A directory of useful objects found on the web for teaching Maths.
Identify complementary events and use the sum of probabilities to solve problems (ACMSP204) * understanding that probabilities range between 0 to 1 and that calculating the probability of an event allows the probability of its complement to be identified * identifying the complement of familiar events (for example the complement of getting a head on a coin is getting a tail, the complement of winning a game is not winning the game)