Bradley Bush

Bradley Bush on Inverse and composite functions 7 years, 5 months ago

Gave some feedback: Needs to be tested

Bradley Bush commented on Extract common factors of polynomials 7 years, 5 months ago

I have made tha change now and the question is working but I was actually looking for a way to have a and b as a random vector of primes with b=(reapeat(random([1,2,3,5,7,11,13...] except a[i])),(Is there a way to code for this?). I instead ended up manually creating lists for a and b where every other prime was in a and the others were in b. Is there a way to code for this? Thank you! 

Bradley Bush commented on Expand brackets and collect like terms 7 years, 5 months ago

Thank you for the feedback!

The 'doesn't work' was something Christian set when he came over and the changes we had made to the editor weren't being reflected in the test runs. I have made the statement more direct, added some string restrictions, changed the advice errors and the part b advice. 

However, for the part b) question I wanted to test the ability of the student to turn the text they are reading into equations which can then be manipulated as a higher level skill to round off the question, but I would like to hear any further opinion you have on this.

Bradley Bush on Expand brackets and collect like terms 7 years, 5 months ago

Gave some feedback: Needs to be tested

Bradley Bush on Solve quadratic inequalities 7 years, 5 months ago

Gave some feedback: Needs to be tested

Bradley Bush commented on Solve quadratic inequalities 7 years, 5 months ago

How do I allow either or answers for the gap in part a?

Bradley Bush on Solving linear inequalities 7 years, 5 months ago

Gave some feedback: Needs to be tested

Bradley Bush commented on Extract common factors of polynomials 7 years, 5 months ago

Could not get the except function to work because of the variables being vector so  have altered the vectors so the numbers they select their elements from are mutually exclusive.