Can you sketch triangles that fit in the cells in this grid? Which ones are impossible? How do you know?
Use your knowledge of place value to try to win this game. How will you maximise your score?
Here is an interesting property about two sets of digits. Can you work out what the digits might be?
What do you think is going to happen in this video clip? Are you surprised?
Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?
What happens if you join every second point on this circle? How about every third point? Try with different steps and see if you can predict what will happen.
Amy has a box containing domino pieces but she does not think it is a complete set. Which of her domino pieces are missing?
Katie had a pack of 20 cards numbered from 1 to 20. She arranged the cards into 6 unequal piles where each pile added to the same total. What was the total and how could this be done?
Sally and Ben were drawing shapes in chalk on the school playground. Can you work out what shapes each of them drew using the clues?
One quarter of these coins are heads but when I turn over two coins, one third are heads. How many coins are there?
