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Texas Instruments

Sands of Time

For Teachers 9th - 12th
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...
Worksheet
Yummy Math

Happy 14th B’ak’tun, the start of the next Great Mayan cycle

For Students 5th - 9th Standards
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...
Worksheet
Curated OER

Working with Sinusoidal Models

For Students 6th - 10th
In this sinusoidal model worksheet, students use the sinusoidal model to solve word problems about the hours of daylight in Anchorage, Alaska. Students complete 5 problems.
Lesson Plan
Curated OER

Navigation

For Teachers 9th - 12th
Learners study the basic methods for finding one's position on Earth. Latitude can be deduced from the height above the horizon of the pole star or of the noontime Sun, while longitude requires an accurate clock giving universal time.
Activity
Texas Instruments

Texas Instruments: Sands of Time

For Teachers 9th - 10th
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...
Activity
NumberNut

Number Nut: Calendar Origins

For Students 3rd - 8th
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...