Edexcel S1 Jan 2002, Q5 |
I used this query inward an S1 lesson when I was heavily pregnant, much to the entertainment of my students. It led to a tidings virtually the gestation periods of other mammals (those misfortunate elephants!). We’d clearly await a fairly strong correlation betwixt size together with gestation - when I learn a conduct chances I'll run into if I tin pattern an interesting activeness using this information (I wonder whether anything similar is done inward biology).
Speaking of gestation periods - I recollect when my due appointment for my starting fourth dimension immature lady came together with went, I tried to discovery statistics online to tell me how far overdue I mightiness go. I wanted to know the probability of babe arriving at 42 weeks. I didn’t discovery much online at the fourth dimension merely i time to a greater extent than I experience it could brand for an interesting lesson.
The ruddy mass contains this description of the centile lines on the increment charts:
More information virtually the charts is available inward this fact sheet from the RCPCH.
While I was thinking virtually how to pattern an activeness for my S1 bird based on these charts, I discovered that the writer of The Chalk Face has beaten me to it alongside this prissy 'Quartiles together with Percentiles' activity. And @srcav has already written this spider web log ship service 'the mathematics of parenthood' virtually the potential to role increment charts inward his teaching.
Incidentally, the ruddy mass says ‘someone who has been appropriately trained should consummate the increment chart’. Hmm. I promise they're non suggesting that members of the populace are incapable of adding a dot to a uncomplicated scatter graph?!
My mini-mathematicians. July 2014. |