Andy
@andypmaths.bsky.social
A Level Maths tutor. Founder of thealevelmathstutor.co.uk
But what you perceive as an arm and a leg may just be a comfortable montly payment for millions of people. Leasing means you simply need to have a decent montly cash flow. And what's the point in owning a car that will only depreciate in value.
July 10, 2025 at 3:34 PM
But what you perceive as an arm and a leg may just be a comfortable montly payment for millions of people. Leasing means you simply need to have a decent montly cash flow. And what's the point in owning a car that will only depreciate in value.
But they're not eye wateringly expensive if you lease them.
July 10, 2025 at 8:57 AM
But they're not eye wateringly expensive if you lease them.
I would recommend investigating Miro's Education Plan. It certainly used to be free if you can prove you're a teacher (and I think it still is). You could create each student a board if you wanted to.
It's a good piece of software - all my tutoring team use it.
It's a good piece of software - all my tutoring team use it.
July 9, 2025 at 10:56 PM
I would recommend investigating Miro's Education Plan. It certainly used to be free if you can prove you're a teacher (and I think it still is). You could create each student a board if you wanted to.
It's a good piece of software - all my tutoring team use it.
It's a good piece of software - all my tutoring team use it.
4. Writing the conditional probability formula with P(A|B) as the subject
5. Adding in the PMCC CVs that they obviously forgot the first time round
Note: I don't actually think they'll do these things - that would be too sensible
2/2
5. Adding in the PMCC CVs that they obviously forgot the first time round
Note: I don't actually think they'll do these things - that would be too sensible
2/2
July 9, 2025 at 6:33 AM
4. Writing the conditional probability formula with P(A|B) as the subject
5. Adding in the PMCC CVs that they obviously forgot the first time round
Note: I don't actually think they'll do these things - that would be too sensible
2/2
5. Adding in the PMCC CVs that they obviously forgot the first time round
Note: I don't actually think they'll do these things - that would be too sensible
2/2
1. Getting rid of that stupid dot in the binomial formula that looks like a decimal point.
2. Writing the quotient rule in terms of u and v
3. Putting in the formula for independent events
1/2
2. Writing the quotient rule in terms of u and v
3. Putting in the formula for independent events
1/2
July 9, 2025 at 6:33 AM
1. Getting rid of that stupid dot in the binomial formula that looks like a decimal point.
2. Writing the quotient rule in terms of u and v
3. Putting in the formula for independent events
1/2
2. Writing the quotient rule in terms of u and v
3. Putting in the formula for independent events
1/2
Interesting. Can you find out how this calculator evaluates tan(2)?
June 20, 2025 at 4:30 PM
Interesting. Can you find out how this calculator evaluates tan(2)?
Normal way to make modified papers:
1. Select all.
2. Change font size.
2025 way:
1. Select all.
2. Change font size.
3. Save paper 1.doc as paper2.doc
4. Claim that's what you meant to do.
1. Select all.
2. Change font size.
2025 way:
1. Select all.
2. Change font size.
3. Save paper 1.doc as paper2.doc
4. Claim that's what you meant to do.
June 17, 2025 at 1:27 PM
Normal way to make modified papers:
1. Select all.
2. Change font size.
2025 way:
1. Select all.
2. Change font size.
3. Save paper 1.doc as paper2.doc
4. Claim that's what you meant to do.
1. Select all.
2. Change font size.
2025 way:
1. Select all.
2. Change font size.
3. Save paper 1.doc as paper2.doc
4. Claim that's what you meant to do.
I also find using equating coefficients for polynomial division allows me to make links with other topics that require equating coefficients, like rsin(x+alpha).
June 17, 2025 at 1:08 PM
I also find using equating coefficients for polynomial division allows me to make links with other topics that require equating coefficients, like rsin(x+alpha).
I teach students to equate coefficients. Mostly in their head for more able students. In my experience, the reason the majority teach long division is because that's the way they were shown at school.
June 17, 2025 at 1:06 PM
I teach students to equate coefficients. Mostly in their head for more able students. In my experience, the reason the majority teach long division is because that's the way they were shown at school.
Not as far as I am aware. In fact I'd say it's inefficient as it contains redundant steps which you can avoid if you set it up similar to partial fractions and equate coefficients.
June 17, 2025 at 1:03 PM
Not as far as I am aware. In fact I'd say it's inefficient as it contains redundant steps which you can avoid if you set it up similar to partial fractions and equate coefficients.
Unfortunately, it requires a login.
June 10, 2025 at 8:45 AM
Unfortunately, it requires a login.
I tutor around 30 hours a week across all 4 exam boards, so have a bit of knowledge of the differences between specs. I also have access to a comprehensive, searchable questions by topic database of all past paper questions.
