time measurement

Looks at seasons as a measurement of time, and discusses the characteristics of winter, spring, summer, and fall.

This book introduces a minute, explaining that it is made up of 60 seconds, it is part of an analog clock, it is part of a digital clock, and it can help people stay on schedule.

Simple text and photographs introduce the seven days of the week and explain how time is measured.

Explains the concept of time, offers suggestions for understanding the length of seconds, minutes, and hours, and looks at how clocks measure time.