Secret statistical snowflakes

Secret statistical snowflakes

Want to make some awesome gift tags/labels for Christmas or holiday-related presents? Here’s a fun little statistical art project. Write whatever words you want in the app below, create some secret snowflakes (the secret part being no one else will

What’s going on, what’s going on?

What’s going on, what’s going on?

For many high school teachers here in New Zealand, the teaching year is over and it’s now a six-week summer break before school starts again next year. Despite the well-deserved break, some teachers are already thinking about ideas for next

Game of data

Game of data

This post is second in a series of posts where I’m going to share some strategies for getting real data to use for statistical investigations that require sample to population inference. As I write them, you will be able to

Just Google it

Just Google it

Here’s a really quick idea for a matching activity, totally building off Pip Arnold’s excellent work on shape. At the bottom of this post are six “Popular times” graphs generated today by Google when searching for the following places of

Finding real data for real data stories

Finding real data for real data stories

This post is first in a series of posts where I’m going to share some strategies for getting real data for real data stories, specifically to use for statistical investigations that require sample to population inference. As I write them,

The power of pixels: Modelling with images

The power of pixels: Modelling with images

This post provides the notes for the plenary I gave for the Auckland Mathematical Association (AMA) about using images as a source of data for teaching statistical investigations. You might be disappointed to find out that my talk (and this post)

Cat and whisker plots – sampling from the Quick, Draw! dataset

Cat and whisker plots – sampling from the Quick, Draw! dataset

Last night, I saw a tweet announcing that Google had made data available on over 50 million drawings from the game Quick, Draw! I had never played the game before, but it is pretty cool. The idea behind the game is

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,

Which one doesn’t belong …. for stats?

Which one doesn’t belong …. for stats?

If you haven’t heard of the activity Which one doesn’t belong? (WODB), it involves showing students four “things” and asking them to describe/argue which one doesn’t belong. There are heaps of examples of Which one doesn’t belong? in action for math(s) on the