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When the data doesn鈥檛 work
This week I鈥檝e been running the tutorials for the core first year Health Sciences course. The tutorial is a very light intro into how data is part of communication of health science research, and one of the activities involves the students arranging a set of data cards to investigate relationships between variables. Something happened today that I hadn鈥檛 observed before and I need to talk about it.
The Seven Sticks and what mathematics is
This week I provided games and puzzles at a welcome lunch for new students in the Mathematical Sciences degree programs. I had big logic puzzles and maths toys and also a list of some of my eight most favourite puzzles on tables with paper tablecloths to write on.
Zooming in to see the slope
A lot of people introduce the derivative at a point as the slope of the tangent at that point, which to me is quite confusing. It seems to me that the reason we want the derivative is that it is a measure of the slope of our actual function at that point, not the slope of a completely different thing. To me, the thing is that the function itself is pretty much straight if we are close enough to it, so when we're looking really close, saying it has a slope at this point is a meaningful thing to say.
The Number Dress-Up Party
I created the Number Dress-Up Party puzzle way back in 2017 and every so often I stumble across it again when searching Twitter for other stuff. When I stumbled across it today, I decided it was time to write it up in a blog post.
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