I need a figure for the fish population in a lake. How does it help to catch and mark 40 fish?
This problem offers you two ways to test reactions - use them to investigate your ideas about speeds of reaction.
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
Can you guess the colours of the 10 marbles in the bag? Can you develop an effective strategy for reaching 1000 points in the least number of rounds?
Can you tangle yourself up and reach any fraction?
In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?
What does this number mean? Which order of 1, 2, 3 and 4 makes the highest value? Which makes the lowest?
Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?
