Aiden McCall

Aiden McCall commented on Rationalising the denominator - surds 7 years, 5 months ago

a) On my first attempt of the question, I had received the same question for parts i) & ii). This can be fixed with except in your random variables so the same two values do not occur.

b) Everything fine.

c) I'm not sure if you need a semi-colon if you have an 'and' as this does not create two main clauses. When testing this question it always came up as the same values also. It would be more beneficial for someone practising to have a randomising example everytime.

d) Personally I think the question could be presented as "Express [equation] in the form $a \sqrt{b} + m$ where a, b and m are integers or something of that nature. I also think the answer is incorrect and not displayed as one of the options. $\frac{4}{(\sqrt{3}-2)}=-8-4\sqrt{3}&. The question is also not randomised so comes up the same each time.

e),f) both not randomised so the student cannot try another like this and get different values.

Aiden McCall on Rationalising the denominator - surds 7 years, 5 months ago

Gave some feedback: Has some problems

Aiden McCall on Substitute values into formulas 7 years, 5 months ago

Gave some feedback: Needs to be tested

Aiden McCall on Laws of Indices 7 years, 5 months ago

Gave some feedback: Has some problems

Aiden McCall commented on Laws of Indices 7 years, 5 months ago

a) Inputting the question gives the correct answer this can be fixed by restricting the string * 

b) As above

c) Restrict strings ( ) 

d) As above

e) and f) are good. Rest of the question is good just the string parts.

Aiden McCall commented on Working with standard index form 7 years, 5 months ago

a) and b) do not have any problems.

c)

You can input the same values in the question and get the question correct. You can fix this by making the string + and - restricted. It could also be fixed if you had a gap x 10^gap but I'm not sure if that is possible, if it were it would be a nice fix.

d) Same as above fixed by restricting the strings ( )

The below link may be useful

http://www.mathsgenie.co.uk/resources/82_standard-form.pdf

Aiden McCall on Algebra vocabulary 7 years, 5 months ago

Gave some feedback: Needs to be tested

Aiden McCall on Algebra vocabulary 7 years, 5 months ago

Gave some feedback: Has some problems

Aiden McCall on Substitute values into formulas 7 years, 5 months ago

Gave some feedback: Has some problems

Aiden McCall on Algebra vocabulary 7 years, 5 months ago

Gave some feedback: Needs to be tested