Ratio and Proportion

Links

http://www.uta.fi/~ktmatu/rates.html
Currency information and a list of links to related sites.

http://www.uta.fi/~ktmatu/rate-converter.html
A currency converter that gives daily values for major currencies.

http://www.comicrelief.co.uk/
The Comic Relief website. More detail on how the money is spent, and downloadable teaching resources.

http://www.ent.iastate.edu/misc/insectsasfood.html
Insect recipes!

http://www.mathsyear2000.org/museum/floor3/gallery8/gal1_3p4.html
A set of Victorian scales, with a brief history of weighing. Includes an interactive activity in which students are asked to scale a recipe for different numbers of people.

http://www.mathsyear2000.org/museum/gallery2/gal2p1.html
‘Cup weights’. Further background on the history of weighing and an interactive estimation activity.

http://www.ex.ac.uk/cimt/dictunit/dictunit.htm
A dictionary of measures, units and conversions, focussing on British units. Includes conversion calculators, an explanation of the SI system and a brief history of measurement.

http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fib.html
The golden ratio, Fibonnaci numbers and the golden section can stimulate more work on ratio. This site has plenty of information and activities and links to other areas of the curriculum.