Building an Electric Motor
- Teacher will provide a Nearpod pin for students to join the lesson and instruct them to play with the Faraday's Law PhET simulation.
- Teacher will then use the Nearpod presentation's collaborate feature to solicit comments about what they learned through the simulation. And why they think that the simulation behaved the way that it did when they changed those variables. They may even comment on why they believe this happened if there is time.
- Students will be given a Nearpod pin to join the session and instructed to play with the variables of the simulation.
- Students will then post comments on the collaboration page of the Nearpod presentation about what they learned through the simulation.
- The teacher will then instruct students to plan and conduct an investigation to provide evidence that an electric current can produce a magnetic field
- Teacher will provide a quicklab link on Showbie for students to open and follow instructions to create an electric motor. Teacher will also provide materials for the lab to the students to plan and conduct their investigation with. The materials include the following:
- D battery
- Insulated 22G wire
- 2 large-eyed, long, metal sewing needles (the eyes must be large enough to fit the wire through)
- Modeling clay
- Electrical tape
- Hobby knife
- Small circular magnet
- Thin marker
- The quicklab assignment will also ask students to explain what they felt when building the electric motor, what worked, what didn't work and why they think the loop spun. They will write their responses on Showbie.
- Students will plan an investigation to provide evidence that an electric current can produce a magnetic field with the given materials (see Teacher Instructions above). Those plans will then be submitted through Showbie for approval by the teacher. Once approved, the students may proceed to conduct the investigation.
- Students will be provided materials and a quicklab link in the Showbie app on how to build an electric motor.
- Students will reflect on their investigation experience and answer the following questions on Showbie app:
- How did you feel about building the electric motor?
- What worked for you in your attempt to build this electric motor?
- What didn’t work?
- Why do you think the loop spun?
- Teacher will then lead the students into a discussion about their building experience. Questions will include the following: (1) What was the battery's role in the electric motor? (2) Why did we use metal to create the loop? (3) In what conditions did the loops spin? (4) What do you imagine is happening in a microscopic level? (5) Why did the loop spin? (6) What do you think might happen by increasing the amount of loops?
- Teacher will then go through the Nearpod presentation to explain why the loop spun in the circuit while introducing the concepts and terms listed below:
- Electric current
- Electric field
- Electric motor
- Magnetic field
- The Right Hand Rule
- Electromagnetic induction
- Faraday's Law
- Teacher will then ask the students to think-pair-share about the concepts just discussed. (The teacher can also use the collaborate feature in Nearpod to have students share ideas.)
- Teacher will then use the Nearpod app to ask students to reflect/summarize what they learned through their investigation about electric current and magnetism. The teacher can then choose some to share with the class through the Nearpod app by selecting responses on Nearpod and revealing them to the class.
- Students will participate in a class discussion lead by the teacher.
- Students will then participate in a Nearpod presentation to learn concepts and terms to understand why the loops spun.
- Students will then talk with a partner about what they learned.
- Students will then reflect on the information that they learned by responding to a Nearpod prompt.
- The teacher will then task students to explain their investigations to include the new information that was covered on electric currents and magnetism during the Explain section of the lesson through the creation of an iMovie video.
- The teacher will post the rubric on Showbie for students to have guidance how to put together their video.
- Students will then modify their investigation to include the information that they learned during the Explain section of this lesson.
- Students will then explain their plan and investigation via an iMovie video presentation and publish their plans on youtube. They must post the link to their video on Showbie.
- The teacher will then provide the link to a youtube video created by another student group to each group.
- The teachers will then instruct the students to peer review each others videos and evaluate how their videos reflect the rubric provided at the beginning of the activity.
- The teacher will then bring the class together to reflect on the videos and what the students have learned.
- After submitting their own videos, students will review other groups youtube videos to evaluate the plan, investigation and an explanation of other groups results. They will record their evaluations in the Showbie app using the same rubric given to create the video.
- The students will then engage in a discussion reflecting on their evaluations of the other groups investigation and the evaluation that was given to their video. They will also reflect on what they learned.