What the course teaches is carb counting, so that you are abe to match you insulin doses to the carb intake of your meals. And some other general education at the same time, but the ability to be flexiable in dosing is the main things it centres on.
You might be doing it anyway or have been taught it when first diagnosed, if carb exchange and the like was still popular then.
You do need to be on a long acting basal insulin (levemir, lantus, insultard) and a fst acting bolus insulin (novorpaid, humalog, aprida) to be able to do it though.