Chris Graham

Chris Graham on Converting units of height (feet/inches/cm) 8 years, 4 months ago

Gave some feedback: Ready to use

Chris Graham commented on Converting units of height (feet/inches/cm) 8 years, 4 months ago

Part of a larger question. I've reorganised, given the unit conversion table to the student, and added steps. 

Chris Graham commented on Converting units of length (km/m/miles) 8 years, 4 months ago

Split from a larger question on converting units. I've tidied the advice, reorganised the part, used the random names extension and added a bit more context.

Chris Graham on Converting units of length (km/m/miles) 8 years, 4 months ago

Gave some feedback: Ready to use

Chris Graham on Using Laws for Addition and Subtraction of Logarithms 8 years, 4 months ago

Gave some feedback: Ready to use

Chris Graham commented on Using Laws for Addition and Subtraction of Logarithms 8 years, 4 months ago

This question had an unwieldy part b), asking the student to simplify an expression containing many log terms. This was set up in an extraordinarily complicated way with over a dozen variables and, as I'm sure we have other similar questions written in a less complex way, I have removed it and reorganised part a) to become two parts. The question is very straightforward now, but I think that's OK.

Chris Graham on Exponential increase 8 years, 4 months ago

Gave some feedback: Needs to be tested