Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Bring a new dimension of learning to your classroom with activities that put math in motion.
Explore teaching strategies for synchronous and asynchronous learning with TI technology.
Drive deeper, more relevant understanding of science in middle grades and high school.
TI Connectivity CableUnit-to-Unit link cables
Students explore two ways of comparing side lengths of similar triangles. They will calculate ratios and change the triangles to see how the ratio changes.
Students will explore two ways of comparing side lengths of similar triangles. First students will calculate ratios that compare corresponding side lengths.
They can observe how the ratio changes as they move the triangle vertices and increase the shape of the similar triangle. Students will write a proportion for the three ratios.
Then students will calculate ratios that compare two sides of the same triangle. They will write three proportions for the six ratios. The teacher should discuss how the proportions in this activity can be set up to find a missing side length.
© Copyright 1995-2020 Texas Instruments Incorporated. All rights reserved.