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Jonathan Hall @studymaths.bsky.social · 3d

A very windy 6k for me. Lots of branches down to hurdle.

Jonathan Hall @studymaths.bsky.social · 4d

Arbitrary and necessary mathematics.

One of those most important ideas to consider when planning and delivering maths lessons.

Here's my one-slide summary based on Dave Hewitt's article here:
www.lboro.ac.uk/media/media/...

Mathematical conventions must be explicitly taught, but mathematical ideas can be discovered or deduced.
Dave Hewitt refers to these as arbitrary and necessary.

A couple of tasks to bring about awareness of the properties of odd and even numbers.

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Jonathan Hall @studymaths.bsky.social · 4d

I used this task this week to introduce Y10 to simultaneous equations.

Drawing attention to important decisions that need to be made.

#MathsToday

"What's the same and what's different?"
4 pairs of simultaneous equations with very similar coefficients.

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Jonathan Hall @studymaths.bsky.social · 5d

Yet.

#GrowthMindset

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Jonathan Hall @studymaths.bsky.social · 5d

I assumed this was a running post at first glance.

Happy weekend!

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Reposted by Jonathan Hall

Karen @karenshancock.bsky.social · 9d

In #MathsToday (ish - probably last week actually) some activities with Surds.
Answers and better quality versions on the website links.

kshancock.co.uk/lessonresour...

kshancock.co.uk/lessonresour...

Maths worksheet titled 'Multiplying surds'. Students are instructed to pair surds from a 3x4 grid (including values like √7, 2√3, √48, etc.) to match answers in boxes below (e.g., 14, 6√7, 20√7, 144, 60√2, 21√10). A crossed-out calculator icon indicates calculators are not allowed.

Maths worksheet titled 'Fully factorise'. It includes an example: √2y − √50x = √2(y − 5x), followed by four expressions to factorise: √3x + √75, √98 + 4√2x, √48 + √12x, and √32y² + √18xy."

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Jonathan Hall @studymaths.bsky.social · 11d

I wasn’t going to, but yet again your post made me get out of the door. Thanks!

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Jonathan Hall @studymaths.bsky.social · 13d

“Sir, let me cook” is apparently slang for “excuse me while I try and work this out”

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Jonathan Hall @studymaths.bsky.social · 13d

Update: You can now create custom tests on the full-sized version of the KS2 arithmetic generator.

This quick video shows how:

mathsbot.com/primary/ks2

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Jonathan Hall @studymaths.bsky.social · 16d

Oops, sorry! I’ll turn the contrast down in future.

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Jonathan Hall @studymaths.bsky.social · 16d

In #MathsToday I did this as a starter on estimation.

With the aim of getting pupils to consider which counters are the 'significant' ones.

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Reposted by Jonathan Hall

gerard mcn @germinalmaths.bsky.social · 17d

Which One Doesn’t Belong?
Mathsbot Rods courtesy of @studymaths.bsky.social
#WODB

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Reposted by Jonathan Hall

Josh Wright @jwrightmaths.bsky.social · 18d

If you want to see my nonsense in person and hate teaching significant figures, this is the session for you!

Complete Mathematics @lasalleed.bsky.social · 18d

📣 #MathsConf39: The Language of Significance & Standard Form with Josh Wright (@jwrightmaths.bsky.social)

Unpack misconceptions, explore clearer teaching methods & rethink shortcuts to make these tricky topics stick.

completemaths.com/community/ma...

#UKMathsChat

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Jonathan Hall @studymaths.bsky.social · 18d

I’m sure I’ll be right as rain by Monday morning.

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Jonathan Hall @studymaths.bsky.social · 18d

The start of term germs have got me so probably no run this weekend. 🤧

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Jonathan Hall @studymaths.bsky.social · 18d

After they got good at decomposing numbers, I used this to introduce the idea of finding LCMs efficiently.

#MathsToday

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Jonathan Hall @studymaths.bsky.social · 19d

In a few years time you could ask them “what surds can you draw on square grid?” which links nicely to this task.

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Jonathan Hall @studymaths.bsky.social · 20d

@bennewmark.bsky.social

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Jonathan Hall @studymaths.bsky.social · 20d

It worked for me, but maybe because all your workshops have quirky titles.

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Reposted by Jonathan Hall

Complete Mathematics @lasalleed.bsky.social · 20d

📣 #MathsConf39: The Best That Has Been Taught and Shared with Nathan Day (@nathanday314)

Explore all-time great maths tasks, why they work, and how to adapt or design your own to enrich lessons & inspire learners.

completemaths.com/community/ma...

#UKMathsChat

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Jonathan Hall @studymaths.bsky.social · 24d

Me too! Not happy but I’m moving with the times.

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Jonathan Hall @studymaths.bsky.social · 24d

In #MathsTomorrow I'm going to try and develop a sense of why we round numbers.

Any good ones to add to my list?

There were 88,966 people at the world cup final.

The moon is 225,622 miles from Earth.

The battle of Hastings was in 1066.

The GBP to USD exchange rate is £1 = $1.25894.

The speed of light is 299,792,458 m/s.

The first ten digit of Pi are 3.141592653

136 μg of poison dart frog venom is lethal.

There are 2,618 Greggs in the UK.

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Jonathan Hall @studymaths.bsky.social · 24d

It's really important to learn to walk before you try and run.

Jonathan Hall @studymaths.bsky.social · 24d

I used this differently this week. I put a 1000 seconds on the clock and then used it with MWB's with the class.

I think it worked really well and was a fun way to introduce prime factorisation.

mathsbot.com/puzzles/prim... #MathsToday

Prime Factory!

Prime Factor! A different way to pracitse your times tables.

mathsbot.com

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Jonathan Hall @studymaths.bsky.social · 25d

In #MathsToday I gave my 7yo the calculation in the box at the top.

This was his method.

78+36+29 solved using a slightly unusual column method.

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