Material created by students working with the School of Mathematics, Statistics & Physics E-Learning Unit at Newcastle University over the summer of 2017, to support students making the transition from school to university.

## Project activity

#### Chris Graham on Describe vectors in terms of base vectors, add and find magnitude2 years, 7 months ago

Gave some feedback: Needs to be tested

#### Chris Graham on Describe vectors in terms of base vectors, add and find magnitude2 years, 7 months ago

Saved a checkpoint:

This is a rewrite of a question form the Newcastle University Biomechanics project, which seems more appropriate in the Transition to university project. The question originally used Geogebra to display he vectors; I've re-written in JSXGraph.

#### Chris Graham on Describe (one-component) vectors in terms of base vectors, add and find magnitude2 years, 7 months ago

Gave some feedback: Needs to be tested

#### Chris Graham on Describe (one-component) vectors in terms of base vectors, add and find magnitude2 years, 7 months ago

Saved a checkpoint:

Adapted from a question using Geogebra in the Newcastle University Biomechanics project

#### Christopher boyd on Find the equation of a line through two points - positive gradient2 years, 8 months ago

Gave some feedback: Ready to use

#### Christian Lawson-Perfect on Find and use the formula for a geometric sequence2 years, 10 months ago

Gave some feedback: Ready to use

#### Christian Lawson-Perfect on Find and use the formula for a geometric sequence2 years, 10 months ago

Saved a checkpoint:

Looks like there was an off-by-one error.

#### Christian Lawson-Perfect on Solving linear simultaneous equations by elimination2 years, 10 months ago

Gave some feedback: Ready to use

#### Christian Lawson-Perfect on Solving linear simultaneous equations by elimination2 years, 10 months ago

Saved a checkpoint:

You're right! I've fixed it, and improved the TeX. Worried that I let that slip by!

#### Deirdre Casey on Find and use the formula for a geometric sequence2 years, 10 months ago

In part b does not accept correct answer. Mistake also shown in the solutions.

#### Deirdre Casey on Find and use the formula for a geometric sequence2 years, 10 months ago

Gave some feedback: Has some problems

#### Deirdre Casey on Solving linear simultaneous equations by elimination2 years, 11 months ago

Gave some feedback: Has some problems

#### Deirdre Casey on Solving linear simultaneous equations by elimination2 years, 11 months ago

I think there is a sign error in the second equation in part b.

#### Christian Lawson-Perfect on Substitute values into formulas2 years, 11 months ago

Saved a checkpoint:

I've changed the definition of x2 to make sure the sales are always non-negative.

#### Christian Lawson-Perfect on Expand brackets and collect like terms2 years, 11 months ago

Saved a checkpoint:

I've fixed part h - I was missing a plus-or-minus in the matching pattern.

#### J. Richard Snape on Substitute values into formulas2 years, 11 months ago

Part (b) uses the random variable n={0..4}, but that can give negative sales in a year which doesn't make much sense.  I think that the variable definition has been copied over from a different word type question and should actually be allowed to run {2..5}

#### J. Richard Snape on Expand brackets and collect like terms2 years, 11 months ago

Thanks for this fantastic question set in "Transition to University".  I'm trialling using them in my teaching this year.  I have a tiny problem with part h in this question - for some reason when I use it when a student enters a correct answer it marks it wrong, giving feedback that it can be further simplified.  I attach a screenshot - not sure what rule is triggering this as even the 419 constant is prime, so I can't see any further gathering of terms possible.  I'll try to debug myself, but any help would be appreciated :)  It seems to be using "all" for simplification in the marking, but so are other parts in this question that work fine.

## Content

 Ready to use 151 Should not be used 11 Has some problems 3 Doesn't work 0 Needs to be tested 14 Draft 2