time

Introduces the concept of time and describes different parts of the day, such as morning, afternoon, and evening.

The first program describes probability and its use in science, business and games. The second episode explores time and its measurement. Offers related experiments.

A boy learns the difference between yesterday when he could not ride his bike and today when he leads all the bicyclists.

"The mathematical concepts of elapsed time, converting units of time, and equivalent units of time are introduced as readers learn about astronauts aboard the International Space Station. Concepts include adding and subtracting units of time, using a number line diagram, and time intervals. This book features a discover activity, connections to science and history, and mathematical vocabulary introduction"--Provided by publisher.

When Max misplaces his digital watch, he replaces it with an analog watch that he does not know how to read and finds himself late for everything.

A comprehensive description of time theories and timekeeping through the years, from earliest calendars and sundials to atomic-powered clocks.