My Geometry students struggle with the isosceles right triangle (45-45-90) and 30-60-90 special right triangle shortcuts. The purpose of this activity is to give the students enough practice so that they see the connection directly. I've found that if they derive the formulas and shortcuts, they are much more apt to recall them later.
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.
For this worksheet, I expect students to show their work on a separate sheet of paper.
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 'Pythagorean Theorem Spring 2014' (http://www.teacherspayteachers.com/Product/Pythagorean-Theorem-Spring-2014-1266774
), and immediately after this worksheet, I use the mini lesson named 'Introduction to Trigonometry Worksheet Spring 2014 mini lesson' (http://www.teacherspayteachers.com/Product/Introduction-to-Trigonometry-Worksheet-Spring-2014-mini-lesson-1267154
Keywords: geometry, special right triangles, isosceles right triangle, 45-45-right, 45-45-90, 30-60-90, 30-60-right, shortcuts, Jonnard