LESSON PLAN

Date            :  28-03-2012
Class           : Year3
Time            : 4:10pm - 5:10pm
Enrolment    : 34 pupils
Topic           : Magnets
Subtopic      : Materials attracted by magnets.
Learning Outcomes    : At the end of the lesson, pupils should be able to
                                         1. Demonstrate that magnets attract some materials but not others.
                                     2. Record findings in a table.
                                     3. State at least 3 objects that are attracted by magnets.
Duration       : 60 minutes
Strategies    : Experiment, Discussion.
Scientific Process/Manipulative Skills and Thinking Skills: 
1. Observing         2. Classifying              3. Generating idea     4.  Communicating
5. Use and handle science apparatus and substances.

Science Attitudes and Noble Values :

1. Being cooperative

2. Being confident and independent

Teaching and Learning Resources:
1. Magnets        2.  Steel thumb-tacks      3. Ten sen coins     4.  Paper clips  
5. Pencils          6.  One sen coins

Step	Contents	Teaching and Learning Activities	Remarks
Set Induction (5 minutes)	Magnets attract some materials.	1.    Teacher demonstrates a material that can attracted by magnet and a material that is not attracted by magnet. 2.    Teacher asks questions            Can you see what is            happening?            What are  the             differences            between this two               materials can do with              the magnet? 3.    Teacher state that the lesson today is about “Materials Attracted by Magnet.”	SPS: Observation Relating TS: Attributing Generating ideasT&L Resources: Magnet Paper clip Pencil
Step 1 (20 minutes)	Materials that attracted by magnets and not attracted by magnets.	1.    Teacher shows materials such as magnets, steel thumb-tacks, coins, paper clips and pencils and pupils are required to predict either the materials can attracted by magnets or not. 2.    Teacher asks pupils to present their answers in the worksheet given.	SPS: Classifying Predicting
Steps 2 (20 minutes)	Classifying that materials attracted by magnets.	1.    Teacher asks pupils to form groups. 2.    Teacher distributes a magnet, a steel thumb-tack, a coin, a paper clip and a pencil for each group. 3.    Teacher asks pupils to identify and classify the materials given by following instruction and present their observations in the table given. 4.    Teacher asks pupils to complete the table with other materials such as steel spoon, plastic ruler. 5.    Teacher discusses and explains the finding together with pupils.	SPS: Classifying Generating idea MS: Use and handle science apparatus and substances
Step 3 (10 minutes)	Worksheet	1.    Pupils are required to complete the worksheet given. 2.    Teacher discusses the answers with pupils	SPS: Classifying Relating
Closure (5 minutes)	Summary	1.    Teacher summarizes lesson by asking: a). What are the materials that attracted by magnets?            b)What are the            materials               that are not attracted by            magnets?	SPS: Relating

What is a Magnet?

A magnet is an object made of certain materials which create a magnetic field. Every magnet has at least one north pole and one south pole.  By convention, we say that the magnetic field lines leave the North end of a magnet and enter the South end of a magnet. If you take a bar magnet and break it into two pieces, each piece will again have a North pole and a South pole. If you take one of those pieces and break it into two, each of the smaller pieces will have a North pole and a South pole. No matter how small the pieces of the magnet become, each piece will have a North pole and a South pole. It has not been shown to be possible to end up with a single North pole or a single South pole which is a monopole ("mono" means one or single, thus one pole).

Magnets are available in all sorts of shapes including discs, rings, blocks, rectangles, arcs, rods, and bars. They are made out of materials such as ceramic (strontium ferrite), alnico (aluminum, nickel, and cobalt), rare earth (samarium cobalt and neodymium) and flexible rubber-like material. Not only do the shape and material of magnets vary, so do their applications. At many companies, magnets are used for lifting, holding, separating, retrieving, sensing and material handling. You can find magnets in a car — even around your house! Magnets are used in the home to organize tools or kitchen utensils and can be found in doorbells, loudspeakers, microwaves and televisions! Business offices and schools use magnetic planning boards to display schedules and charts.

Magnets are also used in a compass to guide people if they are lost. In fact, the compass was probably the first important magnetic device discovered. Around the 12th century, someone noticed that when allowed free movement, a magnet always points in the same north/south direction. This discovery helped mariners who often had trouble navigating when the clouds covered the sun or stars.

Wah, my magnet can attract so many one sen!