I was on Twitter one night recently (that never happens) and someone replied to one of my tweets, encouraging me to look at Richard Thiessen’s postsĀ at aimsedu.org. So, I did. What caught my eye, and my imagination, was the O’Beirne Puzzle. So cool! Last night, I made my own, with my amazing husband’s help....
Read more →Woo hoo – the Twitter Bird is my sketch! See it live at http://www.geogebratube.org.* *Addendum – Glad I took a screen recording. It’s already been replaced. Bye, Twitter Bird. š
Read more →I’ve been writing lessons about transformations, using GeoGebra in every unit, and having fun with it! Last year’s Unit Performance Task was a little, um, boring, so I’ve been thinking about how I could make it more fun and more open-ended. Here’s what I’m thinking. Students must use one or more of the transformation...
Read more →In a minute, you’ll see an image – move the blue dot to reveal more tiles. If it doesn’t open, click here. How many tiles do you need to see to recognize the image? This is the result of a collaboration between me andĀ Hannu Korhonen, a fellow member of the GeoGebra group on LinkedIn....
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