Here is an idea for a vertical garden in a classroom (plus a fish tank). This could also work in other places -- homes, places of worship, community centres, etc. Maybe even outdoors? With a mesh covering over the fish tank, the cats couldn't get in.
“When will I ever need algebra in the real world?” This is a direct quote from my 14 year old self (I’m sure you too thought something similar!), I thought the same about trigonometry, geometry, long division all things maths related.