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Guest Editorial: The polished rock
Journal Article |
Saving the world is a pretty lofty goal. One that sounds so unattainable that most of us instinctively want to leave that up to the physicists, the brain surgeons, the chemists, and the environmental researchers. You…
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Lighten up your Lesson: Matter, optics, and bubbles
Journal Article |
Your students will burst with excitement as they study soap bubbles to understand the phases of matter and the reflection of light. The study of soap bubbles addresses the national Science Education Standards for grades…
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Science Sampler: Metric-asaurus—Conceptualizing scale using dinosaur models
Journal Article |
For middle school students who have seen only pictures of dinosaurs in books, in the movies, or on the internet, trying to comprehend the size of these gargantuan animals can be difficult. This lesson provides a way for…
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Systems Concepts Effectively Taught Using Systems Practices
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This article describes two lessons within the authors’ education module entitled, Ecological Networks, that successfully teaches introductory systems content to middle and high school students. To catch students’…
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The Prepared Practitioner: Constructivism and Conceptual Change, Part II
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As complex and theoretical as constructivist principles sounds, classroom application often boils down to two precepts. First, learning is an active process—it does not happen passively. Learners need to mentally…
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If Stones Could Talk...Epitaphs feed data for a unique after-school club
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Students learn science and mathematics through inquiry-based investigations using technology and the unique history of a local cemetery. This project helped students learn how to combine the learning of science and…
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Make Your Own Digital Thermometer!
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In the hands-on, guided-inquiry lesson presented in this article, high school students create, calibrate, and apply an affordable scientific-grade instrument (Lapp and Cyrus 2000). In just four class periods, they build…
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Journal Article |
A guided inquiry helps students view an equilibrium system from the particulate level.
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Journal Article |
Middle school students can develop and enhance their observation skills by participating in teacher-guided scientific inquiry activities where they observe animals that tend to act in known, predictable ways. Using…
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Journal Article |
This column provides original articles on innovations in case study teaching, assessment of the method, as well as case studies with teaching notes. This month’s issue explains how using upper-class undergraduates as…
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Journal Article |
Through a project funded by the National Science Foundation, Horizon Research has been developing assessment items for students (in the process, compiling item-writing principles from several sources and adding their…
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Commentary: Finding Purpose—Reflecting Upon Curriculum and Assessment
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An opinion piece about how the purpose of teaching plays a sginificant role in how lessons are received and valued. The challenge for teachers is to critically reflect upon the purpose of their curriculum and…
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Good Science Begins With Good Questions
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Students in a large, active-learning, freshman biology class learned to ask better questions with the aid of a new taxonomy for student questions. The taxonomy provided a tool that helped them (and the instructors) to…
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Who Wants to Make Assessment Fair?
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An assessment strategy based on the television game show, “Who Wants to Be a Millionaire,” helps teachers make grading fair. The author describes which game show strategies to apply to classroom assessment and which to…
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Scope on the Skies: Tidal forces
Journal Article |
Tidal forces are gravitational and vary between objects; in this case between the Moon and Earth. With an elliptical orbit, the Moon's gravitational influence, its tidal force, on the Earth varies with each apogee and…
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