Misconception.ppt

8/21/2019 Misconception.ppt

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MISCONCEPTIONS INPHYSICS

and how to help students overcome themNurulhuda A.R.

SFP6044 PCK for Introductory Physics


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Elicitation of Ideas

Nurulhuda A.R.SFP6044 PCK for Introductory Physics

For each of the following statement, state

whether it is true or false

If it is false, state the accurate conception


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True or False?

1. Hotter objects contain more heat than colder

objects.

2. Heavier objects always fall faster than lighter

objects.

3. Light objects float while heavy objects sink.

4. Objects float because theres air in them.

5. An object that is thrown upwards continue tomove upwards because the force applied by

the hand is still acting on it

.


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What is a science

misconception?


Strongly held cognitive structures that aredifferent from the accepted understandingin a field, that are presumed to interferewith the acquisition of new knowledge

(Hasan et al., 1999)

Kefahaman/tanggapan/kepercayaan yang

berbeza daripada kefahaman sains yangditerima pakai pada satu-satu masa (yangmembawa maksud satu kesalahan)


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Characteristics of

misconception


Strongly held, in the sense that the conceptionis resistant to change

Relatively stable, in the sense that theconception showed up repeatedly underdifferent contexts to justify or explain aphenomenon

Usually result from everyday experience(perceptually based on everyday experiencesgained from culture and use of language) andover generalization of a correct conception, or

lack of understanding


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Misconception vs. simple

mistakes


Misconceptions are more than just simple

mistakes or errors

Mistakes/errors are superficial or surface

slip-ups, which can relatively easily be

remedied

Mistakes/errors are usually a result of

defective memory, mental exhaustion, or

lack of knowledge


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Examples of misconceptions


Motion implies force

This misconception can lead students to

suggest that;

a force is needed to move an object atconstant velocity, or;

the motion of an object is always in thedirection of force, or;

whenever there is motion, there must beforce


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Question that can elicit students

misconception


A stone is thrown vertically upward into

the air.

Does the acceleration of the stonechange? How? Why?

What are the forces that act on the stone

as it goes up, down, and at the very topof the trajectory?

Misconception.ppt

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