Alien Baseover
Stimulus questions
What are binary numbers?
What are hexadecimal numbers?
Express different numbers in binary and hexadecimal, and show how you did it!
Our common counting system, decimals, repeats every 10 digits and so it is labelled as being base 10.
Digits of π base 10
The babylonians counted in base 60.
Base 12 is widely considered to be our 'natural' number system.
- What would happen if we were invaded by aliens who count in a different base?
- Base 2? Base 7? Base 16? Base 60? Base e?
Books in the Senior Library
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50 mathematical ideas you really need to know by Call Number: Non-Fiction 510ISBN: 9781847240088 -
A slice of Pi: all the maths you forgot to remember from school by Call Number: Non-Fiction 511ISBN: 9781849010566 -
The book of numbers : From zero to infinity, an entertaining list of every number that counts by Call Number: Non-Fiction 512.7ISBN: 9780572033316
Binary Counter
(Source of video: youtube)
Binary and hexadecimal convertor
(Source of video: youtube)
Maths is fun
This website explains Mathemathics in easy language, plus puzzles, games, quizzes, worksheets and a forum.
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Hexadecimal ColorsHexadecimal numbers are used on web pages to specify colors.
Find more information...
Have a go at finding some more information using the search engines in the boxes below. Sweet Search and ipl2 both look for useful information for students on the internet.
Here are some ideas of keywords to search for:
Kids.Net.Au - Encyclopedia - Number system
Number system
Click on the links below to read about the different number systems.
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Base 8 and Base 16A whole new way to count
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Base 16Hexadecimal (Base 16) - or Hex
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Base 20This website includes an interactive Decimal-Maya number converter.
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Base 60Base 60 (Babylonian number system)
Sweet Search - a search engine for students
Try to find out more using Sweet Search, a search engine designed to help students find reliable information.