Variables And Their Controlsby: John Haysom

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From an early age, children have a good idea of what being fair means. In a fair test, everything is treated in the same way (controlled), apart from that which is deliberately changed or varied. In this way, scientists can determine whether a change makes a difference. This chapter builds on the idea of the fair test and introduces the notion of controlled experimental conditions. In the second lesson, Finding Out How Much It Matters, attention is focused on the systematic variation of one variable. This sample chapter also includes the Table of Contents, Note to Teachers, Acknowledgments, About the Author, Introduction, and Index.

  • Elementary
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  • High
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Reviews (2)
  • on Tue Dec 04, 2012 10:25 PM

The chapter provides a great deal of backgound about how to teach inquiry. Then it moves int the concept of variables and a fair test. There is information about lessons, but the information seems to be incomplete.

Susan German  (Hallsville, MO)
Susan German (Hallsville, MO)

  • on Tue Nov 19, 2013 8:34 PM

This concept was a bit of a stretch for me. I didn't care much for the correlation/analogies. It might work for older students, but I'm not sure that I would be successful in using this text properly.

Myetta A  (Homewood, IL)
Myetta A (Homewood, IL)

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