Illustrative Mathematics
Converse of the Pythagorean Theorem
Use the given tasks and detailed teacher's commentary to introduce your 8th graders to the Pythagorean theorem and its converse. Embedded links to information about Egyptian geometry make your presentation interesting. Consider...
Yummy Math
Happy 14th B’ak’tun, the start of the next Great Mayan cycle
The ancient Mayans had a complex calendar and number system with a rich history. In fact, the date 12/21/2012 was the center of much controversy as to whether or not it was the end of time. It wasn't the end of time, but...
Curated OER
Mathematics at the Frontier of Astronomy
Students explore the different types of measurements used in astronomy. For this space science lesson, students explain the relationship between planets' orbits and distance from the sun using Kepler's Laws. They discuss how math aides...
Curated OER
Lesson Plans Using Calendars
Students can learn about the history of calendars and the use of time management skills with these lesson plans.
Curated OER
Top Ten Summer Lesson Plans: Make the Kick Off to Summer Fun!
The right summer lesson plans can help both teachers and students spend the final days of school in a fun and productive way.
Curated OER
A Statistical Look at Jewish History
Students complete their examination over the Jewish Diaspora. Using population figures, they discover the importance of percentages in exploring trends. They use their own ethnic group and determine how it is represented in the United...
Curated OER
Extraterrestrial Communication: Can We Talk to Anybody Out There?
Students examine the possibilities of communication with other living organisms within our solar system through research and hands on activities, as well as observing and analyzing teacher demonstrations.
Curated OER
Letters to the Man in the Moon
Students write and communicate mathematically with their classmates. They discuss the mathematics that it took to allow us to conquer space and land on the moon. They sketch a plaque they would leave on the moon.
Curated OER
Mathematical Contributions By Women
Third graders explore the contributions of women to mathematics by writing a research paper, presenting a summary to their peers, and sharing an activity with their peers. They use a variety of reference materials to gather information...
Curated OER
Babylonian Square Roots
Students are introduced to a method for finding square roots used by the Babylonian people of Mesopotamia. The method involves dividing and averaging, over and over, to find a more accurate solution with each repeat of the process.
Curated OER
Where Did Everyone Go?
Fifth graders view a video, and perform related activities on prehistoric archaeology to gain an understanding about the importance of careful data collection. They develop a system of cataloging objects using coordinate mapping to...