Website of the Month: Don Steward's Median
An incredible collection of problem-solving questions that enable students to deepen their understanding and mathematical fluency. Simply select the topic from the right-hand side and get thinking. An amazing resource that I use in nearly every lesson. A sure-fire way to really gets students' brains whirring.
Disclaimer: you may find these problems addictive and lose an afternoon to maths fun!
Anything else you'd like to see? Contact me on Twitter @PixiMaths or directly through the website.