This lesson focuses on ultrasound wavelengths and how sound frequencies are used …
This lesson focuses on ultrasound wavelengths and how sound frequencies are used by engineers to help with detection of specific distances to or in materials. Students gain an understanding about how ultrasonic waves are reflected and refracted. Students also see how ultrasound technology is used in medical devices. The activity following this lesson allows students to test their knowledge by using the Sunfounder Ultrasonic sensor and Arduino Mega Microcontroller.
Students learn about Pascal's law, an important concept behind the engineering of …
Students learn about Pascal's law, an important concept behind the engineering of dam and lock systems, such as the one that Thirsty County wants Splash Engineering to design for the Birdseye River (an ongoing hypothetical engineering scenario). Students observe the behavior of water in plastic water bottles spilling through holes punctured at different heights, seeing the distance water spurts from the holes, learning how water at a given depth exerts equal pressure in all directions, and how water at increasing depths is under increasing pressure.
In this activity, students will learn the concept of half-life of a …
In this activity, students will learn the concept of half-life of a radioactive material. Students will create and be able to recognize a graph representing the half-life of an imaginary radioactive element.
This video segment presents a variety of sounds -- from animals to …
This video segment presents a variety of sounds -- from animals to machines to musical instruments -- while introducing the basic concepts of vibration, volume, and pitch.
This inteactive lecture and series of demonstrations develops the concepts and vocabulary …
This inteactive lecture and series of demonstrations develops the concepts and vocabulary of oscillatory motion as it relates to the motion of a mass on a spring.
This series of questions before instruction, in-class peer instruction as students come …
This series of questions before instruction, in-class peer instruction as students come to understanding, and visualization of an important mathematical relationship allow students to iterate and improve their understanding of work incrementally.
This pathways explores one of the fundamental forces of nature: the Law …
This pathways explores one of the fundamental forces of nature: the Law of Universal Gravitation, first formulated by Isaac Newton. There are explanations of how to use the law to calculate forces between different bodies, as well as some application sof this law. There are questions at the end of the pathway to check for understanding of the topic.
The airplanes unit begins with a lesson on how airplanes create lift, …
The airplanes unit begins with a lesson on how airplanes create lift, which involves a discussion of air pressure and how wings use Bernoulli's principle to change air pressure. Next, students explore the other three forces acting on airplanes thrust, weight and drag. Following these lessons, students learn how airplanes are controlled and use paper airplanes to demonstrate these principles. The final lessons addresses societal and technological impacts that airplanes have had on our world. Students learn about different kinds of airplanes and then design and build their own balsa wood airplanes based on what they have learned.
This article highlights activities for elementary students that model icebergs and develop …
This article highlights activities for elementary students that model icebergs and develop an informal understanding of the concepts of buoyancy and density. Suggestions for inquiry-based activities are included.
Undergraduate Learning Assistants can be used to supplement the instructor and/or Teaching …
Undergraduate Learning Assistants can be used to supplement the instructor and/or Teaching Assistant during recitations. They may help facilitate productive group work on tutorial activities designed to help students develop conceptual understanding and problem-solving skills. In this example, we describe the use of Learning Assistants to support tutorials within recitation in two introductory science courses physics and chemistry.
Learning Assistants are used to facilitate student discussion in peer instruction during …
Learning Assistants are used to facilitate student discussion in peer instruction during clicker questions (i.e., classroom response systems), by asking Socratic questions, emphasizing reasoning, and probing student thinking.
This activity is a computer lab activity in which students use Microsoft …
This activity is a computer lab activity in which students use Microsoft Excel to create a spreadsheet capable of calculating gravity forces and acceleration values for any two objects if the masses of the objects and their separation distance are entered. Students will use their calculators to analyze numerous object pairs and make conclusions about gravity forces and accelerations on earth, on other planets, and in space.
This activity provides a complete curriculum for teaching the photoelectric effect using …
This activity provides a complete curriculum for teaching the photoelectric effect using the PhET Photoelectric Effect simulation in a large-lecture modern physics course. It includes links to powerpoint slides for two to three 50-minute lectures using Peer Instruction with clickers, and one homework assignment suitable for an online homework system. Research has demonstrated that students in classes using this curriculum have a better understanding of the photoelectric effect than students in classes using traditional instruction supplemented by a computerized tutor.
Labs and tutorials that use equipment such as circuits can be modified …
Labs and tutorials that use equipment such as circuits can be modified to use PhET simulations instead. Research shows that substituting the PhET Circuit Construction Kit simulation for real equipment in a variety of contexts leads to improved conceptual learning in the best cases, and the same conceptual learning in the worst cases. There are many advantages to using PhET simulations over real equipment: They are easy to use, so students can play around and modify the experiment quickly and easily without fear of breaking the equipment. They have productive constraints to focus attention on the most important aspects of the experiment (e.g. bulb brightness and current flow) rather than on irrelevant aspects (e.g. wire color and length). Finally, if real equipment is not available, PhET simulations provide the opportunity to do multiple experiments with a single piece of equipment: a computer.
These labs provide examples of using very open-ended questions to guide students …
These labs provide examples of using very open-ended questions to guide students in exploring a simulation and designing their own experiments. These labs can lead to a high level of quantitative thinking about data analysis.
This activity is for an introductory oceanography course. It is designed to …
This activity is for an introductory oceanography course. It is designed to allow students to use various tools (satellite images, Google Earth) to explore the shape of the sea floor and ocean basins in order to gain a better understanding of both the processes that form ocean basins, as well as how the shape of ocean basins influences physical and biological processes.
Undergraduate Learning Assistants have been used to facilitate group work in a …
Undergraduate Learning Assistants have been used to facilitate group work in a variety of ways, such as in-lecture tutorials and worksheets, group work in required recitations, and group work in optional co-seminars. This page describes some of these various ways that Learning Assistants can be used to help make a course more interactive.
Take control of a virtual car and learn how vectors are used …
Take control of a virtual car and learn how vectors are used to represent velocity and acceleration in this interactive activity developed for Teachers' Domain. Grades 6-12.
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