TeachEngineering
Teach Engineering: Surface Tension Lab
Students extend their understanding of surface tension by exploring the real-world engineering problem of deciding what makes a "good" soap bubble. Student teams first measure this property, and then use this measurement to determine the...
TeachEngineering
Teach Engineering: Exploring Capillary Action
Students observe multiple examples of capillary action. First they observe the shape of a glass-water meniscus and explain its shape in terms of the adhesive attraction of the water to the glass. Then they study capillary tubes and...
TeachEngineering
Teach Engineering: Measuring Surface Tension
Students observe capillary action in glass tubes of varying sizes. Then they use the capillary action to calculate the surface tension in each tube. They find the average surface tensions and calculate the statistical errors.
TeachEngineering
Teach Engineering: Investigating Contact Angle
Students observe how water acts differently when placed on hydrophilic and hydrophobic surfaces. They determine which coatings are best to cause surfaces to shed water quickly or reduce the "fogging" caused by condensation.
TeachEngineering
Teach Engineering: Exploring the Lotus Effect
Students test and observe the "self-cleaning" lotus effect using a lotus leaf and cloth treated with a synthetic lotus-like superhydrophobic coating. They also observe the Wenzel and Cassie Baxter wetting states by creating and...
TeachEngineering
Teach Engineering: Growing and Graphing
Students visit a 2nd and a 4th grade class to measure the heights of older students using large building blocks as a non-standard unit of measure. They can also measure adults in the school community. Results are displayed in...
TeachEngineering
Teach Engineering: A Tasty Experiment
Students conduct an experiment to determine whether or not the sense of smell is important to being able to recognize foods by taste. They do this by attempting to identify several different foods that have similar textures. For some of...
TeachEngineering
Teach Engineering: Start Networking!
To get a better understanding of complex networks, students create their own, real social network example by interacting with their peers in the classroom and documenting the interactions. They represent the interaction data as a graph,...
TeachEngineering
Teach Engineering: Curb the Epidemic!
Using a website simulation tool, students build on their understanding of random processes on networks to interact with the graph of a social network of individuals and simulate the spread of a disease. They decide which two individuals...
TeachEngineering
Teach Engineering: Pingus Penguins: Writing Good Instructions
Students use the free computer game Pingus to learn how engineers, specifically environmental engineers, use their technical writing skills to give instructions and follow the instructions of others. Students learn to write instructions...
TeachEngineering
Teach Engineering: Citizen Science With Zooniverse
Students learn that ordinary citizens, including students like themselves, can make meaningful contributions to science through the concept of citizen science. Student groups act as engineering teams to brainstorm projects ideas for...
TeachEngineering
Teach Engineering: Studying Evolution With Digital Organisms
Students observe natural selection in action and investigate the underlying mechanism, including random mutation and differential fitness based on environmental characteristics. They do this through use of the free AVIDA-ED digital...
TeachEngineering
Teach Engineering: Evolving Tce Biodegraders
A hypothetical scenario is introduced in which the class is asked to apply their understanding of the forces that drive natural selection to prepare a proposal along with an environmental consulting company to help clean up an area near...
TeachEngineering
Teach Engineering: Competing Evolved & Engineered Digital Organisms
Students engineer and evolve digital organisms with the challenge to produce organisms with the highest fitness values in a particular environment. They do this through use of the free Avida-ED digital evolution software application. The...
TeachEngineering
Teach Engineering: Artificial Heart Design Challenge
Students are presented with a hypothetical scenario in which they are biomedical engineers asked to design artificial hearts. Using the engineering design process as a guide, the challenge is established and students brainstorm to list...
TeachEngineering
Teach Engineering: Building the Neuron
In this activity, students design and build neuron models based on observations made while viewing neurons through a microscope.
TeachEngineering
Teach Engineering: If You're Not Part of the Solution!
Students continue the research begun in the associated lesson as if they were biomedical engineers working for a pharmaceutical company. Groups each perform a simple chemical reaction (to precipitate solid calcium out of solution) to...
TeachEngineering
Teach Engineering: Accelerometer: Centripetal Acceleration
Students work as physicists to understand centripetal acceleration concepts. They also learn about a good robot design and the accelerometer sensor. They also learn about the relationship between centripetal acceleration and centripetal...
TeachEngineering
Teach Engineering: About Accuracy and Approximation
Students learn about the concepts of accuracy and approximation as they pertain to robotics, gain insight into experimental accuracy, and learn how and when to estimate values that they measure. Students also explore sources of error...
TeachEngineering
Teach Engineering: Gears: Determining Angular Velocity
Students work as engineers and learn to conduct controlled experiments by changing one experimental variable at a time to study its effect on the experiment outcome. Specifically, they conduct experiments to determine the angular...
TeachEngineering
Teach Engineering: Arctic Animal Robot
Students create four-legged walking robots and measure how far they travel across different types of surfaces. They design and create "shoes" to add to the robots' feet and observe the effect of their modifications on the net distance...
TeachEngineering
Teach Engineering: Tug of War Battle Bots
Students are introduced to the concepts of torque, power, friction and gear ratios. Teams modify two robotic LEGO vehicles by changing their gear ratios, wheel sizes, weight and engine power, while staying within a limit of points to...
TeachEngineering
Teach Engineering: Test a Beam
Students measure different types of small-sized beams and calculate their respective moments of inertia. They compare their calculations to how much the beams bend when loads are placed on them, gaining insight into the ideal geometry...
TeachEngineering
Teach Engineering: Biomimicry: Echolocation in Robotics
Students use ultrasonic sensors and LEGO MINDSTORMS NXT robots to emulate how bats use echolocation to detect obstacles. They measure the robot's reaction times as it senses objects at two distances and with different sensor threshold...