The purpose of this article is to describe a modeling sequence about the digestive system. "What happens in your body when you have lactose intolerance?" is the initial question that will guide the activities. Students will build a 3D plaster cast of the digestive system as part of a modeling cycle through which they are expected to…

The push for project-based learning (PBL) has been at the forefront of education for the last decade. Exposure to projects even in the lower grade levels helps students learn foundational skills that will strengthen the collaborative and leadership skills that will assist them as they get older. The result of a typical PBL project requires…

Students in the intermediate grades love to talk--but not necessarily about making sense of what they are learning. How do teachers design classrooms that cultivate productive discourse? How do they get out of the way and teach children to learn? First, let's give them something to talk about. Second, teachers need to teach them how to engage in…

Metamodeling ideas move beyond using a model to solve a problem to consider the nature and purpose of a model, such as reasoning about a model's empirical basis and understanding why and how a model might change or be replaced. Given that chemistry relies heavily on the use of models to describe particulate-level phenomena, developing…

This comprehensive volume advances a vision of teacher preparation programs focused on core practices supporting ambitious science instruction. The book advocates for collaborative learning and building a community of teacher educators that can collectively share and refine strategies, tools, and practices. A renewed interest in practice-based…

Formative assessments serve to engage students in active sense-making, making them critical tools for both teachers and students. Though formative assessments may be an informal mode of assessing, they are one of the most important, especially when teaching science. As a subject, teaching science does not have the same kind of beginning-middle-end…

This practical resource takes educators through a planning process--from selecting standards to designing learning activities--that weaves together language, literacy, and science in ways that are responsive to emergent bilinguals. Drawing on extensive and current research, the authors show how secondary educators can use students' own language…

Discover how to effectively incorporate literacy instruction into your middle or high school science classroom with this practical book. You'll find creative, inquiry-based tools to show you what it means to teach science with and through writing, and strategies to help your students become young scientists who can use reading and writing to…

Polychlorinated biphenyls (PCBs) are a family of synthetic chemicals consisting of carbon, hydrogen, and chlorine atoms. PCBs have been produced commercially since 1929 in hundreds of industrial applications. Their continued production in the United States was phased out in the late 1970s, and strict disposal guidelines were regulated as adverse…

Putting an electrical circuit within an inaccessible black box and asking pupils to deduce what wiring is contained within the box based solely on the circuit's behaviour is a simple teaching idea with a long history. Problems arise when trying to build enough physical black boxes to simulate a larger number of circuits within a typical school's…

This work describes the use of a single chemical reaction to teach and connect a number of standard general chemistry course topics while also introducing students to polymer concepts. Through the study of the reaction that converts spiropyran into merocyanine, we are able to present and connect molecular orbital theory, quantum mechanics,…

Semiconductors are an important class of materials; preparing ZnO nanorods allows semiconducting properties to be easily observed. The week before lab, groups of four students take 15 min to setup two fluorine-doped tin oxide glass (FTO) slides in a zinc nitrate and hexamethylenetetramine solution stored at 90°C until the next lab. Hexagonal ZnO…

Graphing and calculating percentages are integral skills in a STEM curriculum. Teaching students how to create graphs allows them to identify numerical trends and to express results in a clear and concise manner. In this activity, students will remain engaged in the lesson by moving around the room and then work together to generate their own…

3D printers can do a lot more than just printing nice little giveaways such as keyring pendants or chess pieces. During a project at the Holbein-Gymnasium Augsburg in Bavaria, Germany, students developed a number of helpful tools for chemistry lessons and tested them in classes. Full details of these are now available for free to any teacher who…

One of the most mystifying products on the market for people at any age is the glow stick: a plastic tube that, when snapped, creates a flood of bright, brilliantly colored light without the use of electricity or significant production of heat. In this case, the chemiluminescence reaction also provides an exciting phenomenon through which we can…