Teachers loved to offer well-meaning advice and nuggets of wisdom to guide you, but often missed the mark entirely. Whether ...

You start with 444 154 sugar beans in a bag. The bag tears and beans fall out as you walk: 1 bean in the 1st metre, 2 in the 2nd, 3 in the 3rd, and so on (one more bean per metre). How many metres ...

Simultaneous equations are two linear equations that can be solved using bar models. By remembering that the same letter will always have the same value we can work out the missing values. To solve ...