A common question when teaching students how to multiply positive and negative numbers is “Why is a Negative times a Negative a Positive?”
It is easy to simply say because that is the way it works; however, it is much better to teach students why this happens as opposed to rote memorization.
The following provides examples of [...]
Science Friday is a weekly science talk show, broadcast live over public radio stations nationwide from 2 - 4 PM Eastern time as part of National Public Radio’s “Talk of the Nation” programming.
Each week, they focus on science topics that are in the news and try to bring an educated, balanced discussion to bear on [...]
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This discrepant event to provides concrete evidence of the Meniscus effect of liquids in containers, along with surface tension.
Materials:
one clear glass, one small cork, and tap water.
Procedures:
Students fill glass two thirds full of water
They now place the cork in the glass of water and try to keep it floating in the center
Ask students if they [...]
Continue reading about Discrepant Events: Mysterious Floating Cork
