Activity
You could make a sort of problem tree, with solutions attached. Like: Nature => Heat => Dissipation => Fins <- List of solutions here ->


You could make a sort of problem tree, with solutions attached. Like: Nature => Heat => Dissipation => Fins <- List of solutions here ->

1 Tree-like structure of problems

You could make a sort of problem tree, with solutions attached. Like: Nature => Heat => Dissipation => Fins <- List of solutions here ->