Provide hands-on activities for practice and mastery. Check for understanding of concepts and skills by using relevant standard materials, i.e. worksheets, text problems, workbooks, teacher prepared exercises, etc.

Student practice sheets.

Objective: To have students practice recognition of a problem, hypothesis, observation based on experimentation, etc.

Activity: 1. Before going into the lab, students work first in whole class, then in cooperative groups, and lastly, alone on practice sheets which consist of varied experimental situations which are related to biology. The paragraphs contain the elements learned in the lecture such as problem, hypothesis, data, observation, conclusion. 2. Students get hands-on experience in performing a pre-designed "wet lab" which provides them with all the information they need to successfully complete the lab. Most high school biology books contain at least one such lab on the scientific method.

Assessment: Students' ability to correctly complete the practice sheets and understand the experimental design in the lab activity.