These caterpillars have 16 parts. What different shapes do they
make if each part lies in the small squares of a 4 by 4 square?
Use the interactivities to fill in these Carroll diagrams. How
do you know where to place the numbers? Use the interactivities
to complete these Venn diagrams. In this investigation, you are
challenged to make mobile phone numbers which are easy to
remember. What happens if you make a sequence adding 2 each
time? How have the numbers been placed in this Carroll diagram?
Which labels would you put on each row and column? Investigate
the different ways these aliens count in this challenge. You
could start by thinking about how each of them would write our
number 7. Holly from Hermitage School sent a particularly well-
explained solution to this problem. Go to last month's problems
to see more solutions. In this article for teachers, Bernard
gives an example of taking an initial activity and getting
questions going that lead to other This article for pupils
explores what makes numbers sp