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Ask the Experts -- February 2005
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The Experts will provide the answers to your burning science questions! In this month's column, they answer the questions, What is a black hole? and Can a black hole pull in another black hole?
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The Case of the “Tainted” Taco Shells
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This case study introduces students to the use of genetically modified foods. Students learn how genetically modified plants are made, and then they read primary literature papers to evaluate the environmental, economic…
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Point of View: A Case for Narrative Writing in Science Courses
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Some time ago, the author participated in a faculty seminar on Writing in the Disciplines with colleagues from the sciences. This seminar was very productive for all participants and resulted in a number of creative…
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Teacher's Toolkit: Recommendations for Using Computers in Science Classes: Making a Positive Impact
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This column provides how-to strategies and practical advice for the science teacher. This month’s issue provides three examples of using computers and scientific models to prepare for or engage in science lab activities.
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After the Bell: The Science and Mathematics of Nature
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Sometimes it is difficult to show students that science and mathematics are natural parts of life. The activities in this article can help students take a broad view of their world through careful observation and…
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Student Evaluations That Generate More Questions Than Answers
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As a chemical educator, one of the author’s primary goals is to provide students with tools for effective learning, hopefully doing so in an engaging, motivating, and incrementally challenging experience. In her quest…
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The sight of young children eagerly reaching for and eating string beans, carrots, lettuce, radishes, and even raw beets and onions is an incredibly satisfying one for a science teacher. The experience of growing food…
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Learn about the partnership formed between students from Purdue University’s, "Engineering Projects In Community Service" (EPICS) and students at Happy Hollow School in Indiana, and how the engineering projects that…
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“What starts out long but gets shorter then longer each day?” Shadows! This students clever riddles was an opportunity to investigate how the Sun’s daily position in the sky influences shadow length. Thus began a…
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Formative Assessment Probes: How Far Did It Go?
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The formative assessment probe “How Far Did It Go?” in Uncovering Student Ideas in Physical Science: 45 Force and Motion Assessment Probes (Keeley and Harrington 2010) can be used to reveal whether students recognize…
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Scope on the Skies: Summer planet watch
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This summer, all but one of the bright planets will be easily visible as evening planets during the first part of our Northern Hemisphere summer season, and then shift to the predawn skies during the latter half of…
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A bowling alley isn’t just a hangout where adolescents eat pizza, drink soda, and socialize with their friends. It can be transformed into a giant physics laboratory where students study energy transfer and calculate…
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Bridging the Gap Between Real-World Polar Science and the Classroom
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The International Polar Year—Research and Educational Opportunities in Antarctica for Minorities (IPY-ROAM) program was designed to increase minority participation in polar science by immersing participants in an…
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“Yuuuck!” “Gross!” “Cool!” The response to slugs is never indifference. These slimy creatures are perfect for captivating students’ imagination and curiosity, and they are ideal subjects to introduce investigative…
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River Walk: A community-oriented nature project
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In this activity, the Tongue River is a natural teaching focus because the school is named for the river and everyone crosses over it to get to school. During the addition of a town park on the banks of the river,…
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