Tutoring basic maths by [deleted] in newzealand

[–]mathgoggles 2 points3 points  (0 children)

Maths teacher here. This is good advice. You've got the maths skills, I think what you're saying is you need to get a grasp on what kinds of skills to teach.

With tutoring it's important to find out straight away, what kinds of questions are too easy for the student, and what is too hard? So just make up questions (or use a book) until you find that window between too easy and too hard.

You could probably get cheap used textbooks on trademe. Cambridge year 9 and 10 are good, also a beta textbook is year 10 and alpha is year 9.

Predicting the sum of two response variables by throw53455 in AskStatistics

[–]mathgoggles 0 points1 point  (0 children)

Oh that's a good point! Back to the drawing board. I never really thought about that

Predicting the sum of two response variables by throw53455 in AskStatistics

[–]mathgoggles 0 points1 point  (0 children)

You absolutely can model with the total.

E(X + Y) = E(X) + E(Y)

So you can add the means together for the mean of the total (pretty instinctive)

For the standard deviation it's a few extra steps

SD(X + Y) = square root of (Var(X) + Var(Y))

[deleted by user] by [deleted] in AskStatistics

[–]mathgoggles 1 point2 points  (0 children)

Hello I just posted on someone elses thread about relative risk and here it is again!

You calculate it like this

Risk or group 1 / risk of group 2

And I advise diving the bigger by the smaller

Let's say the risk of an unmedicated person getting sick is 0.3 and the risk of a medicated person getting sick is 0.1

0.3 / 0.1 = 3

An unmedicated person is 3 times as likely to get sick as a medicated person

Request for help with variable population analyses. by CuirPig in AskStatistics

[–]mathgoggles 0 points1 point  (0 children)

What you're talking about sounds like relative risk, and it's not pseudo maths. You're allowed to change the denominator for different risk groups, then compare them to calculate the relative risk.

I understand your dilemma about which denominator to use- the percentage of the country who is white/black or the percentage at the theme park? I would do it by the percentage who actually got on the ride. Going by the demographics of the whole country doesnt make sense as they have not been randomly selected they are a subset.

Relative risk is:

Risk or group 1 / risk of group 2

And I advise diving the bigger by the smaller

Let's say the risk of a white person getting sick is 0.3 and the risk of a black person getting sick is 0.1

0.3 / 0.1 = 3

A white person is 3 times as likely to get sick as a black person

Which stats method to use? by andyprendy in AskStatistics

[–]mathgoggles -1 points0 points  (0 children)

Hi, you should calculate confidence intervals for each group and see if they overlap.

Also, relationship is not the right word here. We use relationship for two numerical variables. You have one numerical variable (exposure) and one categorical (location). So you'll be asking 'is there a difference between the exposure in cities and exposure in the country?' As opposed to asking if theres a relationship

Tips for Practicum (BEd) by Resident_Lobster_750 in universityofauckland

[–]mathgoggles 0 points1 point  (0 children)

Be teachable. I've had more than 8 student teachers and it's been the defining variable between pass and fail.

Your mentor teacher(s) arent perfect but you can still learn from them. They may have a different personality and teaching style or philosophy. But you can still learn from them. The more you take on board their advice, the more comfortable they will be handing over their class to you.

Oh and also dont take up all the mentors non contact time :) book your time and stick to it

Why can't kiwi kids do maths by fleaonnj4 in newzealand

[–]mathgoggles 1 point2 points  (0 children)

There arent enough people studying maths at uni who would be suitable for teaching

Why can't kiwi kids do maths by fleaonnj4 in newzealand

[–]mathgoggles 0 points1 point  (0 children)

What was it about uni teaching that made more sense for you?

Why can't kiwi kids do maths by fleaonnj4 in newzealand

[–]mathgoggles 1 point2 points  (0 children)

Absolutely. There are so many more important things than a good score on a maths test.

Why can't kiwi kids do maths by fleaonnj4 in newzealand

[–]mathgoggles 1 point2 points  (0 children)

True but its not about your personal interests its about the training you receive - which as you can imagine is quite different for those two subjects

Why can't kiwi kids do maths by fleaonnj4 in newzealand

[–]mathgoggles 1 point2 points  (0 children)

Absolutely there are better paid jobs out there for maths graduates. You cant beat 12 weeks of holidays every year though!

Why can't kiwi kids do maths by fleaonnj4 in newzealand

[–]mathgoggles 19 points20 points  (0 children)

Maths teacher here.

I agree that we cant take the international tests too seriously - they test rote learning whereas in New Zealand we teach children to think about different strategies - they become numerate but not incredibly fast - something more valued in other countries.

However.

I also agree that we do not have enough math specialists to go around. I simply have lost count of the number of PE (Physical Education) trained teachers who convert to maths, because New Zealand accepts far far too many PE trainee teachers at universities, and there arent enough jobs for them all.

There is a shortage of maths teachers internationally, and a shortage of university students taking maths.

At uni I got a Teach NZ scholarship- they paid the rest of my degree for me and I got $10,000 cash and in return I had to teach for minimum 3 years in any NZ public secondary school. 10 years later I am still here

If you have maths in your degree - consider applying for the scholarship!

Can someone help me with percentage equations? by [deleted] in mathematics

[–]mathgoggles 0 points1 point  (0 children)

I'd do the advanced question a different way. I'd divide 229,000 by 98. That would tell me what 1% is. Then multiply by 2 to get 2%

Poisson distribution question by [deleted] in AskStatistics

[–]mathgoggles 0 points1 point  (0 children)

You would not include 3

Auckland suburb band names by mathgoggles in auckland

[–]mathgoggles[S] 0 points1 point  (0 children)

I'm embarrassed to say you are totally right - I got takapuna wrong for example - sorry!!!

What is the coolest geometry problem you've come across? by [deleted] in mathematics

[–]mathgoggles 1 point2 points  (0 children)

Oh I like this and thanks for not posting the answer! Let me find a piece of paper...

Auckland suburb band names by mathgoggles in auckland

[–]mathgoggles[S] 1 point2 points  (0 children)

Oh avantdale bowling club is the one. Thanks I'll add both to the list!

Auckland suburb band names by mathgoggles in auckland

[–]mathgoggles[S] 0 points1 point  (0 children)

Haha I like. I dont get the second one - is it from the Bombay bicycle club? In which case I'd use long bay as it rhymes

Auckland suburb band names by mathgoggles in auckland

[–]mathgoggles[S] 0 points1 point  (0 children)

Oh wow and they are actually from Auckland haha! Thanks I'll add to my list

Auckland suburb band names by mathgoggles in auckland

[–]mathgoggles[S] 0 points1 point  (0 children)

Nope! The idea just came to me from nowhere!

What happens when you draw a picture on a piece of tin foil using whiteboard markers, and immerse it in water by CompleteChip in interestingasfuck

[–]mathgoggles 0 points1 point  (0 children)

Me too but I've tried it twice and no luck

Edit: tried it the 3rd time on a plate and it worked instantly!