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My Flipped Class
After a class, I post a handout on Blackboard that contains the reading assignments and the learning objectives for the next class. The handout also contains a brief introduction (which few student read) and a list of vocabulary words. When I can find appropriate content, I provide links to videos. The videos that I have used include ChemTours (Norton), ThinkWell videos (Cengage) and Khan Academy videos (more about the videos later). Online homework covering the material in the reading assignment is due the night before each class. I assign on average about six problems, although the number varies depending upon the material. In class, the first exercise is a quiz that has five questions about the assigned material, two questions over the previous day's material and a bonus question that is extra credit. The students have been told that the first quiz question covers the first learning objective and so on down the list. The quizzes consist of the simplest possible questions that relate to the day's learning objectives. The role of the quiz is mostly to see if the students made any effort to internalize the learning objectives. The students work in groups of four for the quizzes and I observe that this engenders some lively discussions. After the quiz, I give the students a worksheet that contains more complicated problems. The worksheet is also done in groups of four. I spend the class time walking around the classroom helping the groups as requested. I post the answers to the quiz and worksheet questions on Blackboard. These became available a few minutes after the end of class. The next homework assignment contains problems from the previous class's material and from the new material for the next class. All of the sections of General Chemistry take group exams so the students are tested over the material on the same day using the same exam.
Since there were no lectures or required video lectures, the emphasis was on the learning objectives. I tried to make it clear to the students in the beginning that it was up to them to figure out how to learn. At the beginning of the class, we listed off a set of resources that the student had at their disposal. The poll concerns which of these that the students used and which were useful. The question on the poll was: What did you do to help yourself? I asked them to rate each of the resources that we had discussed. There were five possible answers for each resource: A = Did not use, score = 0, B = Not useful, score = 1, C = A little useful, score = 2, D = Moderately useful, score = 3, and E = Most useful, score = 4. The average score = (0*A+1*B+2*C+3*D+4*E)/100. Forty-one students from my two sections of General Chemistry II took the poll. Not all of the students who were registered in the two classes took the poll.
|Rank||Resources||Score||Use by Students(%)|
|1||Worksheets & keys||3.8||100|
|3||Study with other students||2.8||90|
|6||Hard copy textbook||2.3||88|
|8||ACS Study Guide||1.8||59|
|9||Kahn Academy videos||1.8||71|
|10||Evening tutorial sessions||1.8||63|
|14||UC Davis Wiki||1.2||49|
Notes on the resources: “Internet” was not further defined – it was meant as a catch-all for things internet but presumably not the tools named directly, such as Khan Academy Videos. The online homework was delivered the SmartWorks system from Norton. The textbook was Chemistry: The Science in Context, 4th Edition, Gilbert, Kirss, Foster, Daves, W. W. Norton & Compan, New York/London. The online textbook was delivered though the SmartWorks login. ChemTours were short (less than 10 minutes usually) animated tutorials on chemical topics assessed through the SmartWorks system. ThinkWell videos are longer, lecture-like videos from Cengage. Khan Academy videos were either assigned or found by the students. I gave two tutorial sessions per week for one hour from 5 pm to 6 pm on Monday and Wednesday and had four scheduled office hours 1-2 pm (before the chem labs) on Monday through Thursday. Office appointments were tutoring outside my regular office hours scheduled in advance by the students. The UC Davis ChemWiki was listed in the beginning as a resource. The Tutoring Center is run by Angelo State University, and usually has a chemistry tutor present.
The Fate of Videos
The Most Useful – The Top Six
The Least Useful – The Bottom Five
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