Here is a link explaining substitution:
https://docs.google.com/presentation/d/1XsdlWhJFcjg2EOgoddUyjtyCQIbQva7doLJzL2uuoQI/edit#slide=id.p
This week we have been doing substitution in maths. It has been cool. I liked it. It was interesting. I did the substitution. I did it good. So did other peeps. We did some group work as well, and it was... interesting.
