Plant growth regulators, including auxin, gibberellin, cytokinin, abscisic acid, and ethylene, are …
Plant growth regulators, including auxin, gibberellin, cytokinin, abscisic acid, and ethylene, are investigated in this learning activity to demonstrate how these chemicals (hormones) affect plant growth and development.
Plant water relations are presented in this learning activity to help participants …
Plant water relations are presented in this learning activity to help participants understand the components of water potential, explain how water moves through plants, provide examples of plant adaptations to water stress, and have a general understanding of how water potential can be measured.
The Processing Integrity Challenge makes use of game theory to help students …
The Processing Integrity Challenge makes use of game theory to help students learn how to determine relevant application controls for accounting systems to ensure processing integrity is achieved. It specifically addresses source data, data entry, processing, and output controls. The playing format is an adaptation of the television game show, Jeopardy, which is a novel way to reinforce concepts and provide immediate feedback to confirm students' knowledge.
Students are given a figure from a journal article of a northern …
Students are given a figure from a journal article of a northern blot, and are asked to interpret the results, demonstrating an understanding of both the northern blot technique and RNA processing in eukaryotic cells.
The PhET Activities Database is a collection of resources for using PhET …
The PhET Activities Database is a collection of resources for using PhET sims. It includes hundreds of lesson plans, homework assignments, labs, clicker questions, and more. Some activities have been created by the PhET team and some have been created by teachers.
The purpose, components, and functions of the respiratory system are presented in …
The purpose, components, and functions of the respiratory system are presented in this learning through disussion and visualizations. Participants learn about the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, and alveoli.
Ricardian Explorer, implemented on the internet, simulates a Ricardian trade model with …
Ricardian Explorer, implemented on the internet, simulates a Ricardian trade model with linear production technology and a CES utility function. The typical simulation has two countries and two goods. While Ricardian explorer was developed to supplement a course in international trade, it can also be used in intermediate microeconomics and microeconomic principles courses. The authors of the simulation are Alberto Isgut and Tanya Rosenblat of Wesleyan University.
This lab helps students link concepts about how rocks form with observations …
This lab helps students link concepts about how rocks form with observations about how rocks look. It is designed to help them learn rock classification in a more connected manner than is usual.
Students participate in a JiTT activity where they watch an online video …
Students participate in a JiTT activity where they watch an online video on Tahitian cooking and do self-correcting exercises to check listening comprehension. They then make note of new vocabulary to use during a culture discussion at the next class meeting.
This activity asks students to review the demographic and lifestyle statistics available …
This activity asks students to review the demographic and lifestyle statistics available at ERsys.com, and determine which city or location would provide the best consumer market opportunity for the given problem.
Advertisers constantly thrust quantitative information in our face. Product claims, store enticements, …
Advertisers constantly thrust quantitative information in our face. Product claims, store enticements, health benefits, and scores of other contexts use short quantitative arguments to catch a reader's eye (and possibly money). This example shows how one can use these ads to bring added content to a quantitative reasoning course.
A free online simulation that demonstrated the bull-whip effect, and the complexities …
A free online simulation that demonstrated the bull-whip effect, and the complexities of supply chain management, responding to changes in customer demand.
The link between a set of taxes and income distribution is an …
The link between a set of taxes and income distribution is an important, but difficult, concept taught in economics principles courses. The Tax Game simulation requires a student to set tax rates for an income tax, a property tax, a wealth tax, a payroll tax, a corporate income tax, a sales tax,and an excise tax. The student can choose any rates he or she wishes, but must achieve a given revenue target.
The text of this case is a transcript of a story broadcast …
The text of this case is a transcript of a story broadcast on NPR's All Things Considered on January 22, 1996. The story concerns Congressional debate about agricultural programs, particularly the price support program for peanuts. The story includes statements from a member of Congress as well as representatives of peanut growers and peanut processors. The peanut program includes import restrictions, a price floor and peanut growing licenses, and this case describes those and includes statements from peanut growers, processors and consumers.
This case is the transcript of the 1962 Congressional Testimony of BC …
This case is the transcript of the 1962 Congressional Testimony of BC Deuschle, President of the Scissors, Shears and Manicure Implement Manufacturers' Association, with regard to the Trade Expansion Act of 1962. Deuschle opposes the act, fearing that reduced protection will destroy his industry. The case includes all of the classic economic and political motives for protection.
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