Christian Lawson-Perfect

Christian Lawson-Perfect on Rounding and estimating calculations - painting a room 8 years, 5 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect on Rounding and estimating calculations - painting a room 8 years, 5 months ago

Saved a checkpoint:

I've split this off from a bigger question.

I've used the random names extension, rewritten the advice, and added a testing condition so that the exact amount of paint needed is never a whole number of buckets.

Christian Lawson-Perfect on Rounding and estimating calculations - adding up prices in a shop 8 years, 5 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect on Rounding and estimating calculations - adding up prices in a shop 8 years, 5 months ago

Saved a checkpoint:

I've split this off from a larger question.

Changed the randomisation so that sometimes we do have enough money.

Used the currency function to display currencies, rather than formatting by hand.

Christian Lawson-Perfect on Find bounds for distance and time spent running, given imprecise measurements 8 years, 5 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect on Find bounds for distance and time spent running, given imprecise measurements 8 years, 5 months ago

Saved a checkpoint:

Rejigged a lot of the advice, and added steps to part a to make it abundantly clear that you need to calculate bounds for both the speed and the time taken.

It would be nice if the time was sometimes definitely lower or higher than the record, but I've spent long enough on this question already.

Christian Lawson-Perfect on Find bounds for distance and time spent running, given imprecise measurements 8 years, 5 months ago

Saved a checkpoint:

Used the random names extension, and split part b in two, so you can calculate the upper bounds before making the decision.

Needs some rewording to make it clear that the bounds come from the uncertainty in the average running speed.