Days 157, 158, 159, 160: Rolling Cups

I assigned this as a final project for my geometry classes. I wanted to see (and I wanted students to see) how well they could apply their mathematical skills to real world applications. I struggle with being less helpful, while keeping students from giving up, so i really studied all of the suggested questions that … Continue reading Days 157, 158, 159, 160: Rolling Cups

Day 155 & 156: The Triplets of Cellville

I chose this Mathalicious lesson because we have not used circles enough in my geometry classes. We stared the school year with constructions, but haven't used them much this semester and I wanted them to recall and extend prior learning. I also wanted students to gain more experience modeling real world scenario's with mathematics & … Continue reading Day 155 & 156: The Triplets of Cellville

Day 151 & 152: Similarity transformation proofs

I waited until the end of the school year for this because I wanted to encourage retention by requiring students to remember basic transformations in addition to applying dilatation which we just worked on. I searched for a good way to help students develop understanding of this. The best description of this standard that I … Continue reading Day 151 & 152: Similarity transformation proofs

Day 147: Practice similarity with Area & Volume

I had a sub. Students used their interactive notes to practice applying similarity to area and volume. I'm not sure why, but students really struggle with this concept. I need to find a better way for them to SEE the impact of a scale factor on area & volume next year. This was the highlight. … Continue reading Day 147: Practice similarity with Area & Volume