Download these free worksheets to sharpen your time skills. Sheets focus on elapsed time, telling time on analog clocks, calendars, and converting time.

Babylon can be credited with many achievements in science in math. This short passage describes some of these achievements and how they related to their religious beliefs. A bibliography is included for further reference.

Students are challenged to design a healthy city in this unit plan. The cross-curricular unit covers content standards for ninth grade in science, language arts, world geography, and math. Students explore air quality and the impact it...

After a historical introduction, this site from the University of St. Andrews provides information about the mathematics of the Maya Civilization and shows just how advanced they were.