# - Bad and Ugly

**This one is as old as the hills but also brand new - just spotted it trolled out when the Guardian picked up on an OFSTED report on mathematics.**

Here's the bit that got me all fired up...

**This one was spotted in a school's 'maths specialist room'.**

It seems from this information poster that '**=**' can mean "same as", "equals" or "**Total**"... two out of three aint bad. The "**Total**" part is clearly nonsense of course because we already have a perfectly good sign for that (**+**). **Read more »**

**I thought I should share some of the things that surprise or enrage me**. Clearly, I'm thinking here of mathematical strategies or resources that reinforce errors, not political, ethical or world issues.

Take, for example, the mathematical misconception that a square is somehow not a rectangle. In many quarters this is a very strongly held idea. An idea, that (by any mathematical definition) is wrong. However, it's easy to see how this error is reinforced... **Read more »**