Partner Resource 1 Experience Red Light, Green Light: Forces of Friction, Roads & Tires PostedOctober 6, 2020 Posted By Teach Engineering https://www.teachengineering.org/lessons/view/cub_mechanics_lesson05 Building upon their understanding of forces and Newton's laws of motion, students learn about the force of friction, specifically with respect to cars. They explore the friction between tires and the road to learn how it affects the movement of cars while driving. In an associated literacy activity, students explore the theme of conflict in literature, and the difference between internal and external conflict, and various types of conflicts. Stories are used to discuss methods of managing and resolving conflict and interpersonal friction. Read More Q&A0
Partner Resource 2 Experiences Focus on Fabrics: Putting Materials to Good Use PostedDecember 20, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/focus_on_fabrics Students come to understand the basics of engineering associated with the use, selection, and properties of fabrics. A wide variety of natural and synthetic fibers are used in our clothing, home furnishings and in our travel and sports equipment. The specific material chosen for each application depends on how closely the properties of the material match the design needs. This activity focuses on the different characteristics of fabrics and shows students how natural and synthetic fabrics differ from one another. Students weigh the advantages and disadvantages of fabrics when considering the appropriate fabric to be used. Read More Q&A0
Partner Resource 2 Experiences Solar Water: Heat it Up! PostedJune 18, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_solarenergy_lesson01_activi... Students explore energy efficiency, focusing on renewable energy, by designing and building flat-plate solar water heaters. They apply their understanding of the three forms of heat transfer (conduction, convection and radiation), as well as how they relate to energy efficiency. They calculate the efficiency of the solar water heaters during initial and final tests and compare the efficiencies to those of models currently sold on the market (requiring some additional investigation by students). After comparing efficiencies, students explain how they would further improve their devices. Students learn about the trade-offs between efficiency and cost by calculating the total cost of their devices and evaluating cost per percent efficiency and per degree change of the water. Read More Q&A0
Partner Resource 2 Experiences Breaking Beams PostedJune 7, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_mechanics_lesson07_activity... Students learn about stress and strain by designing and building beams using polymer clay. They compete to find the best beam strength to beam weight ratio, and learn about the trade-offs engineers make when designing a structure. Read More Q&A0
Partner Resource 1 Experience Wind-Powered Sail Cars PostedMay 4, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/ucd_sailcars_activity1 Student pairs design and construct small, wind-powered sail cars using limited quantities of drinking straws, masking tape, paper and beads. Teams compete to see which sail car travels the farthest when pushed by the wind (simulated by the use of an electric fan). Students learn about wind and kinetic and renewable energy, and follow the steps of the engineering design process to imagine, create, test, evaluate and refine their sail cars. This activity is part of a unit in which multiple activities are brought together for an all-day school/multi-school concluding “engineering field day” competition. Read More Q&A0
Partner Resource 2 Experiences Seismic Waves: How Earthquakes Move the Earth PostedApril 11, 2018 Posted By Teach Engineering https://www.teachengineering.org/lessons/view/cub_seismicw_lesson01 Students learn about the types of seismic waves produced by earthquakes and how they move the Earth. The dangers of earthquakes are presented as well as the necessity for engineers to design structures for earthquake-prone areas that are able to withstand the forces of seismic waves. Students learn how engineers build shake tables that simulate the ground motions of the Earth caused by seismic waves in order to test the seismic performance of buildings. Read More Q&A0
Partner Resource 1 Experience Portable Sundial PostedApril 11, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/portable_sundial Students investigate the accuracy of sundials and the discrepancy that lies between "real time" and "clock time." They track the position of the sun during the course of a relatively short period of time as they make a shadow plot, a horizontal sundial, and a diptych sundial. (The activity may be abridged to include only one or two of the different sundials, instead of all three.) Read More Q&A0
Partner Resource 2 Experiences How High Can a Super Ball Bounce? PostedMarch 11, 2018 UpdatedMarch 12, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/ucla_superball_activity1 Students determine the coefficient of restitution (or the elasticity) for super balls. Working in pairs, they drop balls from a meter height and determine how high they bounce. They measure, record and repeat the process to gather data to calculate average bounce heights and coefficients of elasticity. Then they extrapolate to determine the height the ball would bounce if dropped from much higher heights. Read More Q&A0
Partner Resource 1 Experience Just Like Kidneys: Semipermeable Membrane Prototypes PostedMarch 8, 2018 UpdatedMarch 12, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/nds-1731-semipermeable-membrane... Using ordinary household materials, student “biomedical engineering” teams design prototype models that demonstrate semipermeability under the hypothetical scenario that they are creating a teaching tool for medical students. Working within material constraints, each model consists of two layers of a medium separated by material acting as the membrane. Read More Q&A0
Partner Resource 2 Experiences Completing the Circuit PostedMarch 5, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_electricity_lesson03_activi... In the everyday electrical devices we use — calculators, remote controls and cell phones — a voltage source such as a battery is required to close the circuit and operate the device. In this hands-on activity, students use batteries, wires, small light bulbs and light bulb holders to learn the difference between an open circuit and a closed circuit, and understand that electric current only occurs in a closed circuit. Read More Q&A0
