Jaime Kern

Math & Science Methods

8:30 MWF

Individual Microteaching

April 21, 1999

Teacher Information

Title of Lesson:

Standards: Science (Magnetism, observing/classifying/predicting/formulating/hypothesis)

Math (computation, communication/reasoning)

Learning Styles: Logical/Mathematical, Interpersonal, Visual/Spatial

Objectives:

Academic

1. The students will hypothesize about the magnetism of objects and will discuss the results of their experiment with their group. Each student should make at least one comment or observation about the experiment.
2. The students will also graph the results of the class' experiments using a pie chart. Each student must actively participate in the formation, calculation or discussion of the pie chart.
   

Social

1. The students will use appropriate behavior in their groups as discussed in class and listed on the T-chart.

Looks Like	Sounds Like
One person talking at a time.	One voice per group talking
Objects remain on the table.	"Great idea..."
	"I never thought about that..."

Student Level: 4th Grade

Time Required: 35 minutes.

Background Information

• Opposites attract (north and south poles attract)
• The same repels (south and south repels and north and north repels)
• Nonmagnetic materials are paper, glass, silver, wood, plastic, & ordinary rocks.
• Magnetic materials are iron, nickel, and cobalt.

Prerequisite Information

• Students need to understand how to divide.
• Students need to know how to change decimals to percents.
• Students should know how to properly operate a calculator.

Materials: magnets, various objects, hypothesis sheets, paper, markers, student self-

evaluation sheets, and calculators.

Group Size: 3-4 students per group

Roles:

• Materials Gatherer
• Recorder
• Experimenter
• Reporter

Teaching Procedures

Introduction of Lesson: The class will brainstorm a list of materials that are magnetic and a list of nonmagnetic materials.

Development of Concept:

1. After the lists are brainstormed we will discuss why the students thought these materials were or were not magnetic.
2. Then I will divide the students into groups and give them their hypothesis sheets.
3. Next, the students will gather their bag of objects and hypothesize if each object is magnetic or nonmagnetic--(some could be both.)
4. After their hypotheses are complete each group will then test their hypotheses with a magnet. As they are testing their hypotheses the recorder will write down the group's observations.
5. After each hypothesis has been tested and the observations recorded, the students will discuss their group's results with the class.
6. Each group's results will be recorded on the board. As a class we will discuss their results and compare their new findings with the original class discussion.
7. Now we will compare the percentage of magnetic and nonmagnetic materials using pie charts. As a class we will figure one or two groups percentages and graph them.
8. Once the students have seen the process of finding the percentages and graphing the results, each group will be asked to figure the whole class percentage and graph the results.
9. Each group will be asked to share some information on the class results.
10. After the students have completed the activity they will each be asked to evaluate their contribution to the group.
11. When the evaluations are finished we will close class with a recap of the lesson.

Positive Interdependence:

Each student will have a role to fulfill during the activity. All students will be expected to contribute at least one thought to the experiment.

Individual Accountability:

Each student is responsible for their part of the activity.

Criteria for Success:

The students are expected to make at least one hypothesis for each object in their bag.

Expected Behavior:

The students will use proper behavior in accordance to the T-chart.

Monitoring:

As the students are completing their experiments I will roam the room and answer any questions.

Processing:

Each students will complete their self-evaluation sheet.

Conclusion:

The students will recap the day's lesson by answering questions posed by the teacher.

Evaluation:

The teacher will have the hypothesis sheet of each group to check, the pie charts, and the self-evaluation sheets, which all account for evaluation of the students.

Extensions

1. The students can read various books on magnets and magnetism and report back to the class.
2. The students can formulate their own hypothesis and perform an experiment on their own and report back to class.