Becky created a number plumber which multiplies by 5 and subtracts 4. What do you notice about the numbers that it produces? Can you explain your findings?
Explore the relationship between simple linear functions and their graphs.
Explore Alex's number plumber. What questions would you like to ask? Don't forget to keep visiting NRICH projects site for the latest developments and questions.
Charlie has created a mapping. Can you figure out what it does? What questions does it prompt you to ask?
Have a look at the ways children from Ickford Combined School and Weeke Primary sorted these cards.
Go to last month's problems to see more solutions.
Alf and Tracy explain how the Kingsfield School maths department use common tasks to encourage all students to think mathematically about key areas in the curriculum.
Alf Coles writes about how he tries to create 'spaces for exploration' for the students in his classrooms.
There are nasty versions of this dice game but we'll start with the nice ones...