This activity is best done with a whole class or in a large group. Can you match the cards? What happens when you add pairs of the numbers together?
Can you each work out what shape you have part of on your card? What will the rest of it look like?
Can you each work out the number on your card? What do you notice? How could you sort the cards?
This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient.
Can you each work out the number on your card? What do you notice?
How could you sort the cards?
How would you count the number of fingers in these pictures?
We had some very detailed solutions to this problem - well done!
Go to last month's problems to see more solutions.
In this article for teachers, Elizabeth Carruthers and Maulfry Worthington explore the differences between 'recording mathematics' and 'representing mathematical thinking'.
Members of the NRICH team are beginning to write blogs and this very short article is designed to put the reasoning behind this move in context.
NRICH website full of rich tasks and guidance. We want teachers to
use what we have to offer having a real sense of what we mean by
rich tasks and what that might imply about classroom practice.