Partner Resource 1 Experience Using Color to Enhance LED Lighting Quality PostedFebruary 24, 2018 UpdatedFebruary 27, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/gat_lighting_activity1 Students take what they know about materials, optical properties and electrons to the next level—to see how semiconductors can be used to augment light. First, they learn how light-emitting diodes (LEDs) work, which helps them to think critically about a real-world problem they are asked to solve later in the activity as if they are practicing engineers. The challenge: To design an improved LED headlight that lights the roadway without distracting oncoming drivers and passengers with the harsh, bright white light seen in many cars today. Students research the problem via an online video, article and interactive simulation, learning all about quantum dots. Then teams use small LED flashlights and pieces of red, blue, yellow and green acetate to independently experiment to come up with a model that has the potential to improve the measured visual quality of bright white LED light—their solutions to the headlight challenge. Read More Q&A0
Partner Resource 1 Experience Static Cling PostedJanuary 9, 2018 UpdatedJanuary 10, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_electricity_lesson01_activi... This hands-on activity explores the concept of static electricity. Students enact a "human diagram" of the Bohr model of an atom. Then, in pairs, they charge a comb (on hair) and use it to attract an O-shaped piece of cereal and then watch the cereal jump away when it touches the comb. They do the same with Styrofoam pellets, observing them pulling towards a charged comb, then leaping back to the table. Students gain an understanding of what's going on at the atomic level. Read More Q&A0
Partner Resource 1 Experience Using Stress and Strain to Detect Cancer! PostedDecember 19, 2017 Posted By Teach Engineering https://www.teachengineering.org/curricularunits/view/van_cancer_curricularunit Students are presented with a biomedical engineering challenge: Breast cancer is the second-leading cause of cancer-related death among women and the American Cancer Society says mammography is the best early-detection tool available. Despite this, many women choose not to have them; of all American women at or over age 40, only 54.9% have had a mammogram within the past year. One reason women skip annual mammograms is pain, with 90% reporting discomfort. Is there a way to detect the presence of tumors that is not as painful as mammography but more reliable and quantifiable than breast self-exams or clinical breast exams? This three lesson/three activity unit is designed for first-year accelerated or AP physics classes. It provides hands-on activities to teach the concepts of stress, strain and Hooke's law, which students apply to solve the challenge problem. Read More Q&A0
Partner Resource 1 Experience To Heat or Not to Heat? PostedDecember 12, 2017 UpdatedDecember 14, 2017 Posted By Teach Engineering https://www.teachengineering.org/activities/view/wsu_heat_activity Students are introduced to various types of energy with a focus on thermal energy and types of heat transfer as they are challenged to design a better travel thermos that is cost efficient, aesthetically pleasing and meets the design objective of keeping liquids hot. They base their design decisions on material properties such thermal conductivity, cost and function. These engineering and science concepts are paired with student experiences to build an understanding of heat transfer as it plays a role in their day-to-day lives. While this introduction only shows the top-level concepts surrounding the mathematics associated with heat transfer; the skills become immediately useful as students apply what they know to solve an engineering challenge. Read More Q&A0
Partner Resource 1 Experience Shades of Gray(water) PostedOctober 10, 2017 UpdatedDecember 14, 2017 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_humanwatercycle_lesson01_ac... Students are introduced to the concepts of graywater and water reuse within households. They calculate the amount of used water a family generates in one day and use a model of home plumbing to find out how much graywater is produced in homes every day. They graph their results and discuss energy efficiency implications. Students are then challenged to find ways to reduce water use within the home. Read More Q&A0
Partner Resource 1 Experience Will It Conduct? (for Informal Learning) PostedSeptember 15, 2017 UpdatedNovember 6, 2017 Posted By Teach Engineering https://www.teachengineering.org/sprinkles/view/cub_conduct Students build conductivity testers and test materials to see if they are good conductors of electricity. Read More Q&A0
Partner Resource 1 Experience Windy Tunnel PostedSeptember 15, 2017 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_airplanes_lesson02_activity... Through this activity, Bernoulli's principle as it relates to winged flight is demonstrated. Student pairs use computers and an online virtual wind tunnel to see the influence of camber and airfoil angle of attack on lift. Activity and math worksheets are provided. Read More Q&A0
Partner Resource 1 Experience Floodplain Modeling PostedSeptember 15, 2017 UpdatedMarch 21, 2019 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_natdis_lesson07_activity1 Students explore the impact of changing river volumes and different floodplain terrain in experimental trials with table top-sized riverbed models. The models are made using modeling clay in aluminum baking pans placed on a slight incline. Water added "upstream" at different flow rates and to different riverbed configurations simulates different potential flood conditions. Students study flood dynamics as they modify the riverbed with blockages or levees to simulate real-world scenarios. Read More Q&A0
Partner Resource 1 Experience Power, Work and the Water Wheel (for Informal Learning) PostedSeptember 15, 2017 Posted By Teach Engineering https://www.teachengineering.org/sprinkles/view/cub_waterwheel Students design and build water wheels. Read More Q&A0
Partner Resource 1 Experience Bridge Types: Tensile & Compressive Forces PostedAugust 29, 2017 UpdatedFebruary 26, 2018 Posted By Teach Engineering https://www.teachengineering.org/activities/view/cub_brid_lesson01_activity1 Students explore how tension and compression forces act on three different bridge types. Using sponges, cardboard and string, they create models of beam, arch and suspension bridges and apply forces to understand how they disperse or transfer these loads. Read More Q&A0