Periscope connects authentic video episodes from best-practices physics classrooms to big questions of teaching and learning. Periscope lessons are useful if you:
Periscope’s primary aim is to help physics instructors see authentic teaching events the way an expert educator does – to develop their “professional vision” (C. Goodwin, American Anthropologist 96(3), 1994). This development of professional vision is particularly critical for educators in transformed physics courses, who are expected to respond to students’ ideas and interactions as they unfold moment to moment.
By watching and discussing authentic teaching events, instructors:
Periscope is free to qualified educators at physport.org/periscope.
Each Periscope lesson includes the following materials:
The Periscope website offers a wide variety of lessons on numerous topics. Select lessons that meet your needs.
Periscope lessons are designed for use in a classroom setting that alternates whole-class discussion with small-group discussions in groups of 2-4. The main part of a Periscope lesson is cycles of
Each cycle should last 10-20 minutes, and there should be a minimum of 2 cycles. Therefore, you should schedule a minimum of 30-45 minutes for a single lesson.
You can use Periscope lessons for self-study by watching the video episode and reflecting on the sample discussion prompts. In this case, print out the handout so that you can easily refer to it while watching the episode, or open both the episode and the handout on a large screen.
The first time you use a Periscope lesson with a particular group of participants, explain to them why you will be using video of best-practices classrooms from around the country to help them learn about big issues in teaching and learning. Here are some possible reasons:
Discussions about teaching often involve values that run very deep for the participants. Maintaining a respectful and safe atmosphere is crucial not only for developing a learning community among your participants, but also for enabling your participants to identify and share their values, examine them thoughtfully, and consider other possible perspectives.
The first time you use a Periscope lesson with a particular group of participants, you might want to establish an agreement such as one of the following:
Each time you start a new Periscope lesson, give participants a sense of what the lesson will be about. This information is summarized in the lesson title and introduction. You might also share the lesson objectives with them: these are stated in the Lesson Guide for each specific lesson. This should only take a minute.
Explain that you will be watching a video episode together of students who are working on the “Task for students” that is reproduced in the box on the handout. Have participants answer the “Task for students” themselves and discuss the right answer with each other. That way they start watching the episode with a sense of what the students in the episode are thinking about.
Participants can spend very little time or a lot of time on the “Task for Students,” depending on their background. Decide how much time you want them to spend on the physics question vs. discussing the teaching issues in the episode. We usually try to keep the time for the “Task for students” down to five minutes or less.
A correct answer to the “Task for students” is in the Lesson Guide for each lesson.
The main part of a Periscope lesson is a 10-20 minute cycle of communal viewing, small-group discussion, and whole-class discussion that repeats at least twice. Each cycle of viewing and discussion should be focused on a particular question or prompt.
The first stage of each cycle is for the large group to watch the episode together.
We recommend communal viewing rather than having individuals watch the episode on separate screens, because
The second stage of each cycle is for small groups of 2-4 participants to discuss what they saw in the episode. Small-group discussions:
While participants talk to each other, you may:
After 1-5 minutes (depending on the schedule and the richness of participants’ discussions), transition from small-group to whole-class discussion with a sentence like, “Okay, I’m interested to hear what you observed.”
Alternatively, try having participants write individually in response to the prompt before small-group discussion. This can give people with a different interactional style the opportunity to respond in a different way.
The third stage of each cycle is a whole-class discussion. The purpose of the whole-class discussion is to:
The following general guidelines may be useful for facilitating whole-class discussions:
The complete cycle (communal viewing, small-group discussion or writing, large-group discussion) should repeat at least once, usually with a different prompt each time.
With more than one cycle of viewing, participants experience seeing different things in an episode than they saw the first time or reconsider inferences that they had made. Both of these experiences are important for the development of professional vision.
Each cycle of viewing and discussion addresses a particular question or prompt. There are many possible sources of questions and prompts to stimulate discussion of Periscope episodes. The first prompt, however, should always be completely open-ended.
We have found repeatedly that participants cannot focus on a specific question about a video until they have had a chance to process what they have seen in their own way. Thus, after the first time you watch the episode with participants, use a very open-ended prompt such as one of the following:
An open-ended prompt has the special benefits of
Different audiences will tend to focus on different aspects of the episode, such as:
Facilitators can also gain a sense of participants’ interests and expertise from their responses to an open-ended prompt, including their expertise with:
These natural interests and areas of expertise or development can shape the rest of the discussion.
