Nathan Day

@nathanday.bsky.social

Maths (and Computer Science) teacher. Task interweaver. Daydream believer. https://interwovenmaths.com New! https://classduels.com/maths/ #EduSky #UKTeaching

I'm on my way to Lincoln Bishop University to talk about all things Interweaving at the East Midlands East Maths Hub Annual Conference. If you'd be interested in me doing a workshop or similar at your school, conference, university, work group, etc., just reach out! interwovenmaths.com/cpd

Title slide for Don’t Stop Interweavin’, a CPD presentation about Interweaving.Slide comparing six proportional reasoning problems and asking which one is the odd one out.Slide showing several right-angled triangle questions with equivalent side-length structures in different forms.Slide showing six multiplication-related questions built around the fact that 32 × 45 = 1440.

Here's something I've been working quite hard on recently: classduels.com/maths/ A Maths game featuring: - two-player (split screen, can be done on a interactive whiteboard) and single-player modes - 50+ topics across KS3-KS5 - a version for the Australian curriculum: classduels.com/maths/au/ 😉

Maths Revision Quizzes | Class Duels

Practise maths with free Class Duels revision quizzes for KS3, GCSE and A Level, covering Negatives, Rounding, Fractions, Percentages and more.

classduels.com

A few weeks ago, I asked for different ways a student might notice they've made a mistake. I'd now love your ideas for techniques that can students use to check their answers. e.g. - substitute a solution back in to check it works - redo a question with a different method bsky.app/profile/nath...

Nathan Day@nathanday.bsky.social · 5mo ago

What warning signs could students pick up on that they might have gone wrong in an answer? e.g. - an unexpected negative/decimal answer, - an answer requiring many more/fewer steps than the number of marks would suggest, - an answer that would be weird in context (e.g. a taxi costing £3000) ...

What warning signs could students pick up on that they might have gone wrong in an answer? e.g. - an unexpected negative/decimal answer, - an answer requiring many more/fewer steps than the number of marks would suggest, - an answer that would be weird in context (e.g. a taxi costing £3000) ...

'Christmaths Carols' has had a big upgrade for this year. Now featuring 12 different songs, and recordings with my slightly dodgy piano and vocals! interwovenmaths.com/christmaths I'm looking forward to having a big sing-along with them in school later this week.

Christmaths Carols - Interwoven Maths

Full Lyrics Fairytale of Arboretum Street (by Mr Day) O Sum All Your Data (by Madeline Barnicle, adapted by Mr Day) Hark! The Herald Angles

interwovenmaths.com

Nathan Day@nathanday.bsky.social · 2y ago

In #MathsToday, I did some organising for next week's school 'Christmaths Carols' sing-along. The set list is slowly growing, thanks to songs from @icecolbeveridge.mathstodon.xyz.ap.brid.gy, @alisonkiddle.bsky.social and @realityminus3.bsky.social. Suggestions and contributions very much welcomed!

A screenshot showing Christmaths Carols song titles:

1. Sin on Cos Can Turn Into Tan
2. Rudolph the Statistician
3. The Twelve Days of Newton
4. O Sum All Your Data
5. Hark! The Herald Angles Sing
6. For Cosine, Tan and Sine

Used @nathanday.bsky.social ’s sum-product(-difference-quotient) tables in an intervention session with Y10 in #MathsToday to support their factorisation of quadratics with negatives. Was really helpful to isolate the step of considering all the sign combos! 🤩 interwovenmaths.com/four-ops-tab...

Four Operations Completion Tables - Interwoven Maths

by Nathan Day (@nathanday314) https://twitter.com/hashtag/FourOpsTables PPT Download PDF Download

interwovenmaths.com

Just gave this a rather significant visual upgrade. It's now quite colourful, matching the textbooks! I've also added in totals, but they tend to be off by a couple of marks from the official ones as they are just the sums of the notional component boundaries. interwovenmaths.com/_GradeBounda...

A screenshot of a website showing grade boundaries for different Maths and Further Maths papers.
Nathan Day@nathanday.bsky.social · 12mo ago

FYI, I have updated my Edexcel Grade Boundaries page: interwovenmaths.com/_GradeBounda... Some interesting Further Maths component-level boundaries!

Calling all Maths teachers! What are some of your all-time great tasks for secondary Maths? Ones that could have their place in any curriculum, one that should be studied in PGCE courses, ones that started whole new genres of tasks... ... or just ones you really like. (see some of mine below)

In #MathsToday, Year 10 enjoying having a go at this Quadratics Always/Sometimes/Never task (which I did as a card sort in pairs). It was really interesting to tease out the subtleties, look at different edge cases, and keep bringing things back to the graphs.

Always? Sometimes? Never?

x^2 + Ax + B = (x+c)^2+8

1. C is less than A.
2. The vertex has an x-coordinate of 8.
3. B is less than A.
4. If C is an integer, so is A.
5. If A is an integer, so is B.
6. B is greater than 8.
7. If you know B, you can work out A and C.
8. The quadratic has two roots.
9. The minimum valueof the quadratic is 8.
10. If you know A, you can work out B and C.Printable version of the activities, to be cut up and used as a card sort.