Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?
Imagine that the puzzle pieces of a jigsaw are roughly a
rectangular shape and all the same size. How many different puzzle
pieces could there be?
At the beginning of May Tom put his tomato plant outside. On the
same day he sowed a bean in another pot. When will the two be the
If I use 12 green tiles to represent my lawn, how many different
ways could I arrange them? How many border tiles would I need each
Follow the journey taken by this bird and let us know for how long
and in what direction it must fly to return to its starting point.
Here you see the front and back views of a dodecahedron. Each
vertex has been numbered so that the numbers around each pentagonal
face add up to 65. Can you find all the missing numbers?
Can you fill in this table square? The numbers 2 -12 were used to
generate it with just one number used twice.
The solution to this problem depends on how you thought of a
'move'. Jessica and Elijah explain their methods well but don't
agree on the answer!
Go to last month's problems to see more solutions.
This article, written for teachers, looks at the different kinds of
recordings encountered in Primary Mathematics lessons and the
importance of not jumping to conclusions!
What can you see? What do you notice? What questions can you ask?