Transition to university

Lauren Richards commented on Decimals to fractions 8 years, 6 months ago

Everything is fixed now EXCEPT part b)i) STILL does not simplify properly for some unknown reason. It gave 342/1000 as that instead of 171/500 and another time 302/1000 instead of 151/500 and again another time 416/1000 instead of 52/125. 

Lauren Richards on Decimals to fractions 8 years, 6 months ago

Gave some feedback: Has some problems

Bradley Bush commented on Match statement to graphs 8 years, 6 months ago

Cannot get the variables to work inside our image function :(

Stanislav Duris commented on Calculate a student discount 8 years, 6 months ago

Thank you. A warning message was a good suggestion so i've included it now.

Stanislav Duris on Calculate a student discount 8 years, 6 months ago

Gave some feedback: Needs to be tested

Hannah Aldous on Finding the formula for the $n^{\text{th}}$ term of linear sequences 8 years, 6 months ago

Gave some feedback: Needs to be tested

Bradley Bush on Calculate a student discount 8 years, 6 months ago

Gave some feedback: Has some problems

Bradley Bush commented on Calculate a student discount 8 years, 6 months ago

Very good, straight forward question so only a few minor ideas:

• I know you've said it in the advice but you probably should specify that you want rounding to 2 decimal places (or the nearest penny) particularly because sometimes shops will round up the cost of an item etc.
• If you were able to, a warning message that explains the figure needs to be rounded to 2.d.p might be really useful for cases where students have put the full length answer in.
• On the rounding note, in the advice, it would probably be useful to have the full non-rounded answer then have a extra step where the figure is rounded to 2.d.p.
• I think that it is very thorough that you've included both methods of finding the solution using both fractionas and decimals aswell, so well done for that.

Really good question overall

Stanislav Duris on Complete a frequency table and find the measures of central tendency 8 years, 6 months ago

Gave some feedback: Needs to be tested

Hannah Aldous on Use the quadratic formula to solve an equation in terms of an unknown variable 8 years, 6 months ago

Gave some feedback: Needs to be tested

Hannah Aldous on Using the Quadratic Formula to Solve Equations of the Form $ax^2 +bx+c=0$ 8 years, 6 months ago

Gave some feedback: Needs to be tested

Chris Graham commented on Theoretical Probability vs Experimental Probability 8 years, 6 months ago

As discussed, would be better as two questions with separate parts. In part (b) the student will answer the second two gaps based on their interpretation of the coin's bias, and offering feedback after the first bit would then set them down the right track.

The drop down question should work with the opposing terms either way round. This would require a marking matrix (it would need to be its own part, but I've suggested you do that anyway), or this could be replaced with multiple choice statements.

I don't think "Is this coin biased?" is a fair question here: statistically it may or may not be, so as suggested you could replace this with two experiments, with a distractor set of results for small N, and then ask the student which coin is more likely to be biased. This is assessing their understanding that the experimental approaches the theoretical probability.

Bradley Bush on Finding unknown coefficients of a polynomial, using the remainder theorem 8 years, 6 months ago

Gave some feedback: Has some problems

Bradley Bush commented on Finding unknown coefficients of a polynomial, using the remainder theorem 8 years, 6 months ago

Amazing question, most of my feedback revolves around the idea that I think it might be too hard for the student so I only have a few comments on this one:

• I didn't find an example of when s and t weren't both fractions, I think this adds to the complexity and the challenge of the question but is this what we want to be testing? Could this be imporved through making the variables 'nicer' so the answers are whole numbers more often than not?
• If you are leaving the answers as their more complex fraction form then you need to have a go at changing the error message that comes up. The answer gap still accepts a fractional answer if you type the fraction in full, however, if you're slow like me and you type "x/" and then pause for a second, you'll get an error message "your answer is invalid. You must enter an integer or a decimal. This is weird because when you then finish the expresion, the error message goes away. I am just thinking that this might be misdirective to see for anyone typing in their answer slowly. If you can't fix the error message, and you are keeping the fractional answers then it might be worth specifying that answers can be left as fractions in the question.
• On that note, I might write "reduce your answer to simplist [fractional] form" instead of "reduce your answer to it's lowest terms"; or something along those lines.
• I am actually thinking that the question still might be too hard for some students, making it inaccessible to the students who have less algebraic skill; even with the changes I suggested above. Maybe a solution of this is to create a copy of the question (labelling it 'easy version') and have the same question, just break it down into parts by asking students to give an expression for p(factor 1) then p(factor 2) then with the third part asking them to use simultaneous equations to find t and s.
• Your parts and advice seem free of typos and formatting errors (I'm very jealous).

Feel free to ask if you don't understand any of what I've been getting at. High quality question.

Chris Graham commented on Decimals to fractions 8 years, 6 months ago

Hi Lauren, you currently have amissing answer(s) for your gaps. If you can sort that and I'll also come and see you.

Lauren Richards on Lowest common multiples: train timetable example 8 years, 6 months ago

Gave some feedback: Needs to be tested

Bradley Bush on Straight line equation application: measuring sunflower height 8 years, 6 months ago

Gave some feedback: Needs to be tested

Stanislav Duris on Calculate the measures of central tendency for a sample 8 years, 6 months ago

Gave some feedback: Needs to be tested