What about test retakes?

 Test retakes is definitely a Co-op topic.  My husband, Rob, teaches math and Physics for the local Co-op.  He has a standard math teacher approach; teens can make corrections for half credit.  I take a different approach for Biology, Anatomy, or Chemistry.  If the student earned 80% or greater, I record the test grade, but point out errors.  However, if the student missed key topics, such as an essay question about transcription-translation, the teen must correct the answer.  Any information central to the subject should be mastered. In some cases, the teen just explains the process orally.  Fine.   In Chemistry, kids frequently just bomb a test.  I have them take a similar test with different formulas or number of moles.  Again, teens need to be able to balance equations, write and name formulas, and make mole calculations.  The teen might redo the same test three times until it sticks.  I put an emphasis on mastery.  Right now, we spend 15 minutes at the beginning of nearly every Anatomy class reviewing the names of skeletal and cranial bones.  We need the information to name muscles and brain orbitals.  I’m testing orally all the time.