Lesson Plan EM

  Units: 10.4.

Magnetic field

School:

Date:

Teacher name:

Grade: Grade 10

Number present:

absent:

Theme of the lesson

Artificial magnets.

Solenoid

Learning objectives that are achieved at this lesson

10.4.1.4 – to make an artificial magnet empirically and explain the scopes of its application;

10.4.1.5 – to explain the factors having an effect on a magnetic field of a solenoid;

Lesson objectives

Student ‘s Acquire knowledge pertaining  to :

(i)  Naturally occurring Materials can exhibit magnetic properties

(ii) Magnetic fields and magnetic forces

(iii) Magnetic fields associated with permeant magnets

(iv) Electrical currents flowing in conductors

(v) Temporary magnets and their connection to electromagnetism

Students will acquire and apply knowledge concerning:

(i) electrical current flowing through a conductor results in a magnetic field

(ii) magnetic field strength is directly related to current magnitude (I)

(iii) an electromagnet’s strength (force) depends upon number of conductor turns (N)

(iv) construction of electromagnet

(v)  experimentally determine how temporary magnet strength varies with I and N

(vi) find magnet force constant m

Success criteria

Language objective

Language objectives:

Learners can:

·  describe both orally and in writing the basics of magnetic fields

·  explain how the strength of electromagnet is altered by current magnitude and coil turn number

·  describe how electromagnet is made

Lexicology and terminology: magnetic, magnetism, electromagnetism, poles

electrical current, north pole, south pole, field, magnetic field, magnetic flux,

flux, bar magnet, permeant magnet, electromagnet, coils, number of turns,

Language objective

Useful set(s) of phrases for dialogue/writing.

 (i) The greater the magnitude of the current flowing through a conductor the greater the magnetic field

(ii) Electromagnets are classified as temporary or artificial magnets

(iii) The strength of an electromagnet is directly proportional to current flowing and number coil turns

(iv) Electromagnets have an iron core, which helps to give it more strength

Values instilled at the lesson

During the lesson,the pupils will demonstrate creative and critical thinking for solving practical questions and problems, in order to develop their research skills. Additionally the lesson is designed to include a means of improving their trilingual communication skills also.

Cross-curricular links

ICT skills

Using of ppt, integration of ICT

Previous learning

Course of the lesson

Planned stages of the lesson

Planned activities at the lesson

Resources

Beginning

5min

                   Teacher Activity: Theme lesson introduced 

Recap on basic properties of magnets in terms of field and material types, magnetic and non magnetic

Iron,nickel, steel , plastic

Middle

15 min

 10 min

10 min

       35min

Magnets and types of magnets

Power Presentation1 “Artificial magnets”

What is solenoid?

Power Presentation1 “Solenoid”

Teacher Activity: Power Presentation and white board used to introduce terms relating to magnetic fields in relation to electromagnet construction.

Students activity: Students take notes and ask questions in an interactive way between students and teachers.

Teacher Activity:  Practical activity work sheets handed out to students 

and instructed to work in groups of two (5-6 groups).Then instructed to gather the necessary materials /equipment needed to construct and test their completed electromagnets. Advise and informationwillbe given to students on how to construct their devices.

How to make an Artificial Magnet?

Student Activity: The individual groups assemble electromagnets using the materials provided, in accordance with given practical work sheet instructions.

Teacher Activity: Students ability to construct devices continually monitored including how well they can organize and work together as a team.

Teacher Activity: Students then instructed on how to take measurements of electrical current flowing through coil in order for them to measure attractive force capabilities of their constructed electromagnets .

Student Activity

They  counting number paper clips picked up by their magnets and  finding their mass using a 2 place decimal electronic balance.

Student Activity :Students vary current flowing through their electromagnet devices, and experiment with using different solenoid coil turns (N) to access the affect on their electromagnetic force strengths 

Discussion:

Practical worksheet 2

Practical worksheet3

Magnetc fields powerpoint presentation

Practical worksheet 1

20swg gauge copper wire

nails or ferromagnetic cores  power Variable voltageD.C supply

Ammeter .

Voltmeter

Connecting wires

Paper clips

Electronicbalance

End

5 min

Feedback: Box of questions and suggestion.

Reflection:

-       What has been learned

-       What remained unclear

-       What is necessary to work on

Differentiation – how do you plan to give more support? How do you plan to challenge the more able learners?

Assessment – how are you planning to check students’ learning?

Health and safety regulations

All Students : Can recall terms and apply basic understanding of artificial and permanent magnets. Solve problems with assistance from teacher.

Intermediate ; Students can solve most of the tasks/problems relating to both electromagnets permanent magnets with minimal supervision.

Advanced: students can solve the most challenging tasks relating to all aspects of electromagnetism  without assistance.

The students can explain without  help solve different kinds of activities on solving practical problems, describe clearly  solve problems methodically.

Activity Assessment

Discussion: Solicit, integrate and summarize student responses.

Review with students optics principles Make sure everyone understands the concept electromagnetism.

After students have finished the worksheet, have them compare answers with their peers. Discuss as a class.

During the lesson ensureclassroom is well ventilated and has  good lighting,  lab safety rules given.

Reflection

Were the lesson objectives/learning objectives realistic? Did all learners achieve the LO?

If not, why?

Did my plan of differentiation work well?

Did I stick to timings?

What changes did I make from my plan and why?

Use the space below to reflect on your lesson. Answer the most relevant questions from the box on the left about your lesson. 

Summary evaluation

What two things went really well (consider both teaching and learning)?

1:

2:

What two things would have improved the lesson (consider both teaching and learning)?

1:

2:

What have I learned from this lesson about the class orachievements/difficulties of individuals that will inform my next lesson?