Geometry Planning Guide

Click here to access and comment on the¬†Geometry Planning guide Units: Constructions Congruence Transformations & Similarity Right triangles & Coordinate Proof Applied Trigonometry & Solids Circles In the spirit of Geoff Krall's Problem Based Curriculum Maps, I attempted to organize my geometry curriculum and learning targets along with associated activities, tasks & lessons. In order … Continue reading Geometry Planning Guide

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Sprinkler System Design

After determining how to write the equations of circles through the Shell Center activity: Equations of Circles 1, my students needed to practice using equations of circles. I decided to find my high school on Google Maps and make a screenshot. I then imported the screenshot into Desmos and adjusted the size of the image … Continue reading Sprinkler System Design

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 138: Finishing golf ala Fawn

Since everyone had such a hard time last class, we started by watching this from 0:23 to 0:55 over and over and over. There was productive discussion. It helped. I will start with this and a discussion next time, maybe...I am struggling finding the balance of "helping" that results in productive struggle. In some classes … Continue reading Day 138: Finishing golf ala Fawn

Day 137: Application of Similar Triangles

Since Fawn's similar triangle lesson was so beautifully written here, I pretty much printed out her blog post and ran the class verbatim. I quickly realized that my students are not as enthusiastic problems solvers as Fawn's and it's because I don't let them struggle enough. I'm working on it. They struggle a little, but … Continue reading Day 137: Application of Similar Triangles