For my latest uni assignment we're to work in pairs to make a fairground - one person does a Ferris wheel, the other does an octopus ride and both make a ticket booth and the landscape.

I'm doing the octopus ride and while I understand in theory how it should work, I'm stumped on actually making it/animating it. The whole thing needs to rotate while the carriages rotate in the opposite direction. Think I should maybe use an expression?

I only started using Maya a few months ago and haven't done any animation except for some blocks moving around etc. Our last assignment was to model, light and render a fruit bowl so that's not exactly helpful.

Can anyone explain in really basic/simple terms how they might approach this?