I've made numerous attempts at helping my geometry students understand the connections between scale factor, perimeter, and area of a polygon. My first attempt was an exploration. I wasn't pleased with the results. It was too challenging for my students who were not confident in calculating area and perimeter. Then I tried extending it by [...]
I spent way too much time on Vi Hart's YouTube channel last year. Her hexaflexagons intrigued me. I decided to see if I could harness the power of 18 equilateral triangles in a fun little package to help my students with some key concepts. First came my slope hexaflexagon. [...]
Here are the geometry assignments for the week of May 4th – May 10th, 2020. Monday: Watch the video at https://youtu.be/dyoyJB6Ihic and take notes on the notes sheet. Do the Arc Length assignment. When you’re finished, take the homework Quizizz at quizizz.com/join?gc=783139. Tuesday: Join me for the Zoom meeting Wednesday: Watch the video at https://youtu.be/kvdIBlI9GMY. And take notes on the notes sheet. Do the Area of Sectors assignment. Then enter your answers and check your [...]
Here are the geometry assignments for the week of April 27 – May 1, 2020. Monday: Try the Circles Exploration. If you get stuck, watch the video at https://youtu.be/VWOX7xoKBNU. And take notes on the Circles Exploration sheet. Tuesday: Do the Circles in a Coordinate Plane worksheet. Submit answers on this quizizz or go to joinmyquiz.com and type code 552413 and email your work to me. Wednesday: Watch the video at https://expl.ai/BHRHLAR and do the Area [...]
Here are the geometry assignments for the week of April 13 – April 17, 2020. Tuesday: Trig - Solving for Sides. You've seen this before break. Take out your notes and refresh your memory. Watch the video at https://youtu.be/PBc712YkfKc Take notes – notes sheet Do the worksheet Trig (Solving Sides). Set up equations and show your work. Submit answers on this quizizz and email your work [...]
Here are the geometry assignments for the week of April 6– April 10, 2020 and a suggested pacing guide. Monday: 45-45-90 Triangles - video Tuesday: 30-60-90 Triangles Wednesday: Week 2 Challenge Thursday: Quizizz - Click the link - https://quizizz.com/join?gc=373758 (or go to joinmyquiz.com and enter the code 373758) Make sure your username is your first and last name. Here are some tutorials that may be useful if you need help. 45-45-90 [...]
Several years of work are coming together nicely. Unfortunately, I still have tests to grade. There are so many properties for students to know and remember in the quadrilaterals unit of Geometry. I started by creating flash cards on two sheets of paper back to back. Students had to write the property based on the [...]
My regular geometry students have struggled with the concept of which side measures can form a triangle. I don't know if it's the wording of theorem - the sum of any two sides of a triangle must be greater than the third - there are a lot of math words there, or if it's that [...]
I remember being frustrated last year at about this time with my geometry students' performance on four questions on their circles test. The test was chronologically ordered in the way the material was presented so I was perplexed when they did poorly on the last section before review. It involved circles in the coordinate plane. Below are [...]
