Transition to university

Christian Lawson-Perfect on Solving linear simultaneous equations by elimination 8 years, 5 months ago

Saved a checkpoint:

I'd prefer it if you made sure that the solutions are always integers. Rounding errors are a distraction here. Generate the solutions first, then come up with a pair of independent equations.

I'm not sure about the way you've set out subtracting one equation from another - it's not obvious that the minus signs cancel out when there's a negative coefficient. This is one of the big problems that trips people up when doing this.

Be careful with, for example, "We have to multiply the entire first equation by 3, not just the x term to ensure we do not change the value of the equation." - an equation doesn't have a 'value'. You could instead say that you want to keep the same solution.

Right at the end of the advice, I don't like $8(5)$ for multiplication - $8 \times 5$ is much more conventional.

Christian Lawson-Perfect on Relative Frequency 8 years, 5 months ago

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Christian Lawson-Perfect on Relative Frequency 8 years, 5 months ago

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Looks good!

Christian Lawson-Perfect on Probabilities of certain and impossible events 8 years, 5 months ago

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Christian Lawson-Perfect on Probabilities of certain and impossible events 8 years, 5 months ago

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A nice simple question.

Hannah Aldous commented on Decimals to fractions 8 years, 5 months ago

question looks good, just a few little things

• question b only has one part so i is unnecessary (same in advice)
• advice for parts a, c and d when you do your subtraction make sure it is clear that you are subtracting the whole equation as it looks like you are just making your left hand side negative at the moment
• text on advice for a iv is centred whereas the rest of the advice isn't 
• text for the advice of part c is centred too
• part c advice needs a full stop after x= recurring number, before 'By multiplying...'
• for your advice for part c maybe include the fact that you are doing the subtraction to remove the recurring numbers
• the line beginning 'From this...' continues off the page so can not be read, perhaps because it is in LaTeX 
• I'd put a space between your final fraction and 'in it's fractional form

Christian Lawson-Perfect on Rounding and estimating calculations 8 years, 5 months ago

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Christian Lawson-Perfect on Rounding and estimating calculations 8 years, 5 months ago

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Lovely question!

Christian Lawson-Perfect on Combining Logarithm Rules to Solve Equations 8 years, 5 months ago

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Christian Lawson-Perfect on Combining Logarithm Rules to Solve Equations 8 years, 5 months ago

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This is fine. I had to add \left and \right around brackets in a couple of places so they stretch around the fractions inside.

Christian Lawson-Perfect on Addition and subtraction of fractions 8 years, 5 months ago

Gave some feedback: Has some problems

Christian Lawson-Perfect on Addition and subtraction of fractions 8 years, 5 months ago

Saved a checkpoint:

I've removed the "without a calculator" bit - I don't care how students add fractions, as long as they can do it!

The advice for parts b and c could be a lot shorter - say what's different from the previous part, how to deal with it, and then briefly show the working out.

Stanislav Duris on Weight of a scoop in two ice cream parlours 8 years, 5 months ago

Gave some feedback: Needs to be tested

Christian Lawson-Perfect on Using the Logarithm Equivalence $\log_ba=c \Longleftrightarrow a=b^c$ 8 years, 5 months ago

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Christian Lawson-Perfect on Using the Logarithm Equivalence $\log_ba=c \Longleftrightarrow a=b^c$ 8 years, 5 months ago

Saved a checkpoint:

I've changed the last part to a "choose several from a list" type, because it makes more sense.

I've also reworded the advice a bit.

Lauren Richards commented on Finding the highest common factor of two numbers 8 years, 5 months ago

- There is a slight problem with variable h in the table in that sometimes its divisors are not in the right order. 

Lauren Richards on Finding the highest common factor of two numbers 8 years, 5 months ago

Gave some feedback: Needs to be tested

Hannah Aldous on Decimals to fractions 8 years, 5 months ago

Gave some feedback: Has some problems

Elliott Fletcher commented on Straight line equation application: measuring sunflower height 8 years, 5 months ago

Lovely question, definitely one of my favourite questions so far. Just a few grammatical comments

In the statement you probably should put a hyphen between observation and B as you have for "Observation-A"

Main Parts

a) good (the graph looks really nice)

b) I would delete the should in the question here

In the first (top left) bullet point, "take" should be "taken"

In the bottom left bullet point, you could change "millimeters" to just mm if you wanted.

c) you write "3^th day" but this should be "3^rd day"

I don't think you need a colon at the end, i would just put a full stop

e) "The power goes to you head" should be "The power goes to your head".

I would put a "why" after hence and before "this".

Advice

a) I would put the equation to calculate c in the second paragraph on it's own line using display mode.

"point's" should be "points"

I would put the multiplications in brackets here.

c) i don't think you need the colon here

d) Again i don't think you need the colon here.

e) "oustide" should be "outside"

Hopefully this question will inspire many young students to become grass length consultants in the future!