Read on for history, information and activities you can use for studying Time Zones in your Montessori classroom.
Studying Time Zones in the Montessori Classroom: Daylight Saving Time History and Activities
The History behind Daylight Saving Time
Since the dawn of man, humans have measured time by the position of the sun. At noon, the sun is highest in the sky. Sundials were used until well into the Middle Ages. Cities set their clocks according to the sundials. Thus, different cities had different times, according to the sun. Later, as we became more industrialized, there came the need to make “time” more standardized. Standard time zones in the United States were first instituted in 1883 by the railroads, but were not officially recognized or established until 1918 with the Standard Time Act.
Daylight Saving Time was first introduced in England in 1907 by William Willett, though it was first practiced in the ancient world, beginning with Roman water clocks. Willett suggested that by observing Daylight Saving Time, there would be an increase in daylight recreation time as well as saving millions of dollars (pounds) in lighting costs. The onset of the First World War made it even more important as there was a huge need to save coal as well as aiding in air raid blackouts. In 1942, the United States reinstated Daylight Saving Time as a way to conserve energy. By 1966, over a million Americans were observing Daylight Savings Time.
Teaching About Time Zones in the Montessori Classroom
Cultural Geography is the study of specific places and peoples, with an emphasis on the interaction of the two. Understanding the concept of time is part of the work of Cultural Geography. When studying about time, it is important for students to understand that the earth is divided both by longitude and latitude, creating Northern and Southern Hemispheres as well as establishing Eastern and Western Hemispheres. (You might want to review these using a globe).
It is important for students to remember that meridians of longitude provide the basis for time zones. These meridians divide the earth into 24, 15 degree sections, with each section corresponding to an hour of the clock. Each time zone advances the clock by one hour from west to east, creating what is commonly known as standard time. With standard time, each time zone experiences noon when the sun is directly overhead and midnight when the sun is on the opposite side of the earth.
One way to concretely demonstrate the abstract concept of time zones with a globe and stickers labeled with 10 am, 11 am, noon, 1 pm, and 2 pm. Invite a student to place the sticker labeled “noon” on the globe, nearest the meridian in which you live. Discuss standard time and point out the 24 meridians, as well as the west to east movement of the sun. Remind them that one way to remember the progression of time zones is to think about which way the sun moves across the sky. Since the sun moves to the west, it is always closer to night time to the east of any position. Then, invite other students to place the rest of the time labels on the globe.
Classroom Extensions for Daylight Saving time
- Many of us usually refer to the time change as Daylight Savings Time. Actually, Daylight Saving Time uses the present participle of saving as an adjective to mean “a labor saving device”. This is an excellent point to make in an upper elementary grammar lesson!
- For fascinating facts and incidents, visit the Webexibits website, to learn how Daylight Saving Time thwarted terrorists and helped save the lives of Trick-or-Treating children.
- If you live at or near the equator, day and night are nearly the same lengths – 12 hours. Elsewhere, there is more sunlight in the summer than in the winter. The closer you live to the poles, the longer periods of sunlight in the summer. Daylight Saving Time is not helpful in the tropics.
- To help familiarize children with the concept of “time changing”, practice telling time using Standard Time and Daylight Saving Time. Ask questions such as “What time was it at this time last week?”
- Write a journal about how students feel about Daylight Saving Time.
- Older students can research if energy is conserved during Daylight Saving Time.
- Be creative. Write a story featuring Daylight Saving Time.
© North American Montessori Center - originally posted in its entirety at Montessori Teacher Training on Monday, March 17, 2008.