Curated OER
Ratio and Rate
In this Algebra I activity, students solve problems in which they differentiate between a ratio and a rate. The nine page activity contains explanation, worked examples, and seventeen problems. Answers are not included. ...
Curated OER
Horatio's Ratios
View a PBS video entitled Horatio's Drive and explore Horatio's Ratios. Collaborative learners form groups to use Mapquest to determine distances covered. They generate the mathematical averages, ratios, and rates in order to calculate...
Curated OER
Minority Graduation Rates: A 50-50 Chance
Students conduct research on issues and interests by generating ideas and questions and by posing problems. They gather, evaluate and synthesize data from a variety of sources. In this lesson the issue is minority graduation rates.
Curated OER
Body Balance
Examine measurable characteristics of objects to build an understanding of the different ways you can discuss an object's size when comparing it to other objects. After whole group instruction, the class compares and organizes several...
Curated OER
Linear and Exponential Functions
This comprehensive unit on linear and exponential functions provides numerous clearly-written worksheets. Topics include graphing linear equations, solving systems of equations algebraically and by graphing, identifying the domain and...
Illustrative Mathematics
Buying Bananas, Assessment Version
Practice with unit rates, proportions, and ratios when Carlos purchases an amount of bananas. Learners must interpret a graph to decide whether points on the same line represent similar proportional relationships. Use with lesson plans...
Mathematics Vision Project
Module 3: Arithmetic and Geometric Sequences
Natural human interest in patterns and algebraic study of function notation are linked in this introductory unit on the properties of sequences. Once presented with a pattern or situation, the class works through how to justify...
Constitutional Rights Foundation
Unemployment and the Future of Jobs in America
Unemployment: The job of the future. The resource, designed for high school scholars, explains unemployment rates, recessions, and job trends that are impacting employment in the United States. Academics explore potential careers of the...
Federal Reserve Bank
Lesson 4: Back to School
Based on your current level of human capital, how long would it take you to earn $1,000,000? What about your potential human capital? Learners explore the importance of education and experience when entering the workforce, and compare...
DocsTeach
The New Deal: Revolution or Reform?
Scholars weigh in on FDR's New Deal policies in an in-depth activity. The resource uses historical documents to explore whether the New Deal polices were reformatory or revolutionary. Learners review documents, rate them using a scale,...
Noyce Foundation
Snail Pace
Slow and steady wins the race? In the assessment task, scholars calculate the rates at which different snails travel in order to find the fastest snail. Hopefully, your class will move much more quickly in finishing the task!
EngageNY
The Computation of the Slope of a Non-Vertical Line
Determine the slope when the unit rate is difficult to see. The 17th part of a 33-part series presents a situation that calls for a method to calculate the slope for any two points. It provides examples when the slope is hard to...
American Chemical Society
Evaporation
This is one in several lessons that explore the relationship between temperature and phase changes of water. After some discussion, elementary physical scientists place wet paper toweling on a hot and a room-temperature water bag...
Noyce Foundation
Cereal
Find the best protein-packed cereal. The short assessment task covers equivalent and comparing ratios within a context. Pupils determine the cereal with the highest ratio of protein. A rubric helps teachers with point allotments for...
The New York Times
Understanding the Mathematics of the Fiscal Cliff
What exactly is the fiscal cliff? What are the effects of changing income tax rates and payroll tax rates? Your learners will begin by reading news articles and examining graphs illustrating the "Bush tax cuts" of 2001 and 2003. They...
California Academy of Science
California's Climate
The United States is a large country with many different climates. Graph and analyze temperature and rainfall data for Sacramento and Washington DC as you teach your class about the characteristics of Mediterranean climates. Discuss the...
National Wildlife Federation
Stifling, Oppressive, Sweltering, Oh My!
Looking for a hot date? Pick any day in August, statistically the hottest month in the United States. The 15th lesson plan in the series of 21 instructs pupils to investigate the August 2007 heat wave through NASA data, daily temperature...
Baylor College
Greenhouse S'Mores
Your class will agree that this is the best way to demonstrate the greenhouse effect: making solar s'mores! Using a clear plastic cups as mini atmospheres, lab groups compare how adding different materials affects the melting rate of...
Consortium for Ocean Science Exploration and Engagement (COSEE)
Ocean Acidification: Whats and Hows
Open this lesson by demonstrating the production of acidic carbon dioxide gas by activated yeast. Emerging ecologists then experiment with seashells to discover the effect of ocean acidification on shelled marine organisms. They measure...
Global Oneness Project
Citizen Photojournalism
Matt Black's photo essay, "The Geography of Poverty" provides a shocking reminder of the poverty that exists in the United States. The resource not only focuses attention on poverty but also conditions that have given rise to situation...
Curated OER
Ratio and Proportion
Students explore ratios and proportions. In this ratios lesson, students work in groups to identify the ratio of boys to girls, as well as the ratio of vowels to consonants in their names. Given a bag of candy, students work in groups to...
Curated OER
A Tall Story
Students investigate the growth rate of a man named Bob Wadlow. In this growth rate of a man lesson, students determine if the growth rate of this particular man was normal or abnormal. Students bring in data of their height...
Curated OER
Financial Wizard
Students determine the best way to earn money. In this financial wizard lesson, students read a story. They compare different jobs, the rate of pay for each job and the number of hours required to do the job. Students...
National Research Center for Career and Technical Education
Business Management and Administration: Compound Interest - A Millionaire's Best Friend
Many math concepts are covered through this resource: percentages, decimals, ratios, exponential functions, graphing, rounding, order of operations, estimation, and solving equations. Colorful worksheets and a link to a Google search for...