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Activity
PBS

Pbs Teachers: Is Love in Our Dna?

For Students 9th - 10th
Participate in an online poll to discover what features instinctively guide people when choosing a mate. Consider which traits, both physical and social, are "universally" considered attractive to potential mates, and why.
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Handout
US National Library of Medicine

Medline Plus: Blood Transfusion

For Students 9th - 10th
This site explains situations which call for blood transfusions and describes possible safety risks of this procedure. It describes how this procedure occurs and provides a discussion of possible blood substitutes.
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Whiteboard
ClassFlow

Class Flow: Estimation

For Teachers 4th - 6th Standards
[Free Registration/Login Required] After this lesson, students will be able to solve problems using a variety of mental math strategies.