Stanislav Duris

Stanislav Duris on Simple interest 7 years, 4 months ago

Gave some feedback: Needs to be tested

Stanislav Duris commented on Use formulae for the area and volume of geometric shapes 7 years, 4 months ago

This question is very nice, I like how there is some context in every part. The images are great and it's clear what the question asks people to do. Good job with geogebra and all those variables. I've noticed some tiny problems.

• You use "Area =" or "Volume =" a lot in the question and sometimes this is displayed in Latex and sometimes it's not. For example, in parts a)c)d)e), before the gap, it is displayed as normal text. In part b), the font is different and much nicer. Do you want to fix this so it is consistent?
• In part c), "Calculate the volume of a cone given the formula for the area of a cone is" should be "Calculate the volume of a cone given the formula for the volume of a cone is".
• In part d), there is a sentence saying "Using the diagram and applying the volume of a sphere to the tennis ball." which is a bit out of place. Do you want to remove it or maybe adjust it so it makes more sense?
• Is it possible to align geogebra applets to the centre? If not, don't worry.

Advice

• In part a), "(the perimeter of the circle) of the circle." does not read well, I think you should just keep (the perimeter) in brackets. I feel like the sentence starting with "Identifying from the diagram that the radius.." is unfinished but maybe that's just me. Maybe replacing "that" with a comma would fix this. Similar problem in part c).
• In part b), the first line of the equation should look like the formula you gave them in the question, with sin as a function rather than just letters s,i,n.
• I think your a)b)c)d)e) headings shouldn't be bold as well, because now they seem way too big in the advice.

Stanislav Duris on Rounding and estimating calculations 7 years, 4 months ago

Gave some feedback: Has some problems

Stanislav Duris on Basic arithmetic operations: addition and subtraction 7 years, 4 months ago

Gave some feedback: Needs to be tested

Stanislav Duris on Always, sometimes or never: square and cube numbers 7 years, 4 months ago

Gave some feedback: Needs to be tested

Stanislav Duris commented on Always, sometimes or never: square and cube numbers 7 years, 4 months ago

Thank you Vicky. I've added the tables now. I'm not sure whether I should keep the original advice for parts vii) and viii) or whether I should replace them completely. I've kept them there for now.

Stanislav Duris on Square and cube numbers 7 years, 4 months ago

Gave some feedback: Needs to be tested

Stanislav Duris on Simple interest 7 years, 4 months ago

Gave some feedback: Needs to be tested

Stanislav Duris on Always, sometimes or never: square and cube numbers 7 years, 4 months ago

Gave some feedback: Needs to be tested