With the new academic year approaching are you about to start advanced level studies? Or perhaps you are heading off to university?
Photograph by David Young
At the wonderful National Cinema Museum, Turin – holiday time this week!
Thinking about Maths in the movies led me to this great collection of movie clips featuring Mathematics from Harvard University.
We must of course include Abbot & Costello showing that 7×13=28!
Mathbits.com includes a section on using movie clips in the mathematics classroom. The site suggests several possible movie clips to use and has accompanying worksheets. The Abbott & Costello clip mentioned above is included, the MathsBits worksheet is here.
I loved Donald in Mathmagic Land as a child.
For a series of excellent articles see Plus Magazine’s Mathematics in Films.
For a very comprehensive database of mathematics mentioned anywhere is a movie try MMDB – The Mathematical Movie Database from Burkard Polster and Marty Ross.
From Numberphile, Math and Movies (Animation at Pixar) we learn how 3D aminated characters…
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28th June is a Perfect Day to enjoy some Mathematics!
Perfect because 28 and 6 are both perfect numbers. You can easily check for properties of any number with Tanya Khovanova’s Number Gossip where we learn that 28 does not only have the rare property of being perfect, it is also composite, even, happy, odious, practical, triangular and Ulam! You can browse all the properties here.
28 is also happy! Happy Numbers – a favourite investigation, Dr Who knows about happy primes!
It’s also National Tau Day! Pi is wrong…..
This video provides a short version of the Tau Manifesto (14 minutes)
Have a look at this Desmos page (or select the image).
Before you take a peek in the Love folder, can you identify the functions used for the various letters?
And Desmos thanked us both for spreading the love!
For more on Desmos – see this series of pages.
A great source of questions and full solutions for the Pure Maths content of A Level exams.
One of my students told me recently about MadAsMaths by Dr Trifon Madas. She likes the Practice Papers, particularly the way the papers are rated according to their difficulty, see C1 for example. All papers come with full solutions.
MadAsMaths question & solution
Not only do all the questions come with full solutions but most have very clear mark schemes too.
MadAsMaths mark scheme example
The papers cover the Pure Mathematics content of the UK A Level course. Note the Special Papers designed for extremely able students; ideal for students capable of the top grades. This is a really valuable collection of questions.
There are further questions and solutions available in the large collection of booklets, originally samples they are free to use. These are pdf files, if you zoom you will see a clear solution as illustrated in the image here. Some of these booklets are aimed…
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For a really clear plotter showing the connection between the Cartesian graph of r=f(θ) and the graph in polar coordinates try this Polar Curves and Cartesian Graphs applet. Watch the display carefully as you move the slider; you can easily see when r is negative for example.
For more on Polar Curves – including notes and the use of Desmos, see this post.
Some books that might be useful for you:
Complete GCSE Maths Revision text from CLCnet. Don’t be put off by the 2007 date – this is still useful. The text includes numerous set of questions for each topic by grade with solutions for all the examples.
Craig Barton’s E-Book of Notes and Examples is a comprehensive set of notes with very clear worked examples; this is extremely useful for students age 11 to 16 and for any older students who need a refresher.
‘Street Fighting Mathematics‘ by Sanjoy Mahajan, with the excellent sub-title ‘The Art of Educated Guessing and Opportunistic Problem Solving’ (note the link on the left to the free Creative Commons edition under Essential Info).
Check Amazon for Kindle books, a small number of which are free or very low cost. Now you don’t have to own a Kindle to read Kindle books as the Kindle app is free to download for any device you may own: PC, phone or tablet. It is possible to search Kindle books by price, so a search on Mathematics books by price from lowest to highest will give all the free entries; there are lots of toddler books and samples there but the odd useful book is available. A very useful search for low cost books is a search on popular Mathematics books, price low to high. which returns popular Mathematics and Science books for as little as 99p.
Try Henry Ernest Dudeney’s – Amusements in Mathematics a puzzle collection (with solutions). The first set of puzzles offers a little History, money – pre-decimal! There are several categories of puzzles available. Or try Edwin Abbott’s Flatand the tale of a two-dimensional world occupied by geometric figures.
You could even write your own book! If publishing your own Kindle eBook feels a little too much right now – you could try something simpler using Storybird – click the image to see this story on Storybird
..and finally, I must mention John & Betty’s Journey Into Complex Numbers!
We can also find details on Mathisfun.
The Google Doodle for today celebrates Leap Year
For any Excel users this formula will determine whether or not a year is a leap year:
=IF(OR(MOD(A1,400)=0,AND(MOD(A1,4)=0,MOD(A1,100)<>0)),”Leap Year”, “NOT a Leap Year”)
Why not send your mathematical friends (or anybody else!) a Desmos Valentine? The wonderful team at Desmos have made their brilliant math-o-grams available earlier this year….and watch out for new designs coming soon.
The math-o-grams are really easy to create; why not give it a try? Just select your design, add your message and share!
Is your writing clear and well structured? Easy to read and follow?
You will find some excellent examples from Dr Kevin Lee in his Guide to Writing Mathematics.
See also Ten Simple Rules for Mathematical Writing from Dimitri Bertsekas.