
Year 9 Being curious
-
problemSeven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?
-
problem
Cosy corner
Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning? -
problem
Opposite vertices
Can you recreate squares and rhombuses if you are only given a side or a diagonal?
-
problem
What numbers can we make now?
Imagine we have four bags containing numbers from a sequence. What numbers can we make now?
-
-
problem
Cola can
An aluminium can contains 330 ml of cola. If the can's diameter is 6 cm what is the can's height?
-
problem
Which solids can we make?
Interior angles can help us to work out which polygons will tessellate. Can we use similar ideas to predict which polygons combine to create semi-regular solids?
-
problem
What's it worth?
There are lots of different methods to find out what the shapes are worth - how many can you find?
-
problem
Semi-regular tessellations
Semi-regular tessellations combine two or more different regular polygons to fill the plane. Can you find all the semi-regular tessellations?
-
problem
Marbles in a box
How many winning lines can you make in a three-dimensional version of noughts and crosses?