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In this math activity, students conduct a strength test using modeling clay, creating their own stress vs. strain graphs, which they compare to typical steel and concrete graphs. They learn the difference between brittle and ductile materials and how understanding the strength of materials, especially steel and concrete, is important for engineers who design bridges and structures.

Subject:
Architecture and Design
Arts
Engineering
Science
Material Type:
Activity/Lab
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
02/19/2009
Educational Use
Rating
0.0 stars

Following the steps of the iterative engineering design process, student teams use what they learned in the previous lessons and activity in this unit to research and choose materials for their model heart valves and test those materials to compare their properties to known properties of real heart valve tissues. Once testing is complete, they choose final materials and design and construct prototype valve models, then test them and evaluate their data. Based on their evaluations, students consider how they might redesign their models for improvement and then change some aspect of their models and retest aiming to design optimal heart valve models as solutions to the unit's overarching design challenge. They conclude by presenting for client review, in both verbal and written portfolio/report formats, summaries and descriptions of their final products with supporting data.

Subject:
Career and Technical Education
Engineering
Health Science
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Michael Duplessis
10/14/2015
Educational Use
Rating
0.0 stars

This site is a great place to study the concept of "elasticity" Formulas, examples, and quiz questions are provided.

Subject:
Financial Literacy
Social Studies
Material Type:
Lesson
08/07/2023
Educational Use
Rating
0.0 stars

As part of the engineering design process to create testable model heart valves, students learn about the forces at play in the human body to open and close aortic valves. They learn about blood flow forces, elasticity, stress, strain, valve structure and tissue properties, and Young's modulus, including laminar and oscillatory flow, stress vs. strain relationship and how to calculate Young's modulus. They complete some practice problems that use the equations learned in the lesson mathematical functions that relate to the functioning of the human heart. With this understanding, students are ready for the associated activity, during which they research and test materials and incorporate the most suitable to design, build and test their own prototype model heart valves.

Subject:
Career and Technical Education
Engineering
Health Science
Science
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Michael Duplessis
10/14/2015
Educational Use
Rating
0.0 stars

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.

Subject:
Engineering
Physics
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Mark Moldwin
09/18/2014
Educational Use
Rating
0.0 stars

See a scientist talk about elasticity and brittle material using a yardstick as a mechanical analog for the lithosphere, and to show how stress is stored in-between tectonic plates. [1:57]

Subject:
Social Studies
Material Type:
Audio/Video
Provider:
Incorporated Research Institutions for Seismology (IRIS)
12/01/2023
Educational Use
Rating
0.0 stars

After conducting the associated activity, students are introduced to the material behavior of elastic solids. Engineering stress and strain are defined and their importance in designing devices and systems is explained. How engineers measure, calculate and interpret properties of elastic materials is addressed. Students calculate stress, strain and modulus of elasticity, and learn about the typical engineering stress-strain diagram (graph) of an elastic material.

Subject:
Engineering
Life Science
Mathematics
Physics
Science
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brandi N. Briggs
Marissa H. Forbes
09/18/2014
Educational Use
Rating
0.0 stars

Construct a device to measure the height of a bounced ball, then compare the bouncing heights of various types of balls. Record the results on a chart.

Subject:
Mathematics
Science
Material Type:
Lesson Plan
Provider:
PBS
12/01/2023
Educational Use
Rating
0.0 stars

After a brief history of plastics, students look more closely as some examples from the abundant types of plastics found in our day-to-day lives. They are introduced to the mechanical properties of plastics, including their stress-strain relationships, which determine their suitability for different industrial and product applications. These physical properties enable plastics to be fabricated into a wide range of products. Students learn about the different roles that plastics play in our lives, Young's modulus, and the effects that plastics have on our environment. Then students act as industrial engineers, conducting tests to compare different plastics and performing a cost-benefit analysis to determine which are the most cost-effective for a given application, based on their costs and measured physical properties.

Subject:
Engineering
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Joseph Frezzo
Peter James Baker
Sharon Holiday
10/14/2015
Unrestricted Use
CC BY
Rating
0.0 stars

Principles of Macroeconomics 2e covers the scope and sequence of most introductory economics courses. The text includes many current examples, which are handled in a politically equitable way. The outcome is a balanced approach to the theory and application of economics concepts. The second edition has been thoroughly revised to increase clarity, update data and current event impacts, and incorporate the feedback from many reviewers and adopters. Changes made in Principles of Macroeconomics 2e are described in the preface and the transition guide to help instructors transition to the second edition. The first edition of Principles of Macroeconomics by OpenStax is available in web view here.

Subject:
Economics
Material Type:
Full Course
Provider:
Rice University
Provider Set:
OpenStax College
06/29/2017
Unrestricted Use
CC BY
Rating
0.0 stars
Rating
0.0 stars
Material Type:
Module
09/20/2018
Unrestricted Use
CC BY
Rating
0.0 stars

By the end of this section, you will be able to:

Calculate the price elasticity of demand
Calculate the price elasticity of supply

Material Type:
Module
09/20/2018
Educational Use
Rating
0.0 stars

Student teams make polymers using ordinary household supplies (glue, borax, water). They experiment with the semi-solid material when warm and cold to see and feel its elastic and viscous properties. Students will begin to understand how the electrical forces between particles change as temperature or the force applied to the substance changes. Is it a solid, a liquid, or something in between? How might it be used?

Subject:
Engineering
Physics
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Jacqueline Lanfranchi
Mark Bronski
Mike Galecki
09/18/2014
Educational Use
Rating
0.0 stars

This interactive quiz from the NOVA Web site features an array of interesting facts about the nature of sound underwater.

Subject:
Science
Material Type:
Interactive
Provider:
PBS LearningMedia
11/06/2023
Educational Use
Rating
0.0 stars

Students are introduced to the concept of viscoelasticity and some of the material behaviors of viscoelastic materials, including strain rate dependence, stress relaxation, creep, hysteresis and preconditioning. Viscoelastic material behavior is compared to elastic solids and viscous fluids. Students learn about materials that have viscoelastic behavior along with the importance of engineers understanding viscoelasticity. To best engage the students, conduct the first half of the associated Creepy Silly Putty activity before conducting this lesson.

Subject:
Engineering
Physics
Science
Material Type:
Lesson Plan
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brandi N. Briggs
Marissa H. Forbes