Educational challenges.
A computer challenge designed to improve your arithmetic!
Click for Hardy
A version is available that runs with Microsoft's Excel.
Click to download.
Designed to improve your vocabulary - find the nine-letter word. Only for Internet Explorer
A variation is available that runs with Microsoft's Excel.
Click to download.
A new game that increases word-power is now available:
Macro settings may need adjustment!
This new publication is tricky but rewarding:
An Excel file - click here, then on the green button!
Sudoku - interactive version, in miniature.
Click to enhance logical skills!
Excel version of above. Written in Visual Basic. May need to adjust macro settings.
Similar, but with letters. Based on the Times Test Yourself puzzle.
Click this link for a solution to all full-size Sudoku puzzles. Again runs under Microsoft Excel. Take care typing data!
Adduko - the easiest game on the web.
A Sudoku look-alike, with some simple sums.
A Pi Approximation.
Don't start too high!
A Goldbach Demo.
Search for a counter-example to Goldbach's conjecture. Any even number (>4) is the sum of two odd primes.
A dice-throwing simulation
Simulate the throwing of two dice. Scores are added and recorded for you!
De Mere experiments
Use the computer to experiment on probability. Chevalier De Mere was bothered by these problems around 1650!
Find the factors and multiples of numbers.
Start with some small numbers. Includes HCF and LCM.
Test a number, show its prime decomposition and list more primes!
Don't start too high. There are faster programs!
A root algorithm
Find a square root the long way! Whole numbers only!
Recurring decimals
Use as many decimal places as you like! Try one over forty-seven!
Solve your own equations.
Yes, you must use xs! Currently under development.
An easy graph plotter.
Gives a rough outline. For Internet Explorer. Needs few instructions!
An example scattergraph.
Inspect a scattergraph. Download the data and draw a line of best fit!
Some simple sequences.
Click to generate terms. Triangle, square and Fibonacci numbers.
Tutoring and tutelage.
Click for tutoring advice. All subjects offered.
More demonstration programs.
Many of these run under Excel97, Word97 or later versions (Tools/Macro/Security settings may need adjustment):
Find the most commonly-occurring letters in your text. Click here.
Or find the size of words in your text. Click here.
Or practise your spelling with this word game, Century or its teasing variation, Conundrum .
You could improve your word-power with Synword .
And the latest word-game is tricky but rewarding:
Sevensyns runs under Microsoft Excel.
Now change back to numbers and see their average move. Click here.
Programming and darts - another demonstration Click here.
Programming and snooker - yet another demonstration, with a little fun. Click here.
Programming and snooker - a tricky development! Click here.
Bar codes and check digits. Calculation of ISBN and EAN check digits.
Lottery numbers. A straightforward example of a bubble sort.
These 'Teacher Resource Databases' run under Access2000:
Aspects of dates!
Aspects of numbers!
Available texts and resources:
Mathematics - A National Curriculum Reader.
Click for a synopsis and downloads.
ICT: The E-book.
Part One - Spreadsheets
Part Two - Databases
Part Three - Wordprocessing
General Studies Miscellany:
How to write a general studies essay.
Who owns what?
Congestion and journalese.
Government and diet.
Global Positioning and Trilateration
Radio frequency ID tags.
Well-documented species extinction.
Privacy and Press Intrusion.
Learning modern languages on the web.
Another web-learning link.
Resources for Practice of Language Skills
Donations
Like to make a donation? Click here for the help page.
Payments
To make a payment for services rendered, please click here.
Curriculum vitae
CV
mail@dwaustin.net
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