June 10, 2025 at 7:55 AM
I tutor around 30 hours a week across all 4 exam boards, so have a bit of knowledge of the differences between specs. I also have access to a comprehensive, searchable questions by topic database of all past paper questions.
I'm going for "Questions on stuff that hasn't been on paper 1 papers".
June 8, 2025 at 4:45 PM
I'm going for "Questions on stuff that hasn't been on paper 1 papers".
The Numworks is a lot better than the CG50. The CG50 is a bit like polynomial long division - everyone recommends it because it's all they know, but it's actually a bit naff compared to the alternatives.
June 1, 2025 at 12:01 AM
The Numworks is a lot better than the CG50. The CG50 is a bit like polynomial long division - everyone recommends it because it's all they know, but it's actually a bit naff compared to the alternatives.
Incidentally, the example above is called a point of undulation. I find that the graph of the second derivate (purple in this graph) nicely shows how the second derivative can be zero without a change of sign.
May 31, 2025 at 11:57 PM
Incidentally, the example above is called a point of undulation. I find that the graph of the second derivate (purple in this graph) nicely shows how the second derivative can be zero without a change of sign.
If it's Edexcel or OCR it will be PAYE
May 7, 2025 at 7:14 PM
If it's Edexcel or OCR it will be PAYE
Are we sure this isn't just correlation, rather than causation? Given that students who take further maths are generally much stronger mathematicians to start with, couldn't an equally valid conclusion be "if you want to be good at Maths A level, be good at Maths GCSE"?
May 4, 2025 at 8:50 PM
Are we sure this isn't just correlation, rather than causation? Given that students who take further maths are generally much stronger mathematicians to start with, couldn't an equally valid conclusion be "if you want to be good at Maths A level, be good at Maths GCSE"?
The original implication seems to be that it is unfair that the plasterer should be earning more than the supply teacher. I am putting forward an argument that there are various factors that in my opinion do justify it.
If this is not the case, I am not sure why it is an 'interesting comparison'.
If this is not the case, I am not sure why it is an 'interesting comparison'.
March 16, 2025 at 10:02 PM
The original implication seems to be that it is unfair that the plasterer should be earning more than the supply teacher. I am putting forward an argument that there are various factors that in my opinion do justify it.
If this is not the case, I am not sure why it is an 'interesting comparison'.
If this is not the case, I am not sure why it is an 'interesting comparison'.
It's different because the supply teacher just writes their name on a list and then gets offered work. The plasterer has to advertise, get his name out there and if he doesn't do a quality job it hurts his chances in the future.
I think some people underestimate how hard it is being self-employed.
I think some people underestimate how hard it is being self-employed.
March 16, 2025 at 9:37 PM
It's different because the supply teacher just writes their name on a list and then gets offered work. The plasterer has to advertise, get his name out there and if he doesn't do a quality job it hurts his chances in the future.
I think some people underestimate how hard it is being self-employed.
I think some people underestimate how hard it is being self-employed.
Your plasterer likely has to supply his own tools, has his own insurance, has all the risks associated with being self employed, has to aquire all his own leads, has to go out to quote for jobs he might not get and isn't being handed work on a plate. Seems reasonable that he's charging £250 to me.
March 16, 2025 at 3:35 PM
Your plasterer likely has to supply his own tools, has his own insurance, has all the risks associated with being self employed, has to aquire all his own leads, has to go out to quote for jobs he might not get and isn't being handed work on a plate. Seems reasonable that he's charging £250 to me.
As a side note, the fact that you can edit this value is also a huge advantage with the CG50 when calculating critical regions for hypothesis tests, especially when using the right tail.
March 14, 2025 at 12:47 PM
As a side note, the fact that you can edit this value is also a huge advantage with the CG50 when calculating critical regions for hypothesis tests, especially when using the right tail.
Rob is correct. Some bright spark at Casio thought it would be a good idea to confuse students all over the world by truncating. Use OPTN -> Edit (F1) while the value is highlighted to see a more precise value.
March 14, 2025 at 12:46 PM
Rob is correct. Some bright spark at Casio thought it would be a good idea to confuse students all over the world by truncating. Use OPTN -> Edit (F1) while the value is highlighted to see a more precise value.
OCR people have to use this. I do not like it because I can't draw a man in a cave and say the curve is concave.
February 27, 2025 at 5:57 PM
OCR people have to use this. I do not like it because I can't draw a man in a cave and say the curve is concave.
I suppose that's true. But then they end up using the 'other one' for literally every new specification exam question from every exam board.
I find it easier to just tell students to ignore it.
I find it easier to just tell students to ignore it.
February 23, 2025 at 4:15 PM
I suppose that's true. But then they end up using the 'other one' for literally every new specification exam question from every exam board.
I find it easier to just tell students to ignore it.
I find it easier to just tell students to ignore it.
I'd say it's about as useful as this:
February 23, 2025 at 12:22 PM
I'd say it's about as useful as this: