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Topic: Ratio and Rates
All About Ratios
Dividing a quantity in a given ratio (animations)
The division of a quantity in a given ratio is demonstrated with a variety of methods. These animations are perfect for the IWB or projector. Clear and intuitive explanations gently lead students to visualise and understand the unitary method. Free.
Maths Snacks: Bad Date as ratio of words spoken
Hilarious presentation of how a date (as going out to dinner with someone with romantic intent) can be described in terms of the ratio of words spoken by each person.
Ratio and proportion
One-minute video on ratio and proportion
Why learn about ratio and proportion?
The ratio between two numbers is how many times bigger one is than the other.
Ratios, simplification and equivalence (animations)
A set of animations that can assist students to develop proportional reasoning. These animations are perfect for the IWB or projector and provide alternative ways to understand the simplification of ratios. Free,
Three different ways to solve a ratio problem
A set of flash animations that demonstrate the different ways of looking at and solving a ratio problem. Students develop their proportional reasoning by looking at a problem from several perspectives. The are step-by-step explanations can be turned off if you are presenting these animations to a class.