Transition to university

Chris Graham commented on Match statement to graphs 8 years, 5 months ago

Hmm, might need Christian's help with this one; something to do with the timing of the variable replacements I would guess. However, could the 'numbering' not be placed outside of the SVGs here? So that they are static, whilst the images are shuffled?

Lauren Richards on Decimals to fractions 8 years, 5 months ago

Gave some feedback: Needs to be tested

Christian Lawson-Perfect on Rationalising the denominator - surds 8 years, 5 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect on Rationalising the denominator - surds 8 years, 5 months ago

Saved a checkpoint:

Good question!

It seems you didn't know about display mode maths while writing the advice: enclose maths in \[ and \] instead of dollar signs to place it at the centre of its own line with a good margin.

Christian Lawson-Perfect on Dividing a polynomial with remainders, using the remainder theorem 8 years, 5 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect on Dividing a polynomial with remainders, using the remainder theorem 8 years, 5 months ago

Saved a checkpoint:

Looks good!

Christian Lawson-Perfect on Drag points to given Cartesian coordinates 8 years, 5 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect on Drag points to given Cartesian coordinates 8 years, 5 months ago

Saved a checkpoint:

I've tidied up the advice, but this is a good question!

Lauren Richards commented on Solving linear inequalities 8 years, 5 months ago

• I don't think you should ask everyone to put their answers as fractions when they're not needed to be in that form. Maybe add a bit saying "where applicable" at the end. 
• Remember to have full stops at the end of each section of your advice. 
• I don't think you need the section describing that c) is a mix of a) and b). Just state what you have to do. Also, as you have it right now, there is a typo - in instead of an.
• Good to highlight dividing by a negative number in part d). 
• Typo in part g) of the advice - "rearraniging" instead of rearranging.
• The advice for part g) is not quite right. the integer does not have the correct sign for the middle two sections of your workings then suddenly has corrected itself by the last line. 

Lauren Richards on Solving linear inequalities 8 years, 5 months ago

Gave some feedback: Has some problems

Hannah Aldous on Finding the $n^{\text{th}}$ Term of a Quadratic Sequence 8 years, 5 months ago

Gave some feedback: Needs to be tested

Christian Lawson-Perfect on Laws of Indices 8 years, 5 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect on Laws of Indices 8 years, 5 months ago

Saved a checkpoint:

It looks like parts e and f had some constant coefficients in the advice which weren't present in the actual question, so I've removed those.

Otherwise, this looks good!

Hannah Aldous on Arithmetic sequences in an ice cream shop 8 years, 5 months ago

Gave some feedback: Needs to be tested

Lauren Richards on Laws of Indices 8 years, 5 months ago

Gave some feedback: Has some problems

Lauren Richards commented on Laws of Indices 8 years, 5 months ago

• I would scrap the first sentence of the statement. It should be in the description. I think I would just write "Using the laws of indices, simplify each expression down to its simplest form." The bit that you have afterwards that states "Recall that a^0=1..." didn't apply to any of the questions I was given, and it seems to be a random place to have this bit of info. 
• In part c), you suggested that the user could use the rule a^-m=1/a^m but when I tried to write my answer in that form it did not accept it. I wouldn't suggest you suggest to the user to use the second rule. 
• Typo in part b) of the advice - explicity instead of explicitly. 
• I'm not sure, but I don't know if the advice for the alternative method of part c) is correct or clear enough. I thought that that rule was a way of reorganising the fraction rather than actually calculating stuff and that if you used it, the final answer of (8a^4)/(3a^6) would be 8/(3a^2) not 8/3(a^-2). I may well be wrong hahaha so just ignore me if so! 
• I think you're missing a \displaystyle in part e) of the advice. 
• I think the bit you have written at the end of part e) "This can be simplified further if possible." is a bit random. I would scrap it. 
• I think you're missing some displaystyles in part f) of the advice as well. 
• I think generally the question is very good and the advice is very clear and concise! 

Lauren Richards on Extract common factors of polynomials 8 years, 5 months ago

Gave some feedback: Has some problems

Lauren Richards commented on Extract common factors of polynomials 8 years, 5 months ago

• I think it is good to give directions on making sure numbas accepts the answer, but you don't need I.E. inside the brackets, the asterisk would be fine. 
• You don't need the words "there is" in the last sentence of the first section of the advice.
• Slight mistake in part ii) of the advice - it says 613 instead of 6x13 in the second bracket, before y^2. 
• There isn't very much consistency in when you use X and when you use * and it gets a little confusing. Also for instance, in part a) when you state the question again before completing in in the advice, the statement of the question doesn't actually match the question in the parts, form-wise. I think you should only use * at the end, to show which form numbas would have accepted it in. 
• Slight mistakes in parts iv) and v) of the advice. The second term in each stated (52) instead of (5x2) and (62) instead of (6x2). The third term in v) also stated (619) instead of (6x19). 
• Typo right at the end of the advice talking about the video - bellow instead of below. 
• Good question. 

Elliott Fletcher commented on Finding unknown coefficients of a polynomial, using the remainder theorem 8 years, 5 months ago

Thanks for your feedback Brad,

I did try to make it so that s and t were always integers but i think there are so many numbers involved in the calculation that it would be very difficult to do. Instead i have restricted the values that the variables can take to make the fractions in the answers slightly nicer.

I see what you mean about the error message, i'm not sure how to fix this but i have said that you can leave your answer as a fraction in the question.

I have also split the question up into parts to make it more accessible to students with less algebraic skill.

Hannah Aldous on Factorising Quadratic Equations with $x^2$ Coefficients Greater than 1 8 years, 5 months ago

Gave some feedback: Needs to be tested