Well before the exams, get the group to check that they have a complete set of notes. Always seek opportunities to praise. Learning It is not a good idea to try learning for long stretches of time without a break. The most effective time is 20-40 minutes, followed by a 5 minute break. 5 minutes break works very well.
Most people learn best by active involvement .
Skim the text, then read it, noting the main points . Then use the main points to make spider notes, developing secondary points from the main ones. Next morning, spend 2 minutes looking at your main points again to refresh your memory. Learning formulae, etc. by heart. Write them down, then say each one aloud , cover it up and try to write it again.