Lesson 8 Lots of Strokes Objectives: The student will: Understand that magnetic materials can be magnetized or made into magnets Understand that magnets can also be demagnetized or lose their power Understand that all magnets become gradually weaker over time Understand that there are many ways magnets can become weaker Magnetize a magnetic substance Record experiment at different stages and test for results Work cooperatively in a group Materials: 1 large nail 6 magnets 27 pairs of scissors Numerous staples 2 containers to store staples 27 of 2 different worksheets for recording Overhead Helpful Hints: Use inexpensive scissors because they are easily magnetized and demagnetized.
(Lesson; Objectives; 8 Lots of Strokes) (magnets; lose; their power) (they; demagnetized; ) (The student; will Understand; that magnetic materials can be magnetized or made into magnets Understand that magnets can also be demagnetized or lose their power Understand that all magnets become gradually weaker over time Understand that there are many ways) Context(The student will Understand,List([37, 65))):(magnetic materials; can be magnetized; ) (they; are easily magnetized; ) (Numerous staples 2 containers to store staples 27 of 2 different worksheets for recording Overhead Helpful Hints; Use; inexpensive scissors; because they are easily magnetized and demagnetized) Context(Numerous staples 2 containers to store staples 27 of 2 different worksheets for recording Overhead Helpful Hints Use,List([497, 614))):(Numerous staples 2 containers; to store; staples) (magnets; can also be demagnetized; T:Understand) (Understand; [is] power [of]; theirs)
The student will Understand,List([37, 65)) Numerous staples 2 containers to store staples 27 of 2 different worksheets for recording Overhead Helpful Hints Use,List([497, 614))
Lesson magnets they The student magnetic materials they Numerous staples 2 containers to store staples 27 of 2 different worksheets for recording Overhead Helpful Hints Numerous staples 2 containers magnets Understand
Objectives lose demagnetized will Understand can be magnetized are easily magnetized Use to store can also be demagnetized [is] power [of]
8 Lots of Strokes
their power
that magnetic materials can be magnetized or made into magnets Understand that magnets can also be demagnetized or lose their power Understand that all magnets become gradually weaker over time Understand that there are many ways
inexpensive scissors because they are easily magnetized and demagnetized
staples
T:Understand
theirs