Download lesson 1

The practice at school was very useful for me. I’ve got many new ideas about motivation of the
students, using technologies on the lessons, problem solving teaching and
. Especially
interesting for me was working to develop my homeschool lesson plan given by me to IREX. I’d
expected to improve my lesson by using the computer simulation of experiments, but physics
teacher from Oviedo high school helped me to develop my lesson plan in another way.
Home school lesson plan
Magnetic effect of current. Oersted experiment. Magnetic field of conductor.
Lesson 2
Objectives:
 acquaint with the history of the study of magnetic field;
 familiarize with Oersted experiment;
 show the relation between electricity and magnetism;
 teach to determine the direction of the magnetic field lines current conductor and current
solenoid
Materials needed: current source, straight wire, electric key, connected wires, magnetic arrow,
iron fillings, the straight wire on a clear plastic stand, the solenoid on a clear plastic stand
Procedure
I. Checking homework
II. Warm up
1. “Yes”/”No” testing:
1. The magnet attracts iron bodies only.
2. The magnetic field is strongest in the center of the magnet.
3. If you spray a magnet, it would be two magnets.
4. The magnetic properties of the magnet increase with heating.
5. North and South poles of magnets attract.
6. The magnetic needles always locate along magnetic field lines.
7. South pole of magnetic needle indicates the direction of magnetic fields line.
8. Magnetic field lines using are closed.
9. Nail, placed in a magnetic field itself becomes a magnet.
10. In the north of our planet is its north magnetic pole.
11. The magnetic poles of the Earth can be determined by Polaris.
12. First studied in detail the properties of permanent magnets English scientist Isaac
Newton.
2. Checking the test.
III. Telling a lesson topic and goal-setting
IV. Presentation
1. Conducting the Oersted experiment by the teacher
2. Drawing conclusion by students in workbooks
3. Familiarizing with history of studying the relation between electricity and magnetism in a
tutorial (Oersted, Ampere)
4. Demonstrating arrangement of iron filings around the current wire by the teacher.
5. Drawing the conclusion by students in workbooks.
6. Studying the right-hand rule (to determine the direction of the magnetic field lines current
wire) on the picture of a tutorial.
7. Demonstrating arrangement of iron filings around the current solenoid by the teacher.
8. Drawing the conclusion by students in workbooks.
9. Studying the right-hand rule (to determine the direction of the magnetic field lines current
solenoid) on the picture of a tutorial.
V. Practice
Doing sums
VI. Summing up
VII. Giving the home task
Developed lesson plan
Magnetic effect of current. Oersted experiment. Magnetic field of conductor
Lesson 2
Objectives:
 acquaint with the history of the study of magnetic field;
 familiarize with Oersted experiment;
 show the relation between electricity and magnetism;
 teach to determine the direction of the magnetic field lines current conductor and current
solenoid
Materials needed: current source, straight wire, electric key, connected wires, magnetic arrow,
iron fillings, the straight wire on a clear plastic stand,
Procedure
I. Checking homework
II. Warm up
1. “Yes”/”No” testing:
13. The magnet attracts iron bodies only.
14. The magnetic field is strongest in the center of the magnet.
15. If you spray a magnet, it would be two magnets.
16. The magnetic properties of the magnet increase with heating.
17. North and South poles of magnets attract.
18. The magnetic needles always locate along magnetic field lines.
19. South pole of magnetic needle indicates the direction of magnetic fields line.
20. Magnetic field lines using are closed.
21. Nail, placed in a magnetic field itself becomes a magnet.
22. In the north of our planet is its north magnetic pole.
23. The magnetic poles of the Earth can be determined by Polaris.
24. First studied in detail the properties of permanent magnets English scientist Isaac
Newton.
2. Checking the test.
III. Telling a lesson topic and goal-setting
IV. Presentation
Posing the problem-solving question.
Safety instruction.
Activity 1
Students will work in pairs. Each pair of students will receive a baggie
containing materials needed. Allow the students ten or fifteen minutes to
explore and manipulate the materials. Have one student from each group connect
their compass with wire through the holes in the cardboard. Insert the wire
through the Fahnestock clips on both ends. Place the wire over the compass.
What happens and why?
Concept:
The electrical current flowing through a wire will create a magnetic field.
This magnetic field causes the needle to turn at a right angle to the wire.
Reverse the connections to the battery, thus reversing the direction of the
current flow, and the needle will point in the opposite direction.
Activity 2
Using the same bag of materials, the pairs of students will begin wrapping the
wire around the nail in the same direction until a foot of wire is left at both
ends. Insert the end wires into the Fahnstock clips. Hold the electromagnet
over a small pile of paper clips, tacks or other small metal objects. How many
objects does your electromagnet attract? Take the wire off the battery
terminal, and the tacks will immediately fall off.
Concept:
The current passing through the wire produces an invisible magnetic field. When
the current is cut off, the magnetic field disappears, then the molecules of
the iron return to their helter-skelter position and the nail loses most, but
not all, of its magnetism.
3. Familiarizing with history of studying the relation between electricity and magnetism in a
tutorial (Oersted, Ampere)
4. Demonstrating arrangement of iron filings around the current wire by the teacher.
5. Drawing the conclusion by students in workbooks.
6. Studying the right-hand rule (to determine the direction of the magnetic field lines current
wire) on the picture of a tutorial.
V. Practice
Doing sums
VI. Summing up
VII. Giving the home task.
In developed lesson plan most of time take students’ activity. In the beginning of the presentation
teacher uses the problem-solving method. Students conduct experiments with simple and chip
equipment; they investigate the property of current wire instead of observing the experiment,
conducting by the teacher. Stages 7-9 are removed because of lack of time. But giving the home
task the teacher asks students to predict the direction of the magnetic field lines current solenoid
using right-hand rule for current wire. The next lesson topic is “Electromagnets and their use”.
Conducting that lesson I can chek the homework and teach stages 7 – 9 of the previous lesson.
Activity 2 from developed lesson will be very helpful for studying electromagnets.