Desmos has long been a popular name in the world of math educators. Their free, online graphing calculator is simply beautiful, and since it’s easy and works on any device, it’s perfect for the classroom. They even have a a free Android or iOS app for it, along with excellent classroom activities.
But now they’ve released a new tool specifically for geometry, and it’s just as amazing. Although not as fully featured as a website like Geogebra, Desmos Geometry is still a great resource for the secondary math classroom. It’s designed to help students understand geometry concepts through the use of drawing and diagram manipulation tools. There’s a simple tutorial video, along with a page of resources to help master the tool. And clicking the “three lines” icon in the top left-hand corner of the program will provide a number of powerful examples.
Because Desmos is so universally liked and adopted by schools around the world, there will soon be a variety of lesson plans and activities designed by teachers that go along with this new resource. That makes it an even more powerful tool.
While I am not a math expert, I still had fun playing with Desmos Geometry. And I think that, if someone more knowledgeable were there to help me, I could really learn a lot about the subject while experimenting. The tool enables students to construct and test their own theories about geometry, which is a powerful and engaging way to learn. And that’s what technology is best at, isn’t it?


Kahoot has upped its game by adding a Team Mode. Students get into teams with just one device between them. The teacher opens up a Kahoot! and now has the choice of selecting between Classic and Team Mode. Team captains (kids holding the devices) enter their team’s name and their players’ nicknames. Then they begin the game. This will be great for helping kids learn to work together or for those classrooms where devices are limited.
At the ISTE conference in San Antonio, Kahoot! unveiled a new mobile app for the game. What’s great about the app is that now both the questions and the answers will appear on the student screens. (Before, students had to look at the projected image in the classroom to see the question and then answer it on their own devices.) It also includes Challenges that can be issued by the teacher or by students to each. You can preview the new app (available in both Android and iOS) by signing up to be a