A bivector is a mathematical tool that helps us understand how two different directions are related. It looks like a two-sided arrow. We start by finding two arrows (or directions) that are related. We label one the "A" arrow and the other the "B" arrow. Then, we put our bivector in between them. The bivector tells us something about the relationship between the two arrows. For example, it might tell us that the two arrows are in the same direction or opposite directions. It might also tell us how far apart or close together the two directions are. We can use bivectors to help us understand different shapes and the way objects move.