I was in the hospital for a few weeks.. And I was ...

I was in the hospital for a few weeks.. And I was already off pace beforehand due to extreme stress with this class and my regular high level classes I take at my public highschool.. I am about done with segment one and am almost to the 18 week mark.. I was wondering if could finish the first segment and get half of the math credit.. And then take the second half of the class with a new class and get the other half of the credit? Is that possible ?