Download free 90-day trial versions of the most popular TI software and handheld emulators.
Check out TI Rover activities that put math, science and coding in motion.
Customize your summit experience with sessions on math, STEM, coding and more.
TI Connect™ CE
February 06, 2015
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.
© Copyright 1995-2018 Texas Instruments Incorporated. All rights reserved.