To catch a crook?

This term in Maths the POD 3 students are exploring Chance and Data concepts through a series of investigations.
One such investigation is know at the Grubby Pages effect. Over the next few weeks students will be investigating a theory founded in 1881 by astronomer, Simon Newcomb. Newcomb’s theory came about by some ‘grubby observations’ of log table books (for those of us older than 30 or 40, we used these at school to complete calculations before calculators were used in schools). In 1938, Frank Bedford again noticed the ‘grubby pages’ but it wasn’t until as recently as 1996 that Ted Hill, a mathematician, realised how this discovery could help detect fraud.

Be sure to check back here to read the student’s discoveries and their thoughts on Benford’s law.

Check out our Wii mathematics

In our previous post we shared how we have been exploring Chance and Data concepts in our math investigations this term.
Something to think about…When you eat chicken is it rooster? What are the chances that the meat you are eating is actually from a rooster?
Check out the images of the students in POD 3 playing the Wii to generate data sets which they then used to calculate the statics of central tendency! Great work team.

That’s a RAP

Today in maths we were exploring mean, mode, median and range by playing Mario Kart and some other online games. We watched a video rap about these data terms and decided to write our own rap.

The lesson went really well with most of the boys make great connections to the data and how to calculate these data scores.

Here is the boys rap

To the tune of ‘Smoke on the water’

Mode, mode, mode …what is the mode? What is the mode of data?

To get the mode, you just have to look, to see what happens most often!

Median, Median, Median, Median, Median, Median, Median, Median, Median… Median.
It’s in the middle, it’s in the middle, it’s in the middle of data!

Mean, mean, mean, mean, mean, mean, mean – mean is the average number.
Add ’em up, divide by the set then you get the MEAN number!

Range, range, range…range, range, range, range – you get the range by subtraction.
Find the biggest, the biggest number, then subtract the smallest.

Listen to the boys here
MMMR data rap