Twelfth graders explore an application of integration. A calculus lesson prompts class members to find the length of the day where they live during the winter and summer solstice.  Using data relating to the solstices at...

This site provides a learning activity that can be adapted for all age levels that deals with the seasons. Students are asked to become a "season sleuth" and discover what causes the seasons to change.

In this activity, students can use a graphing calculator to find a regression equation and then interpolate the data from the equation using integration. They will explore the length of day during the winter and summer solstice at...

[Free Registration/Login Required] An informational text about the longest and shortest days of the year in the United States. A question sheet is available to help students build skills in reading comprehension.

History and mathematics merge in this lesson that explores the origin of the calendar. Learn how it all got started in this detailed lesson that includes a simple months of the year game and a more challenging time conversion game. Both...

Learn about the four seasons, when they occur in the northern and southern hemispheres, and why the seasons change as the Earth rotates around the Sun.