Find answers to the top 10 questions parents ask about TI graphing calculators.
Learn about the math and science behind what students are into, from art to fashion and more.
Get hundreds of video lessons that show how to graph parent functions and transformations.
Texas Instruments
9-12
45 Minutes
TI Connect™ CE
Students simulate the process a surveyor would use to measure the width of a river by measuring length on one side of the river and angles formed by various reference points.
Students use the RIVER data in Cabri™ Jr. to investigate the scenario of a team building a bridge over a river. Students work as a team to find some ideas on ways to measure the width indirectly without crossing the river.
Students will use points to represent stakes, and will draw a triangle between two stakes on one side of the river and a rock on the far side. They should see that the triangle is a not a right triangle, and they will not be able to use the Pythagorean Theorem.
Students move forward to prove the Law of Sines using the LAWSINES data in Cabri Jr.® Students will relate the lengths of the sides of a triangle to its angles.
TI websites use cookies to optimize site functionality and improve your experience. To find out more or to change your preferences, see our cookie policy page. Click Agree and Proceed to accept cookies and enter the site.
You can control your preferences for how we use cookies to collect and use information while you're on TI websites by adjusting the status of these categories.