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 created Vectors 2 years, 7 months ago

#### Chris Graham on Describe vectors in terms of base vectors, add and find magnitude 2 years, 7 months ago

Gave some feedback: Needs to be tested

#### Chris Graham on Describe vectors in terms of base vectors, add and find magnitude 2 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 magnitude 2 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 magnitude 2 years, 7 months ago

Saved a checkpoint:

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

#### Chris Graham created Describe (one-component) vectors in terms of base vectors, add and find magnitude 2 years, 7 months ago

#### Christopher boyd on Find the equation of a line through two points - positive gradient 2 years, 8 months ago

Gave some feedback: Ready to use

#### Christian Lawson-Perfect on Find and use the formula for a geometric sequence 2 years, 10 months ago

Gave some feedback: Ready to use

#### Christian Lawson-Perfect on Find and use the formula for a geometric sequence 2 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 elimination 2 years, 10 months ago

Gave some feedback: Ready to use

#### Christian Lawson-Perfect on Solving linear simultaneous equations by elimination 2 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 sequence 2 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 sequence 2 years, 10 months ago

Gave some feedback: Has some problems

#### Deirdre Casey on Solving linear simultaneous equations by elimination 2 years, 11 months ago

Gave some feedback: Has some problems

#### Deirdre Casey on Solving linear simultaneous equations by elimination 2 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 formulas 2 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 terms 2 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 formulas 2 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 terms 2 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.