Helping students to estimate mean and standard deviation

Helping students to estimate mean and standard deviation

Estimating the mean and standard deviation of a discrete random variable is something we expect NZ students to be able to do by the time they finish Year 13 (Grade 12). The idea is that students estimate these properties of a

It’s raining cats and dogs (hopefully)

It’s raining cats and dogs (hopefully)

In April 2017, I presented an ASA K-12 statistics education webinar: Statistical reasoning with data cards (webinar). Towards the end of the webinar, I encouraged teachers to get students to make their own data cards about their cats. A few days later,

A stats cat in a square?

A stats cat in a square?

On Twitter a couple of days ago, I saw a tweet suggesting that if you mark out a square on your floor, your cat will sit in it.   Nobody has had a more productive day than my mother pic.twitter.com/LK6KX9KM1x

Initial adventures in Stickland

Initial adventures in Stickland

This post provides the notes for a workshop I ran at the Otago Mathematics Association (OMA) Conference about using data challenges to encourage statistical thinking. Until last week, I had never re-presented or adapted a workshop that I had developed in

Welcome to stickland!

Welcome to stickland!

I’ve been working on a little side project for the last year or so. I thought this might be a good time to share this with you, particularly since I probably (with a very high probability) won’t be making any

Hey! You’ve got to hide that population away …

Hey! You’ve got to hide that population away …

Back in 2012 was when I first set up an online tool for taking a random sample from a hidden population. I didn’t share or promote this tool at the time because it was always meant to be a short term

censusatschool.org.nz + iNZight lite = awesome

censusatschool.org.nz + iNZight lite = awesome

This is a short post about exploring data from Census at school NZ using the online version of iNZight. Have you use the random sampler lately on Census at School? Did you know that it now links your random sample through