|Testing the pH of an acid.|
|Writing the lab report together.|
This week I decided to pilot the shared doc concept with a classic chemistry lab. We conducted an experiment in class to determine the pH of common household products using red cabbage juice, a universal pH indicator, and electronic pH probes. This fun experiment is a great introduction to acids and bases and a nice technique lab. My students tested many different products such as bleach, shampoo, saline solution, vinegar, aspirin, toothpaste, oranges, and laundry detergent. After each group had tested several of the items, we compiled all the class data to look for patterns in the pH of household products.
|No one is watching their partner write.|
After the class discussion of the lab results, I introduced the Google doc lab report concept. One member from each lab group created the file and then shared it with his/her partner and with me. Using the shared file, the lab partners worked together and contributed simultaneously to the report. The collaboration between the students was more interactive with the shared document because they could both contribute to the work at any time. I didn't see anyone looking over the shoulder of his/her lab partner watching as the work was completed. The twenty minutes of class work on this collaborative lab report seemed more productive and interactive than my previous experiments with group lab report writing.
|Red cabbage juice is a great pH indicator.|
|Collaborating on the lab report.|
This acids and bases lab reinforced for me that the flipped classroom is so much more than instructional videos. Talking to Scott and Naomi, who have three years experience with the model, really opened my eyes to the huge range of possibilities for active learning experiences in my classes. I am looking forward to meeting more teachers next week at the Flipped Classroom Workshop in Hartford, CT.