Transition to university

Vicky Hall on Expansion of brackets 8 years, 6 months ago

Gave some feedback: Has some problems

Vicky Hall commented on Expansion of brackets 8 years, 6 months ago

I agree with Christian that a better statement would be:

Expand the expressions below by multiplying each of the terms inside the brackets by the term outside. Give each answer in its simplest form.

Having the 'simplest form' prompt in the statement will save you having to repeat it in every part of the question. 

The questions get progressively more difficult but you essentially have two of each question, which seems unnecessary and makes the page look very long. If a student really wanted to do a particular type of problem multiple times, they could just refresh the page.

Have a check that your advice headers are in heading 4. There are also some typos in the advice.

Chris Graham on Percentages and ratios - box of chocolates 8 years, 6 months ago

Gave some feedback: Has some problems

Chris Graham commented on Percentages and ratios - box of chocolates 8 years, 6 months ago

Nearly there...

In your advice, where you are simply inputting numbers into sentences, you can use "there were {} nutty", rather than "there were $\var{n}$ nutty". Inserting the number in LaTeX changes the font typeface, which is not necessary here. 

I would drop part (e) altogether on this one (probability) as it is a step beyond the core topics that you are assessing (ratios and percentages).

Stanislav Duris on Limits of accuracy in measuring weight in a gym scenario 8 years, 6 months ago

Gave some feedback: Needs to be tested

Vicky Hall on Addition and subtraction of fractions 8 years, 6 months ago

Gave some feedback: Has some problems

Vicky Hall commented on Addition and subtraction of fractions 8 years, 6 months ago

This question has largely the same issues as the other fraction questions I have already commented on. Have a look through and check that:

1) You're using \displaystyle where necessary.

2) There are no unsimplified fractions in the questions. 

3) There are no unnecessary colons in the advice.

Vicky Hall on Using BODMAS to evaluate arithmetic expressions 8 years, 6 months ago

Gave some feedback: Has some problems

Vicky Hall commented on Using BODMAS to evaluate arithmetic expressions 8 years, 6 months ago

In the 'show steps' sections for the final part, you say 'we give roots and fractions the same priority as brackets'. This is not true. Explain to the student that a root is another way of writing a power, so that comes under the Order part of BODMAS,while a fraction means the numerator divided by the denominator, so that follows the Division part of BODMAS.

Bradley Bush commented on Inverse and composite functions 8 years, 6 months ago

I've done that simplification

Hannah Aldous on Combining Logarithm Rules to Solve Equations 8 years, 6 months ago

Gave some feedback: Needs to be tested

Aiden McCall on Substitute values into formulas 8 years, 6 months ago

Gave some feedback: Needs to be tested

Vicky Hall on Solve quadratic inequalities 8 years, 6 months ago

Gave some feedback: Has some problems

Vicky Hall commented on Solve quadratic inequalities 8 years, 6 months ago

Reword the questions here to say something like: find the range of values of $x$ for which ${function}>0$. You have told the student to factorise in the statement so you don't need to say it again. I would also remove the gap asking them to give the factorised form. 

Have a check through the advice as I noticed a couple of typos and a rogue part d).

Vicky Hall on Division of fractions 8 years, 6 months ago

Gave some feedback: Has some problems

Vicky Hall commented on Division of fractions 8 years, 6 months ago

I'm not sure if this is a problem across all parts but when I tried the question, the fraction $\displaystyle\frac{2}{30}$ appeared in part b). All fractions should be in their simplest form so make sure the numbers you use are coprime.

In part c), the answer I got was $\displaystyle\frac{525}{352}$ which is huge! The reason for this is that the denominators in the fractions in the question are large, so make them smaller. Otherwise, the student will just do the sum with a calculator to avoid the multiplication being too tedious. Remember, this is to test division of fractions rather than multiplication.

Make the numbers in part e) variables.

In the advice, remove any colons that appear before your solutions.

Lauren Richards on Substitute values into formulas 8 years, 6 months ago

Gave some feedback: Has some problems

Lauren Richards commented on Substitute values into formulas 8 years, 6 months ago

Hi Aiden,

- I think the way that you have written x=5 in the advice is the way you should write it in the questions. I think that would make it a little clearer. At first, it looks like x=5 is a continuation of the expression. I think this is probably better:

'At x=5,

what is the value of 4x^2+x+53?'

- You need to say in part c) that the user is to use pi=3.142. You did it for part e) but not for part c). I did the question using my calculator pi button as you hadn't specified using any simplification, and the answer I gave was marked incorrect due to different rounding. I then had to use the same answer when finding the volume of the cone and it accepted my answer that time, when multiplied with h/3 so it is only a problem for part c).

- You have the radius, 'r' written in LaTex in part c), but not in part d).

- In part e), "Geraldine has a ball of radius 31.4cm // she wants to find the volume of the ball." doesn't make sense. You're missing a full stop and a capitalisation, or an and. Also, I think the next sentence should be on a separate line personally.

- I don't know if it is automatic, or whether you can change it, but your rounding requirements in part c) and d) are specifying 1 decimal place - singular, but saying "Round your answer to 1 decimal places" - plural.

Aiden McCall on Algebra vocabulary 8 years, 6 months ago

Gave some feedback: Needs to be tested

Vicky Hall on Calculate a student discount 8 years, 6 months ago

Gave some feedback: Has some problems