For many challenging questions to really get you thinking, try the brilliant Underground Mathematics site. You can follow them on Facebook or Twitter too.
You can search by Station, suppose you want to practise your Algebra – try the Thinking About Algebra Station for example where you will find everything from Equation Sudoku to some challenging Surd manipulations.
On the subject of surds – try Scary Sum!
If you create a (free) account you can save and categorise your favourite resources.
There are many Underground Mathematics Resource Types. Try the Review Questions for example, which in the words of the Underground Maths Team:
These are questions designed to test students’ understanding of one or more topics and to exercise their problem-solving skills. In many cases they can also be used as a classroom resource to help teach concepts and methods. They are mostly drawn from past examination questions and have been chosen as ones that are interesting in nature and require non-routine thinking. The hints and solutions are designed to explain the reasoning and highlight connections as well as giving the answer. In many cases, alternative methods or solutions are presented.
Note the various question types available; these include very challenging questions for students age 16+.
Select image for question & solution
The Oxford MAT collection includes an extensive selection of Multiple Choice Questions.
O/AO-level questions are included. These questions provide excellent challenge for sudents aspiring to the top grades for examinations taken at age 15-16 and beyond..
Can we fully factorise x4+4y4?
Starts with a Show that….
We could get very sophisticated and look at those quadratic factors too; useful for those studying the Level 2 Further Mathematics Qualification.
Can we simplify these algebraic fractions?
Review algebraic fractions
Can we simplify these simultaneous equations of degree 1 and 2?
Solve simultaneous equations. We will need to factorise a quadratic in this problem with a coefficient which is not 1 for the square term. My students and I are fans of the Box Method where a factorisation cannot easily be done by inspection.
Note the updated Calculators and Tools series of pages including a page for Calculator Manuals.
have been checked amd updated.
A new page on Collections has been added which will be updated …
The ultimate Calculator has to be WolframAlpha which as you can see has a page of its own with several slideshows to help you learn how to use it.
For drawing and exploring graphs, use the outstanding Desmos Graphing Calculator.
With the new academic year approaching are you about to start advanced level studies? Or perhaps you are heading off to university?
This post, Transition Time has been updated with new resources and has many useful questions and activities to help you prepare for your next stage of study.
Note in particular the addition of Underground Mathematics and Jonny Griffiths’ Carom Maths.
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?
This came about because of a Twitter conversation. , Admissions Tutor & Senior Lecturer at Loughborough University shared this image. I replied that we should do some dancing too!
And Desmos thanked us both for spreading the love!
For more on Desmos – see this series of pages.
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.
AQA Further Maths Text
For Further Mathematics A Level (age 16-18) AQA have provided a set of three textbooks.
(Scroll down to Resources for students).
AQA-MFP2-TEXTBOOK AQA-MFP3-TEXTBOOK AQA-MFP4-TEXTBOOK
‘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.
Project Gutenberg includes numerous Mathematics books, including classics such as Flatland. (Mark Twain’s comment on “Classic’ – a book which people praise and don’t read.” always amuses me!)
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!
Firstly, A little more on why we have a leap year from The Telegraph, and/or watch this video from Numberphile.
Mathisfun – Leap Years
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”)