Strategy:
Each student is to have a specimen jar in front of them at start of class
with a 3 by 5 card. They examine the specimen very closely. They are next
asked to write down a careful description of the specimen on the card. When
this has been completed students will hand in their cards. The instructor will
mix up the cards and then pass them out to the class again. The students will
read the cards and then try to match them to the specimen.