Chris Graham

Chris Graham on Creating Frequency Tables 8 years, 4 months ago

Gave some feedback: Ready to use

Chris Graham commented on Creating Frequency Tables 8 years, 4 months ago

Added tallies to the first table, rather than giving an empty table followed by the table with frequencies entered. And shortened the advice signficantly to make it more concise. 

Chris Graham commented on Solving Quadratic Equations with $x^2$ Coefficients of 1 by Factorising 8 years, 4 months ago

Appears to be very similar to https://numbas.mathcentre.ac.uk/question/22699/factorising-quadratic-equations-with-x-2-coefficients-of-1/ - I suspect as this had not received any feedback to date, that this was Hannah's question from the first day and that she marked it needs to be tested before leaving - since the other question has been thoroughly tested and covers very similar material I have marked this "should not be used" for the time being. 

Chris Graham on Solving Quadratic Equations with $x^2$ Coefficients of 1 by Factorising 8 years, 4 months ago

Gave some feedback: Should not be used

Chris Graham commented on Compound units : shopping for bananas 8 years, 4 months ago

This was an extraordinarily easy question, and still is, though being a bit of a supermarket bargain guru, it is the sort of mental arithmetic I find myself doing all the time, so have made some modifications and given it a stay of execution.

I've changed this considerably, so am not marking it ready to use.

Chris Graham on Compound units : shopping for bananas 8 years, 4 months ago

Gave some feedback: Needs to be tested

Chris Graham commented on Lowest common multiples: train timetable example 8 years, 4 months ago

I've changed the wording to be, I think, clearer. I've not marked it ready to use, as I would be grateful for a second opinion.

Chris Graham on Using compound units: price/weight of sweets 8 years, 4 months ago

Gave some feedback: Ready to use

Chris Graham commented on Using compound units: price/weight of sweets 8 years, 4 months ago

Looks good. I've given the question a more descriptive title.

Chris Graham on Calculate the areas of polygons 8 years, 4 months ago

Gave some feedback: Ready to use