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 | Carolina Biological Supply Company | |  | |  |  Submitted by Rose Dorer, J.J. Hill Montessori School, St. Paul, Minnesota
We have a tank of lively tropical fish and 25 just as lively first-, second-, and third-grade students. Everyone likes to care for the fish and especially enjoys feeding them. To avoid bickering, I purchased a 7-day pill dispenser from a discount store. I showed one of the older students how much fish food to place in the cells marked "M," "T," "W," "Th," and "F" and instructed the student to place the filled dispenser on the aquarium stand each Monday morning. Now students need only check the day of the week to see if anyone has fed the fish. If someone has already fed the fish, the cell for that day is empty. The result: We have a healthier aquarium and less bickering about feeding the fish--first come, first served!
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|  |  What could you possibly find in a box that makes other science teachers green with envy? Inquiries in Science™ is a new series of kits designed to meet national and state science standards and engage students using real-world scenarios. These innovative kits are easy to use--even for newcomers to guided inquiry.
>> Inquiries in Science™--Preview and Learn
>> Inquiries in Science™--Shop Now
>> Save 25% on Inquiries in Science™--Learn How |
|  |  In this lesson from our partners Discovery Education, middle school students learn about the molecular structure of DNA and much more. They construct a DNA model with inexpensive household items, learn new vocabulary, and complete a take-home activity. Includes adaptation for older students, evaluation, and an extension.
>> Building a DNA Model |
|  |  Gene regulation can be a difficult topic to understand because the control mechanisms are too small to visualize. Modeling these control mechanisms can make it easier for your students to compare different modes of gene suppression and gene induction. Here is a lesson plan to create models of inducible and repressible operons used by bacteria for protein transcript regulation.
>> Modeling Prokaryotic Operons
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|  |  In this middle school activity from our partner Discovery Education, students learn about tsunamis. With inexpensive materials, they construct a model to demonstrate how earthquakes affect sea waves. Includes vocabulary, discussion questions, evaluation, and an extension.
>> Dynamic Earth
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|  |  The rat’s body structure and organ systems are relatively similar to those of a human. This similarity provides an interesting look into mammalian anatomy and allows students to make comparisons between humans, rats, and other mammals. Here’s a guide to dissecting this versatile laboratory specimen.
>> On the Cutting Edge: Rat Dissection
>> Save 25% on Plain White Rats |
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