|Things people do on Pi Day - Spiked Math|
I spotted foldable vertical number lines when reading Sarah Hagan's excellent blog Math = Love. I'm definitely going to use these next year - I'll try it out with my new Year 7s in September. They'll stick a vertical number line in the back of their exercise book. The number line can then be unfolded and referred to whenever it's helpful to do so. It's good to get students in the habit of using number lines, and I think that vertical number lines are more helpful than horizontal ones.
Speaking of number lines, this post about Open Number Lines by @mburnsmath is worth a read. I use number lines like this on the board all the time.
@Ms_Kmp's post 'Indexed Learning' which is about students numbering every page in their exercise books. The post describes the numerous advantages of page numbers - I particularly like the idea of students creating a topic index at the back of their book.
2. Parallel Line Mazes
I enjoyed @MathyMcMatherso's post 'Parallelogram Mazes & Introducing Proof'. It features resources for teaching angles in parallel lines like the maze shown below.
I often write about Don Steward's resources - his website is wonderful. Ed (@solvemymaths) arranged for Don Steward to run a workshop at Hudderfield University a couple of weeks ago and I was gutted I couldn't go. Thankfully Ed wrote a very helpful post which included Don's presentations and activities. Hannah (@missradders) also wrote a lovely post about the key things she took away from the workshop.
The 'reversing the question' activity below caused quite a stir on Twitter - it's a fantastic idea. Thanks to @PardoeMary we've managed to find the original source of the problem - the 'Bag of Flour' task was described by Alan Bell as an example of a ‘making up questions’ task in Mathematics Teaching Issue 118.
Fawn Nguyen's post about her experience using this activity with her 6th graders (equivalent to Year 7) is worth reading.
I like all the 'making up questions' material - here's another set of examples from Don's presentation:
Do read Hannah and Ed's posts about the other amazing stuff that Don Steward shared in his workshop.
4. Communication and Vocabulary
Are you following @ExplainingMaths on Twitter? He shares great teaching ideas. I like his sentence stems display which helps students to develop their communication skills.
World's Hardest Easy Geometry Problem which I wrote about in Gems 23 - he made an interactive display on the wall for students to have a go at.
My school doesn't normally do anything for Pi Day but this year we have a few things planned, including a pie baking competition, a treasure hunt and a Poetry Pi-Cital. The latter involves students writing and reciting a short poem about Pi, inspired by the poem at the start of this video:
Here's a few more Pi Day ideas that you might not have thought of:
- Pi recital competition. Prize for the student who recites the most digits of Pi.
- ‘Tell a maths teacher an interesting fact about Pi’
- Freehand circle drawing competition
- Make a giant Pi paper chain (a different colour for each number).
There's also two nice ideas in this post from @InteractMaths.
here). Do come and say hi.
Finally, here's some pictures of the fantastic work done by my Year 10s - I love my new circle theorems wall. It was an easy and enjoyable lesson to run - I just gave them paper plates, straws and pins and they got on with it!