Christian Lawson-Perfect
Member of the e-learning unit in Newcastle University's School of Mathematics and Statistics.
Lead developer of Numbas.
I'm happy to answer any questions - email me.
Christian's activity
Christian Lawson-Perfect created Randomly give two of hypotenuse, opposite, and adjacent side of a triangle 8 years, 5 months ago
Christian Lawson-Perfect published The "Random person" extension 8 years, 5 months ago
Christian Lawson-Perfect created The "Random person" extension 8 years, 5 months ago
Christian Lawson-Perfect on Create an algebraic expression from a word problem, simplify, and evaluate 8 years, 5 months ago
Gave some feedback: Ready to use
Christian Lawson-Perfect on Create an algebraic expression from a word problem, simplify, and evaluate 8 years, 5 months ago
Saved a checkpoint:
I've reworded the statement and some of the prompts, and added a separate "simplify your expression step" using pattern-matching so that the first one doesn't have to be simplified.
I've also reworded the advice quite heavily.
Christian Lawson-Perfect on Arithmetic sequences in an ice cream shop 8 years, 5 months ago
Saved a checkpoint:
I've split the parts into separate questions, since they're unrelated.
This leaves the ice cream shop question, and it needs new advice.
Christian Lawson-Perfect on Arithmetic sequences in an ice cream shop 8 years, 5 months ago
Gave some feedback: Has some problems
Christian Lawson-Perfect on Write down and apply the formula for an arithmetic sequence. 8 years, 5 months ago
Gave some feedback: Ready to use
Christian Lawson-Perfect on Write down and apply the formula for an arithmetic sequence. 8 years, 5 months ago
Saved a checkpoint:
Extracted from a bigger question and largely rewritten.