Mark Crossley (@mrmathsteacher) 's Twitter Profile
Mark Crossley

@mrmathsteacher

UK Maths teacher.

ID: 414200650

calendar_today16-11-2011 19:15:53

4,4K Tweet

4,4K Followers

408 Following

Tom Bennett OBE (@tombennett71) 's Twitter Profile Photo

Having a behaviour policy is useless unless: 1. Everyone knows what it is 2. Everyone knows what *they* are supposed to do to uphold it 3. Everyone knows *how* to implement it. 4. Everyone actually does it. If 1-4 aren’t happening, then it may as well be written inside a

Mark Crossley (@mrmathsteacher) 's Twitter Profile Photo

Exam markers - if a student wrote a number backwards, but clearly recognisable as the number is should be, would it be marked as correct or incorrect?

Adam Boxer (@adamboxer1) 's Twitter Profile Photo

For years teachers have been gaslit on behaviour by the Educational Intelligentsia. We've been told that it's not a big deal, and if it were a big deal it would be our fault for not being engaging enough or relatable enough or we don't understand trauma, or SEND or any host of

Adam Boxer (@adamboxer1) 's Twitter Profile Photo

Phrases I hear a lot in schools and always challenge: 1. Quality assurance First, aesthetically this term grates on me. It gives me managerial vibes - people wandering round in grey suits with clipboards. Second, my basic position is that you should assume that your teachers

Adam Boxer (@adamboxer1) 's Twitter Profile Photo

If you're one of the school leaders in the increasingly small number of schools where phones are out and used on site, stop whatever priority it is you're working on and ban the phones. No excuses, it can and should be done.

Daniel Buck, “Youngest Old Man in Ed Reform” (@mrdanielbuck) 's Twitter Profile Photo

Results on students in a new study of smartphone bans at 477 middle schools: - Fewer psychiatric consultations - Lower rates of bullying - Higher GPAs and test scores - Results were strongest for girls and schools with the strictest bans Phones don't belong in classrooms

Results on students in a new study of smartphone bans at 477 middle schools:
 - Fewer psychiatric consultations
 - Lower rates of bullying
 - Higher GPAs and test scores
 - Results were strongest for girls and schools with the strictest bans

Phones don't belong in classrooms
Mark Crossley (@mrmathsteacher) 's Twitter Profile Photo

Strictly is a sensory overload this week. The quiet conversational parts followed by an overly loud studio audience audio is too much for me.

Mark Crossley (@mrmathsteacher) 's Twitter Profile Photo

20 years of teaching maths before discovering why we have the two different set-squares in a maths set. Together they allow for construction of every angle in multiples of 15° from 15° to 180°. Picture found from Facebook - not mine.

20 years of teaching maths before discovering why we have the two different set-squares in a maths set. Together they allow for construction of every angle in multiples of 15° from 15° to 180°.
Picture found from Facebook - not mine.
NCETM (@ncetm) 's Twitter Profile Photo

📢 Secondary maths teachers: have your say! NCETM's Charlie Stripp & Carol Knights weigh in on assessment reform. Don’t miss Part 2 of their blog and join the Curriculum & Assessment call for evidence before it closes on 22 Nov! Make your voice count 👉 ncetm.org.uk/features/align…

Mark Crossley (@mrmathsteacher) 's Twitter Profile Photo

I always work out the proportion of left handed pupils in top set maths groups vs lower maths groups I teach. The UK has ~12.24% l/h people. Every top set I've taught or observed has been between 16% and 20% l/h. My sample size is too small. Has anyone else noticed this?

Mark Crossley (@mrmathsteacher) 's Twitter Profile Photo

Can/Do Ofsted ask classroom teachers for seating plans that identify PP/SEND/EAL, and if so, should these be provided to them?

Mark Crossley (@mrmathsteacher) 's Twitter Profile Photo

This is interesting: schoolsweek.co.uk/ministers-ask-… I wonder what the outcome will be - particularly the directed/undirected time review.