THE TEACHING OF CHEMISTRY


 The habits of safety learned in the laboratory may have fre-
quent application in everyday life. Some are:
 1. Properly label all containers. Before using read all labels
 carefully.
 2. Never return unused chemicals to the original containers.
 3. Use minimum quantities of materials.
 4. Develop proper methods of testing by taste and smell.
 5. Teach correct technique of handling bottle stoppers; of
 inserting glass tubing in stoppers.
 6. Arrange for proper disposal of waste material, residues,
 and broken glass.
 7. Explain fire control. Have material such as sand, water,
 or commercial extinguishers freely at hand.
 8. Have students know the location and use of first aid sup-
 plies.
 The teacher will exemplify good home practices by keeping
dangerous chemicals inaccessible until intelligent use is assured.
He should further be acquainted with antidotes and trained in
first aid. It is suggested that a chart pertaining to chemistry first
aid be on the wall in the laboratory.

 The testing program-a continuous inventory. Tests are
given:
 1. To determine background of chemical knowledge.
 2. To motivate learning by drill on symbols, formulas, and
 chemical terms.
 3. To determine remedial work needed for normal progress.
 4. To test ability to apply chemical knowledge to new situa-
 tions.
 5. To discover superior talents for understanding chemistry.
 6. To measure effectiveness of teaching methods employed
 in chemistry.
 Final grades should be based on:
 1. Results of varied tests: subjective (discussion, essay,
 thought provoking, problem solving); objective (com-