Students watch this you tube video to develop interest in the topic and introduce then to the concept of cell communication. Rube Goldberg machines are an excellent correlation to the signal transduction pathway and demonstrate the cascading effect, transfer of energy, and amplification of a signal during the transduction part of the pathway. Reception, transduction, and response are easily related to the activity in the video.
2 Direct Instruction
Students can walk themselves through this video lecture by Paul Andersen and take notes at their own pace. They can stop and the video and rewind as needed to enhance learning and deepen understanding. I require Cornell Notes style of note-taking with this lecture video to allow students time to go back and process the information presented in the video.
3 Guided Practice
Working in groups, students will search the Internet for videos on cell communication. They will choose one video to critique and share with the class. Depending on time and class size, groups can be small or large as needed. Students will critique the video based on it's ability to demonstrate the three parts of signal transduction pathways: reception, transduction, and response. The groups will consider what elements would be needed to demonstrate a signal transduction pathway in a movie format. They will brainstorm ways to make their own video and begin to develop ideas for a stop motion video. Videos and critiques can be submitted and shared in a Google Doc through Google Drive.
Using the website: www.polleverywhere.com to create a word cloud. Have students text words and pharses they used when creating their video. Accumulate the important terms and concepts in this word cloud. The word cloud could be used to create a concept map for Signal transduction pathways. The teacher could also ask for terms or phrases discussed in the lesson that they are still not clear on, and use those texts to create a word cloud to generate a class discussion. This discussion could then clear up and confusion or misconceptions from the activity.