Dan F
@finlaymaths.bsky.social
Northumberland based. Oxford Maths graduate. Ex teacher. Enjoy seeing maths questions from different counties.
Also this method for factorising a non-monic quadratic. It turns it into a monic quadratic but in terms of a different variable.
Lots of students would write y^2-2y-120 and factorise, change for 8x and divide by 8. But they didn't really know why. This was always the missing jigsaw piece for them.
Lots of students would write y^2-2y-120 and factorise, change for 8x and divide by 8. But they didn't really know why. This was always the missing jigsaw piece for them.
September 29, 2025 at 4:41 PM
Also this method for factorising a non-monic quadratic. It turns it into a monic quadratic but in terms of a different variable.
Lots of students would write y^2-2y-120 and factorise, change for 8x and divide by 8. But they didn't really know why. This was always the missing jigsaw piece for them.
Lots of students would write y^2-2y-120 and factorise, change for 8x and divide by 8. But they didn't really know why. This was always the missing jigsaw piece for them.
Had a great get-together with my team on maths. Even found time to discuss different methods.
It reminded me of a method to factorise a monic quadratic without having to magic up two numbers. One of my previous year 12 students loved it as it took the guesswork away.
It reminded me of a method to factorise a monic quadratic without having to magic up two numbers. One of my previous year 12 students loved it as it took the guesswork away.
September 29, 2025 at 4:37 PM
Had a great get-together with my team on maths. Even found time to discuss different methods.
It reminded me of a method to factorise a monic quadratic without having to magic up two numbers. One of my previous year 12 students loved it as it took the guesswork away.
It reminded me of a method to factorise a monic quadratic without having to magic up two numbers. One of my previous year 12 students loved it as it took the guesswork away.
Does anybody else find the decimal points annoying on WJEC papers? They look like multiplication dot signs.
August 21, 2025 at 7:03 AM
Does anybody else find the decimal points annoying on WJEC papers? They look like multiplication dot signs.
I love these kinds of debates. They show that there are still some ambiguities in maths around some symbols.
How would you view it if it were 6÷2(x+1)?
What about 6÷2x?
If it were 6÷2×(1+2), I think a lot of the ambiguity would disappear.
How would you view it if it were 6÷2(x+1)?
What about 6÷2x?
If it were 6÷2×(1+2), I think a lot of the ambiguity would disappear.
July 9, 2025 at 10:08 AM
I love these kinds of debates. They show that there are still some ambiguities in maths around some symbols.
How would you view it if it were 6÷2(x+1)?
What about 6÷2x?
If it were 6÷2×(1+2), I think a lot of the ambiguity would disappear.
How would you view it if it were 6÷2(x+1)?
What about 6÷2x?
If it were 6÷2×(1+2), I think a lot of the ambiguity would disappear.
This is from this year's AP Calculus BC exam. I wonder if A Level students would be able to tackle it.
May 23, 2025 at 6:48 AM
This is from this year's AP Calculus BC exam. I wonder if A Level students would be able to tackle it.
This is a 2 mark question from CBSE Grade XII Applied Maths paper. I'm not ashamed to admit I had no idea how to integrate that!
April 19, 2025 at 11:40 AM
This is a 2 mark question from CBSE Grade XII Applied Maths paper. I'm not ashamed to admit I had no idea how to integrate that!