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DNA as a Binary Code: How the Physical Structure of Nucleotide Bases Carries Information
Journal Article |
The DNA triplet code also functions as a binary code. Because double-ring compounds cannot bind to double-ring compounds in the DNA code, the sequence of bases classified simply as purines or pyrimidines can encode for…
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Research and Teaching: Conceptual Change in Introductory-Level Astronomy Courses
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As part of a project to transform an introductory astronomy course (Bisard and Zeilik, 1998), the authors developed, validated, and presented a set of multiple-choice questions to hundreds of students at the University…
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Editor's Note: Ending and Beginning
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Science and Children’s editor shares thoughts regarding the current issue.
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Safer Science: Making Adjustments for Mobility-Impaired Students
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Students’ mobility impairments need to be addressed for access to and safety in science laboratories. Typical accommodations for mobility-impaired students include workstations, sinks, fume hoods, and safety eyewashes…
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Strengthening Science Departments
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Learn how teachers and chairpersons can help their departments support best practices in science.
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Practitioner Research Success!
Journal Article |
Practitioner research is an ongoing, reflective process in which inservice teachers (i.e., practitioners) ask questions about their day-to-day teaching practice, develop plans of action to investigate these questions,…
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Scope on the Skies: Welcome to Mars
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This column focuses on astronomy throughout the year. This month’s issue discusses Mars exploration.
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Idea Bank: Measuring Wavelength with a Ruler
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In the late 1960s, Arthur Schawlow, co-inventor of the laser, visited the author’s high school physics department to share some intriguing laser demonstrations. He popped colored balloons inside transparent ones, and…
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Journal Article |
Clickers were used for real-time data collection in two introductory biology laboratory courses so that students could perform statistical analysis on large data sets. Student attitudes toward this use of clickers were…
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Journal Article |
One of the most powerful technology tools available to science teachers is often the least used. A course management system (CMS) is a web-based application that provides an online distance learning platform for…
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Favorite Demonstration: More to the Color of Roses Than Meets the Eyes
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The introduction of chemical concepts through concrete examples and interest-arousing demonstrations and activities is well accepted as an engaging and effective pedagogical method (Ealy and Ealy 1995; Gilbert et al.…
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Journal Article |
Teachers can use these activities to teach students the basics of soil permeability, groundwater movement, and pollution risks. Students use inquiry to develop experiments in which they construct models, collect and…
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Journal Article |
Forensics can serve as the perfect vehicle for science exploration and learning. As part of a professional development workshop, teachers participated in a simulated archeological dig in which they had to make…
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After the Bell: Bridging the Knowledge Gap
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Driving over bridges may be a daily activity for many of us. But, do we ever consider the scientific factors that keep bridges intact and functioning when we go over them? This article offers suggestions for how to…
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Inquiry through Portable Technology
Journal Article |
Explore your world with the latest probes, sensors, and other pocket-size technology.
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