Lesson Plan, JH G2, Science,Electric Current and Magnetic Field, Why do motors keep turning?

table:Basic information

Grade/ Subject Junior High School 2nd Grade/Science

Unit Electric current and Magnetic field

Educational guideline Electric current and its use, Electric current and magnetic field

Textbook company Tokyo Shoseki Co., Ltd.

Teacher Mitsuhiro Yano (Junior High School attached to the Faculty of Education, Wakayama University )

Overall view of the unit

https://gyazo.com/b85d1ea66268e65e1bfadc899b33bd7c

Explanatory Video(in Japanese)

https://youtu.be/_unvfVNq6HE

Appealing points from the creator

Here are some practical examples of how AR content is used in the classroom. There are two ways of utilization.

One is to "use" the contents created by the teacher, and the other is for the students to "create" their own AR contents.

In this article, we explain how to use the three types of content created by teachers with respect to motor rotation.

Note data of LoiloNote School

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【Development1】 Magnetic field of magnet

Predict the direction of a directional magnet when placed around a bar magnet and then submit

Sprinkle iron powder around a bar magnet, observe the magnetic field lines, and submit a photograph

Take the AR magnet out from the material box and observe it in three dimensions

【Development2】Magnetic field due to electric current

Pass an electric current through a straight and coiled conductor, respectively

Place a compass needle around the conductors and observe the direction of the magnetic field

https://gyazo.com/ed1b4e50423fcdde8b952d43d7b1ff85

【Development3】Electric current and magnetic field and force

Place a compass needle around the U-shaped magnet

Write down the direction of the magnetic field lines and submit

Assemble an electric swing and conduct experiment to see which direction the conductors move when you change the direction of the current or magnetic field

Take pictures, organize and submit the results of your experiment

【Development4】Making of Clip motor

Watch the movie of how to make clip motors in the resource box and then make one clip motor per person.

Take a video of it spinning for at least 10 seconds and submit it

If it spins for more than 10 seconds, it passes the test.

https://gyazo.com/5f8824847e24537ce1102881518ba461

【Development5】Think of a reason to keep turning

Take the AR motor out of the reference box and observe it in three dimensions.

Think about why it keeps turning and explain to each other in pairs

Organize your ideas again and submit them

Listen to the class presentation and resubmit

【Development6】 Move the linear motor

Predict which direction the aluminum pipe will move and move it with a hand-cranked generator

Observe the direction of movement while changing the direction of the current with AR.