For example, in response to the episode titled “Jump up”:
A prompt for the second cycle of viewing, and subsequent cycles, should focus participants’ attention on a particular issue or question. The lesson question (which is the title of each lesson handout) makes a good second prompt, along the lines of, “Let’s watch this again, and this time I want you to think about the students’ electrostatics ideas.”
Sometimes, the things that participants share in response to the first (open-ended) prompt pertain to the lesson question. If that is the case, we suggest you try to use their comment to segue into the lesson question. For example, if a participant notices Bridget’s statement about an “equal distribution of pluses and minuses,” you might ask, “What does that suggest about her model of electrostatic charge?”
Another source of prompts is the “sample discussion prompts” printed on the lesson handout. Usually there are more sample prompts than you would use in a single session. A facilitator using a handout prompt would transition from the whole-class discussion of the previous prompt by saying something along the lines of, “Take a look at question 3 on the handout: ‘Caleb proposes a mechanism for how charge gets from one object to another. What is the mechanism that he proposes?’ Let’s watch the video again, and this time see what you observe that addresses that question.”
There is great value in getting different groups to share their responses to the same prompt. We designed these prompts to have more than one very reasonable answer – sometimes even opposite reasonable answers. We prefer these kinds of prompts because:
We hope that different participants will see the events in the episode differently, perhaps even taking different sides on a question. Subsequent viewings may either develop consensus or affirm distinctive viewpoints.
Alternatively, sometimes when we run a large class, we subdivide the class, assigning different small groups to different prompts. This covers more territory in a shorter time.
A risk with using the sample discussion prompts on the handout is that sometimes participants treat the handout like a worksheet, jotting down short answers and moving on to the next question. If you find that this is happening in your class, you might prepare a different handout for participants without the sample prompts on it. (All handouts are editable.) In this case you might choose to print a different copy of the sample prompts out for yourself only, to keep at hand during the discussion. Sometimes when we run a class this way, we give copies of the questions to the participants at the end of the session.
Another source of discussion prompts is questions and issues raised by the participants themselves. To organize prompts generated in class:
You may find it valuable to classify (and lead the group in classifying) the contributions that you write on the board into categories. Some frequently useful categories are questions, observations, claims or inferences, and value statements.
Often, participants find themselves having markedly different responses to the same events. Distinguishing among observations, claims, and value statements is useful for providing participants with alternatives to their gut reactions. For example, identifying a particular contribution as a claim can help to transform it into an object of inquiry: participants become willing to
Often, participants conclude that the evidence does not support a clear conclusion, which can be illuminating in itself.
We have seen participants have transformative experiences in which they recognize that a certain way they had been interpreting an event is central to their implicit theory of teaching and learning. For this reason, this discussion format is a favorite of ours, especially with experienced participants. However, it also takes the greatest investment of time at the start of a cycle. With many audiences, we elect to use a lesson question or handout prompt instead.
Another class of prompts is especially worthwhile for relatively advanced inquiry – when the lesson objectives have already been achieved, or with a particularly experienced group. The following general prompts can lead to increased insight about any episode.
Prompt participants to narrow their focus by attending to only one “channel” of communication, such as:
You might ask each participant or each small group to select a different channel.
Prompt participants to take the perspective of a single student in the episode – to try to live through the episode as that person, foregrounding what they say, see, and do in their attention. You might ask each participant or each team to select a different focal person.
Yes, these are real (not staged) episodes of student learning; they are ordinary events in best-practices physics classrooms. Video is contributed to Periscope by home institutions that do their own video recording for the purpose of researching physics learning. Students have all consented to video documentation of their work and are in that sense aware of the cameras, but they normally do not attend to the fact that they are being recorded.
Periscope video is contributed to Periscope by physics programs that video record classrooms for their own reasons, typically for research. These programs collect the video ethically under supervision of their own institutional review boards. People who appear in Periscope videos have consented to have the video shared with educators. They have not necessarily consented for their video to be shared with the public. Therefore:
Download a pdf version of this Periscope Facilitator's Guide