Below is a presentation that introduces that 12 concepts of the maths problem solving toolkit.  These tools are essential for students to become effective maths problem solvers.

Be sure to download the A3 and A4 posters associated with this also to put up around your classroom.  This resource is suitable for students of all ages and should be touched upon at least twice per year.

If you cant view slideshare at your school feel free to downlaod the PowerPoint here.  Hope you enjoy it and be sure to leave some feedback if you have any further suggestions.