I used this One Big Square Task with my trigonometry students to review 45-45-90 special right triangles. I found this task in the Open Curriculum Task Database. I loved listening to the conversations my students had as they struggled through this problem. And, I mean “struggle” in the best possible way! Free Download of One …

# Special Right Triangles

I found this dragon puzzle to practice special right triangles online, and I fell in love with it. Each of the triangles is a special right triangle. I did a bit of research, and I was able to find the original source. I also found the same problem in McDougal Littell’s Geometry: An Integrated …

I created this special right triangle discovery activity to help my trigonometry students discover (or rediscover) the patterns in the sides of the 30-60-90 and 45-45-90 special right triangles. 45-45-90 Special Right Triangle Discovery Activity The page I’m showing you FIRST is actually what we did LAST. Yes, I’m that teacher who makes my students …

Since I’m teaching trig this year, I wanted to create some special right triangles posters to jog my students’ memories. Special right triangles are a topic they study in geometry but have often forgotten by the time they end up in my trig class. I designed the title to print on 8.5″ x 11″ and …

I created this special right triangles practice book for my trigonometry students to glue in their interactive notebooks as part of our beginning of the year geometry review. This was our last topic to review before delving into actual trigonometry. I don’t know exactly what it is about special right triangles, but I LOVE them. …