Welcome to my 67th gems post. This is where I share the latest ideas and resources I've seen on Twitter. I used to write one of these posts every week but I now struggle to find the time, so this is my first gems post since November. I have some crackers for you today though!1. Polygons
Ed Southall's (@solvemymaths) first video is well worth a watch. It explores the terminology, etymology and structure of naming polygons. I'm now eagerly looking ahead to when I next teach geometry so I can share this with my students!
2. My Favourite No
I first watched this video years ago but I've never put it in a gems post before. Thanks to Stephen Godwin (@stevejodwin) for reminding me about it after it appeared in Doug Lemov's recent blog post 'My Favorite No: Mistaking Knowledge Problems for Skill Problems'. Do watch the video below - it features a brilliant activity for exploring misconceptions.
3. Primitives
I shared the lovely Furbles in Gems 21, but hadn't spotted the 'Primitives application' on the same website. This has been around for many years, but thanks to John G (@mathhombre) for recently sharing it on Twitter. This lovely interactive factorisation tool is really good for exploring numbers.
4. Euler's Number
Numberphile published a new video about e last week. I really enjoyed this video and plan to show it to my Year 13s next term.
5. Notepad Calculator
Colin Beveridge (@icecolbeveridge) tweeted about this excellent NotePad Calculator. I'm not sure whether I'll find it useful in the classroom but I love it anyway so thought it was worth sharing.
Update
I've published six blog posts since Gems 66. They're listed here in case you missed them:
- Highlights of 2016
- Merry #christmaths16
- Formative Assessment
- 5 Websites You Should Know... #4
- GCSE 9 - 1 Revision Resources
- New GCSE: Trigonometry Questions
Do check out Don Steward's blog too - he's published a lot of new resources lately.
You might also be interested in Dr Frost's revision advice for A level students and Colin Beveridge's exam technique tips for the new GCSE.
I'll leave you with this animation of the surface area of a sphere, shared by Damian Ainscough (@damianainscough).
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