^{th}gems post. This is where I share some of the latest news, ideas and resources for maths teachers.

**1. Entry Level Maths**

**2. Make Your Own Codebreaker**

@PiXLMattTheApp shared an activity generator which gives teachers the opportunity to create their own codebreaker tasks. Select a topic and write a joke or sentence to encode. It's very easy to use. This is one of a range of tools on mathswhiteboard.com that are worth checking out.

**3. Oops, I Forgot!**

I like this idea shared by @fawnpnguyen.

Been doing "Oops, I forgot" (OIF) routines. I haven't seen any T do this other than @NatBanting at his session.

— Fawn Nguyen (@fawnpnguyen) October 13, 2021

Write 2 fractions that =1. Then, OIF, the denominators need to be diff...OIF, 1 denominator is 2-digit, etc.

It has layers [literally] that I really like.

Read the thread for more information.

For an idea of how it works: you read a series of instructions to students while they use mini-whiteboards and adapt their answer each time. For example:

"Sketch a quadrilateral"

"Oops, I forgot - it should have four right angles"

"Oops, I forgot - it should have an area of 24".

"Oops, I forgot - it should have a perimeter greater than 24".

**4. Linked Maths**

**5. Resources**

Thanks to @jshmtn for sharing a lesson on index laws with lots of good ideas to borrow. I never thought of using pi as a base!

**Update**

Half term has finally arrived, much to everyone's relief. My school gets a two week October half term (I know, we're very lucky) but my daughters only get one week off. So I've had a week to myself - it's the only week in the entire year that I get a little bit of 'me time' (in between dropping them off and picking them up from school), so it does wonders for my mental health. As well as taking a bit of time to chill, I also used this week to contribute to some discussions about maths education. On Monday I attended an MEI Curriculum Committee meeting, and on Tuesday I participated in a Sheffield Hallam Uni/Royal Society roundtable on textbooks and curriculum materials. On Wednesday morning I chatted to Julia Smith about methods, and in the afternoon I recorded a new Topics in Depth CPD workshop on angles in polygons for Lumen (watch this space!). On Thursday evening my husband and I went to see Harry Baker perform, which was absolutely lovely. Harry is a mathematician and poet - I must book him to come and speak at my school.

Did you see my latest blog post? I wrote about curriculum sequencing and shared the slides from my recent conference session.

Speaking of conferences, you only have a couple more weeks to sign up to speak at the MA Conference which is taking place between 12th and 14th April 2022. I really encourage teachers to propose a workshop, even if you've not delivered at a conference before. The MA's 2021 online conference was a huge success. The beauty of online conferences is that they are widely accessible - people who are unable to attend in-person events can easily participate. In 2022, two days of the MA Conference will take place online and the final day will take place in person in Stratford-Upon-Avon. I plan to attend both the online and in-person days. In fact, I'm delivering one of the keynotes.

This is the task that caused a Year 8 to ask me, "are you a psychopath?" last week.

— Mr Mansbridge (@mansbridgemaths) October 18, 2021

There's no better endorsement than that. pic.twitter.com/Y0xEK7v6Ej

If you're on half term this week, have a good one!

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