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Journal Article

Ask the Experts -- October 2006

In this month's Ask the Experts column, the following thought-provoking question is addressed: "Why did mother nature use uracil to replace thymine in mRNA (messenger ribonucleic acid)? What is the advantage of using U instead of T in the RNA?"...

Journal Article

Building Knowledge & Intrigue: Creating an Interactive Science Museum

The energy and enthusiasm shown by young students walking through the doors of an interactive science museum is difficult to surpass. The excitement and wonder that informal science education generates were instrumental in the author’s decision to ...

Journal Article

Science Sampler: Mapping variables

One of the biggest obstacles students encounter during the inquiry process is conducting valid investigations. Many students get caught up in the questions they have, the variety of materials they have access to, and the excitement of "doing" science...

Journal Article

Idea Bank: More than Multiple-Choice

Multiple-choice questions typically dominate tests in high school chemistry classes. The modification described in this article requires students to explain their reasoning behind each multiple-choice answer. This testing format demands more grading ...