Last week we looked at

in school.

.

Imagine a world where we used cows as currency! If we did do that everyone would be farmers!

To be currency an object has to have value but has to be easy to exchange.

Now I'm going to talk about security. Security is important because otherwise people would copy notes and be millionaires or billionaires without even trying.The most secure notes are distinctive,detailed and hard to copy.We saw some examples of notes from around the world . They were Canadian and Australian.

We decided our class currency name should be Solar stars. Our notes design was the world with Mr Williams's signature and a quote saying"Don't do to much target work."