Chris Graham

Chris Graham on Percentages and ratios - box of chocolates 8 years, 6 months ago

Gave some feedback: Has some problems

Chris Graham commented on Percentages and ratios - box of chocolates 8 years, 6 months ago

Nearly there...

In your advice, where you are simply inputting numbers into sentences, you can use "there were {} nutty", rather than "there were $\var{n}$ nutty". Inserting the number in LaTeX changes the font typeface, which is not necessary here. 

I would drop part (e) altogether on this one (probability) as it is a step beyond the core topics that you are assessing (ratios and percentages).

Chris Graham commented on Expand brackets and collect like terms 8 years, 6 months ago

typo: "algerbraic". Re-consider part b)

Chris Graham on Expand brackets and collect like terms 8 years, 6 months ago

Gave some feedback: Has some problems

Chris Graham on Substitute values into formulas 8 years, 6 months ago

Gave some feedback: Has some problems

Chris Graham commented on Substitute values into formulas 8 years, 6 months ago

In the equations for volume, the word volume itself should be in roman. 

The first part of the prompt to part (e) doesn't make sense, and the second part needs a comma after "Using the below equation".

Some additional punctuation of equations is required in the advice. And where you have in small, italic, "Rounding your answer to 1 decimal place", there is no need for this to be either small or italic in the advice. Grammatically, you've also gone from first person (plural) to second person.

Chris Graham on Converting between Mixed Numbers and Improper Fractions 8 years, 6 months ago

Gave some feedback: Has some problems

Chris Graham commented on Converting between Mixed Numbers and Improper Fractions 8 years, 6 months ago

'Which fraction is the odd one out?"... the first, because they are one digit numbers? 

I think it's too vague. "Select the fraction which is not equivilant" would be more precise, or if you want to keep the phrase because it's catchy: "Which is the odd one out? Select the fraction which is not equivilant."

In (c) and (d), include $=$ inside the LaTeX.

In the advice you have "time(s)", because the variable round could take the value 1. You could replace this text, making use of the jme function if: {if(rounds=1,"time","times")}.

Chris Graham on Using the Logarithm Equivalence $\log_ba=c \Longleftrightarrow a=b^c$ 8 years, 6 months ago

Gave some feedback: Has some problems

Chris Graham commented on Using the Logarithm Equivalence $\log_ba=c \Longleftrightarrow a=b^c$ 8 years, 6 months ago

$\log$ should be roman, rather than $log$ and the there's actually a command \log that you can use. Similarly with $\ln$, use \ln.

The statement could be used to offer an introduction to the topic (changing the subject of a an equation with logs).

 In the advice, for completeness I think you should include all of the solutions. If you don't want to include the same amount of detail, because there is nothing new to explain, then you could say "Similarly, ..." followed by one-line solutions. 

In (d) you reference i),ii)..., but this numbering is not used in the question itself. You also give out some definitions which are required. These should be placed into a step to give the student an opportunity to glean this information when they are attempting the question.