How does the position of the line affect the equation of the line? What can you say about the equations of parallel lines?
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?
This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.
Crosses can be drawn on number grids of various sizes. What do you notice when you add opposite ends?
How many pairs of numbers can you find that add up to a multiple of 11? Do you notice anything interesting about your results?
Investigate what happens to the equations of different lines when you reflect them in one of the axes. Try to predict what will happen. Explain your findings.
Investigate what happens to the equation of different lines when you translate them. Try to predict what will happen. Explain your findings.
Can all unit fractions be written as the sum of two unit fractions?
Can you arrange the numbers 1 to 17 in a row so that each adjacent pair adds up to a square number?
A country has decided to have just two different coins. Which totals can be made? Is there a largest total that cannot be made? How do you know?
