Sam Blatherwick
@blatherwicksam.bsky.social
Head of maths, head full of maths. In the corner of the fox county.
Ks5 homework, fortnightly. Assessments for all key stages, every now and then.
November 8, 2025 at 10:39 PM
Ks5 homework, fortnightly. Assessments for all key stages, every now and then.
I guess the good old "the proof is trivial" is this
November 8, 2025 at 7:02 AM
I guess the good old "the proof is trivial" is this
Should move to A-level (hides)
November 5, 2025 at 8:46 PM
Should move to A-level (hides)
sometimes you just need to spend a load of time on stuff and acknowledge it just needs patience esp with LPA
November 3, 2025 at 8:33 PM
sometimes you just need to spend a load of time on stuff and acknowledge it just needs patience esp with LPA
Later in lesson I gave them f(x)=(x²-1)/(x²+1), {x:x>0} to find the inverse function of
October 27, 2025 at 7:45 PM
Later in lesson I gave them f(x)=(x²-1)/(x²+1), {x:x>0} to find the inverse function of
do you think that's your own preferences or do you think there's a hierarchy of loveliness?
October 27, 2025 at 3:44 PM
do you think that's your own preferences or do you think there's a hierarchy of loveliness?
Here's mine. Was a genuine delight to see angle addition formulae in the wild 🤣
October 26, 2025 at 6:21 PM
Here's mine. Was a genuine delight to see angle addition formulae in the wild 🤣
Reposted by Sam Blatherwick
Circle(s) is the key, I think!
It seems like we don't even need those two angles (a, b) to be equal.
In this diagram, the shaded triangles are congruent (SAS) and so both bases are 5root2.
[Seems too simple - am I missing something??]
It seems like we don't even need those two angles (a, b) to be equal.
In this diagram, the shaded triangles are congruent (SAS) and so both bases are 5root2.
[Seems too simple - am I missing something??]
October 26, 2025 at 5:56 PM
Circle(s) is the key, I think!
It seems like we don't even need those two angles (a, b) to be equal.
In this diagram, the shaded triangles are congruent (SAS) and so both bases are 5root2.
[Seems too simple - am I missing something??]
It seems like we don't even need those two angles (a, b) to be equal.
In this diagram, the shaded triangles are congruent (SAS) and so both bases are 5root2.
[Seems too simple - am I missing something??]
This is really nice!
October 26, 2025 at 6:02 PM
This is really nice!
pentagon has 5 sides...
October 25, 2025 at 1:11 PM
pentagon has 5 sides...
Then it started pumping all sorts of bile into the timeline and the Southport riots and I was done
October 21, 2025 at 6:45 PM
Then it started pumping all sorts of bile into the timeline and the Southport riots and I was done
When he took over my engagements just sunk... went from about 200 likes every time i put a resource out to barely in the teens. It's completely useless.
October 21, 2025 at 6:44 PM
When he took over my engagements just sunk... went from about 200 likes every time i put a resource out to barely in the teens. It's completely useless.
How do you even begin to achieve this?
October 21, 2025 at 3:14 PM
How do you even begin to achieve this?
The follow up in my head was what is one quarter, three quarters of, and I actually love this answer and the generalisation that ensues
October 19, 2025 at 9:19 PM
The follow up in my head was what is one quarter, three quarters of, and I actually love this answer and the generalisation that ensues
This is awesome
October 18, 2025 at 5:52 AM
This is awesome