This worksheet is designed to replace a lecture on the topic of proving triangles congruent by side-side-side (SSS).
Students need to use their tools of construction to successfully complete the activity, as they will duplicate a triangle and then see that the duplicate is congruent to the original triangle.
I start out class with a 15-minute "mini-lesson," giving my students some basic examples of what today's lesson will be about. Once the mini-lesson is over, I have them get to work within their groups on this worksheet.
I use this activity within cooperative groups, and I circulate to make sure they are getting the purpose of the questions.
The file includes spiral review problems.
This worksheet is intended to be written on directly.
Please download the pdf preview file first, so you can see exactly what's included; the product file is a word document, which you may personalize for your students.
Immediately before this worksheet, I use the worksheet named 'Types of Triangles and Angle Sum Theorems with Answer Key' (http://www.teacherspayteachers.com/Product/Types-of-Triangles-and-Angle-Sum-Theorems-with-Answer-Key-476978
), and immediately after this worksheet, I use the assessment named 'Geometry Individual Test Introductory Material Fall 2013; 2 versions; 3 pages ea' (http://www.teacherspayteachers.com/Product/Geometry-Individual-Test-Introductory-Material-Fall-2013-2-versions-3-pages-ea-1269962