Mr. Devereaux's students were in science lab trying to identify biomolecules: carbohydrates, fats and proteins. During the lab experience, Assistant Principal Haskins came in to evaluate the teacher and the learning environment. Ms. Haskins reacted positively to the fact that the students were conducting a hands-in investigation, but she reacted negatively to the overall classroom environment. Take a look at one lab group. Justify Ms. Haskins' concern. What procedures should Mr. Devereaux have followed before the lab began? a.
He should have checked each student group before letting them begin work as well as monitored each lab station during class. Two students in this picture should modify their appearance to maximize safety and they should better organize their work space.

b.
Mr. Devereaux should reconsider what is appropriate for the students to be wearing. Instead of lab aprons, it would be best if the students wore lab coats as well as gloves. Depending on the chemicals being used, they may also need face masks.

c.
Provide instructions for the activity. Then provide the appropriate lab equipment to her students in order to complete the activity. Although the students have on lab aprons and goggles, they are not wearing gloves.

d.
Mr. Devereaux should start each day with a clean lab. Before beginning the lab, he should have cleared away all debris and non-required materials including the books and animal skulls. The best way to prevent accidents is to eliminate hazards.