father illustrates how measurements are ...

There are hundreds, if not thousands, of ways to track the health of a population: the average blood pressure, the rate of mental illness and the average weight. Epidemiologists have been collecting ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. 00:00:00:00 A rocket launches. 00:00:00:00 MAN 1: And it has cleared the tower. 00:00:02:13 MAN 2: ...