We began Lesson 80 with an entry task (included in the Lesson 80 PowerPoint) in which students were asked to consider the fate of gummy bears placed into solutions containing increasing amounts of sugar. The resulting discussion allowed us to revisit the concept of osmosis and to model what might be happening in the gummy bears (shown after soaking in solution overnight).
After recording some additional lesson-related vocabulary (solute, solvent, concentration, and molarity), students received the Lesson 80 worksheet and used the remainder of class time to acquire the data and begin filling in the table on the bottom of the front page. With SAT tomorrow for juniors, we will complete the Lesson 80 Worksheet on Thursday. Students in class tomorrow will have time to work through the assigned problems from the textbook, problems 1-10.