Stay on task, late work stacks up fast. Don't be afraid to ask questions. Don't wait to study until right before the test, spread out studying throughout the unit. From someone taking two AP classes, they aren't easy but with hard work, they are worth it in the end.
If you conserve or save scarce resources they will no longer be as scarce as before and more of those scarce resources will be available. Conservation can even make the scarcity of a resource nonexistent, meaning the resource is now plentiful or enough.
If Ted needs to lift a heavy load, he should NOT attempt to carry it on his head.