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intro Getting Started What numbers fit? (1) What numbers fit? (1) What number should be in each square? (1) What number should be in each square? (2) What kind of calculation do you get? (1) What kind of calculation do you get? (2) Mysterious calculations (1) Mysterious calculations (2) Mysterious calculations (3) The numbers 1 to 10 Let’s create the numbers 1 to 6! Arranging my coins Which cards? What kind of calculation do you get? (3) Turn of the dice What kind of number is it? The first time of the year Consecutive parts of 365 Apple, banana and orange The smallest number of measurements Dividing camels How many building blocks? How many diagonals are there in a hexagon? How many ‘Good mornings’? How many degrees is the angle? Find the total of the angles? Angles of a star What is the angle at the top? Find the area How much does the area increase? How far did it move? Completing the net of the regular tetrahedron What kind of shape do we get? (1) What kind of shape do we get? (2) Tetrominoes! Split them into four The shortest ribbon The total spots on the dice What is the perimeter? How many triangles are needed? The secret of the 9 times table Unusual fractions How many stamps? How large is the angle? Mirror, mirror: Isosceles triangle acknowledgements