The small group discussion will last for only about 3 minutes. During the discussion of the students' presentations, the teacher focuses on key concepts that students will need to know in order to move to the next stage. Terms such as unsaturated, saturated, supersaturated, oxygen levels in ppm will need to be developed. Exploration Students research data to explore the possibility of an unsaturated, saturated and supersaturated oxygen solution. Small groups are formed Students are divided into small groups of three to four students.
Students are to record their answers onto the activity sheet and each student is to plot a graph.
Advise students to select points on the graph that they suspect have high or low DO levels. Explanation Students are to make sense of their exploration. They are to find patterns and relationships and answers to questions. Students are urged to explain their findings and to demonstrate their understanding. Students are to prepare an outline of their findings.