2 out of 3
How many ways can you find to do up all four buttons on my coat? How about if I had five buttons? Six ...?
1 out of 3
Use your knowledge of place value to try to win this game. How will you maximise your score?
2 out of 3
Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?
1 out of 3
Julia introduces the 'Lucky Dip model', and the accompanying interactivity, which take into account the impact of herd immunity.
2 out of 3
2 out of 3
L triominoes can fit together to make larger versions of themselves. Is every size possible to make in this way?
3 out of 3
Calculate probabilities associated with the Derren Brown coin scam in which he flipped 10 heads in a row.
1 out of 3
Find the relationship between the locations of points of inflection, maxima and minima of functions.
2 out of 3
When is an experiment described by the binomial distribution? Why do we need both the condition about independence and the one about constant probability?
