Save guides, add subjects and pick up where you left off with your BBC account. A Carroll diagram is a chart that helps us organise things into groups that are similar. It is used to clearly show ...

A new rose has blossomed in the garden of mathematics: a flowery Venn diagram for 11 sets of objects. Venn diagrams use overlapping circles to show all possible relationships between sets.

I know I’m a total nerd for doing this, but I often apply this theory to my personal life and to the world around me. A Venn diagram is not just a teaching tool; it has amazing real life ...