The purpose of this qualitative case study was to examine the nature of a first-year elementary teacher's specialized practices and knowledge for giving priority to evidence in science teaching and to explore the possible sources from which this knowledge was generated. Data included three audiotaped interviews, six videotaped classroom…

This article describes an investigation involving several designs of airplane wings in trial flight simulations based on a NASA CONNECT program. Students' experiences with data collection and interpretation are highlighted. (Contains 5 figures.)

Reading "Harry Potter and the Sorcerer's Stone" aloud to her sixth-grade students inspired this author to create a mathematics activity based on budgeting for school supplies for Hogwarts School. In that lesson, each student was assigned a name from the Hogwarts School roster and allotted a different dollar amount for his/her budget. Students…

In this article, the authors present a classic playground game called "Sharks and Fishes" to introduce second- to fourth-grade students to the concept of "predation," or the relationships between a predator and its prey. By incorporating the game in a learning cycle on predation, students not only learn about predation in a memorable way, but they…

Air pollution is no longer just a local issue; it is a global problem. The atmosphere is a very dynamic system. Pollution not only changes in chemical composition after it is emitted, but also is transported on local and global air systems hundreds and even thousands of miles away. Some of the pollutants that are major health concerns are not even…

The inquiry science process provides a perfect opportunity for students to practice relational meaning in language. As students design their experiments, negotiate their ideas with peers, and share their data and conclusions, they sharpen both their reading and written communication skills. This process needs to be mediated by having the teacher…

Writing is an integral part of science. The growth of scientific knowledge depends on scientists' ability to record their thoughts and discoveries for future scientists to build on. Everyday literacy is the basis of scientific literacy. In addition, writing about science helps students learn science. In order to transfer science concepts from what…

Poster presentations are one way scientists present their latest research findings at professional meetings. This format also works well in the classroom and gives students the opportunity to communicate the results of their experiments (perhaps the most critical portion of their studies). In a performance-based task such as a poster session,…

Teachers can easily identify what subjects their students have trouble with, whether it is transcription and translation, glycolysis and fermentation, balancing chemical equations, or vector analysis of forces acting on an object. Yet, no matter how teachers try to make these complex issues more accessible to students, or how new editions of…

On the eastern edge of the Cascade Mountain range in Washington State, high school biology students have a unique opportunity to study the elusive cougar ("Felis concolor"), a large cat native to the area. Nestled in the Cascade foothills is the city of Cle Elum, a small rural community that is expected to soon experience considerable…

For eight years, relationships with community partners have been the mainstay of a science enrichment program for secondary students. Through the use of problem-based learning, science classes use, the techniques and tools of scientists to solve authentic problems directly related to students' interests and needs. In this article, the author…

This article describes an alternative way of testing--a performance assessment--that is different both in process and goals from typical tests, but closer to what teachers believe assessment should be. Teachers who have helped to create, refine, and use this new generation of tests find them valuable because they measure the skills and concepts…

This paper describes the project "Biotech a Scuola" ("Biotech at School"), financed by the Italian Ministry of Education within the SeT program (Special Project for Scientific-Technological Education). The project involved the University of Siena, five senior and junior secondary schools in the Siena area, and a private…

Learning the wealth of information in metabolic pathways is both challenging and overwhelming for students. A step-by-step guided discovery approach to the learning of the chemical steps in gluconeogenesis and the citric acid cycle is described. This approach starts from concepts the student already knows, develops these further in a logical…

Croatian 1st-year and 3rd-year high-school students (N = 170) completed a conceptual physics test. Students were evaluated with regard to two physics topics: Newtonian dynamics and simple DC circuits. Students answered test items and also indicated their confidence in each answer. Rasch analysis facilitated the calculation of three linear…