PBS
The Lowdown — Poverty Trends: What Does It Mean to Be Poor in America?
Here's a resource that's rich with learning opportunities. Future mathematicians investigate the poverty rate in America over time. They use an interactive to compare the poverty rate during the Great Recession of 2008 to other years,...
CK-12 Foundation
Solving Equations with Exponents: Money Over Time
We'd all like to see our money double. An interactive shows how an initial investment of $1,000 will increase using a constant rate of return. Scholars answer a set of challenge questions based on the situation.
Curated OER
What Does Time Have to Do with it?
Students investigate time. In this investigative lesson, students run through an obstacle course using standard timers. They record the time and apply this knowledge to problems in math. Students record their predictions, and graph...
CK-12 Foundation
Logistic Functions: Fab Fitness
Strengthen your understanding of logistic functions. Young mathematicians change the carrying capacity of a logistic function and see how function values change. The function models the number of members in a gym over time.
PBS
Real-World Proportional Relationships: Gender Wage Gap
When will the gender wage gap disappear? Scholars use a provided infographic to see trends in wage gap over time. They use ratios of women's wages to men's wages to determine which decades had the greatest change in the wage gap. The...
Curated OER
Studying Snow and Ice Changes
Students compare the change in snow and ice over a 10 year period. In this environmental science activity, students use the live data on the NASA site to study and compare the monthly snow and ice amounts on a map of the entire Earth. ...
California Education Partners
Summer Olympics
Quickly get to the decimal point. The last assessment in a nine-part series requires scholars to work with decimals. Pupils compare the race times of several athletes and calculate how much they have improved over time. During the second...
Curated OER
Mathemafish Population
It's shark week! In this problem, young mathematically minded marine biologists need to study the fish population by analyzing data over time. The emphasis is on understanding the average rate of change of the population and drawing...
Curated OER
The Tilt of the Earth And the Seasons
Fourth graders measure the change in the size of their shadow over time. They visit a fixed structure and record the date, the time, and the measurement of the length of their shadow. They do this over the course of the school year. They...
Growing Minds
Lettuce Exploration
Kathy Henderson’s book And the Good Brown Earth introduces the class to how a vegetables grows and changes over time. They use different types of lettuce to do a close study of this quick-growing vegetable. Learners consider the look,...
Balanced Assessment
Ford and Ferrari
Which is faster, a Ford or a Ferrari? The short assessment has pupils analyze graphs to determine the rates of change between the two. Individuals interpret the rates of change within the context of speeds of the cars and develop a map...
Curated OER
Earth's Rotation Changes and the Length of the Day
In this Earth's rotation and day length worksheet, students are given a table with the period of geological time, the age of the Earth and the total days per year. Students calculate the number of hours per day in each geological era,...
Curated OER
Nutria And The Disappearing Marsh
Young analysts examine changes in the nutria population, vegetation density, and marsh area over time in the wetlands of Louisiana. They import data and use the TI-73 Explorer to graph and analyze the effects of nutria on marsh loss.
Curated OER
Mathematics in Bioengineering: Its Application for Today's Students
High schoolers explore the different fields of bioengineering. They will create and interpret graphs from cancel cells data. They then calculate the amount of drugs found in blood and eliminated by the body over time.
Curated OER
Changes in Latitudes, Changes in Attitudes
Sixth graders discuss how people, society, and technology change over time through a unit of integrated lessons. In these changes in society lessons, 6th graders discuss the answers to many questions about how changes effect the...
Curated OER
How Many Penguins Does It Take? Studying Carrying Capacity and Limiting Factors
How does a population's habitat determine the size of that population? Teach learners about carrying capacity and limiting factors with an engaging roleplay activity. Class members pose as a colony of penguins who must gather food amidst...
Curated OER
The Demographics of Immigration: Using United States Census Data
Students work together to analyze United States Census data on immigration. They compare and contrast the data and determine how immigration numbers have changed over time. They calculate percentages and make their own conclusions...
Curated OER
Counting Money and Making Change
Students count collections of coins and one-dollar bills. They solve problems and learn to use the dollar sign ($) with the decimal point to represent money amounts. This lesson is important as a foundation for future math concepts in...
Illustrative Mathematics
The Price of Bread
As part of an initiative to strengthen our young adults' financial understanding, this problem explores the cost of bread and minimum wage since the 1930s. Learners are asked to find the percent increase from each year and compare it...
College Board
Calculus at the Battle of Trafalgar
All's fair in math and war. Scholars examine the Battle of Trafalgar using calculus. They set up and solve a system of differential equations to determine the number of ships remaining in each fleet over time.
Curated OER
Prairie Populations
Eleventh graders practice the Quadrat Survey Technique to analyze the biodiversity of a local plant community. They compare its biodiversity with the documented changes in biodiversity of the tallgrass prairie over time.
Curated OER
Cosmic Rays and Solar Cells
In this cosmic rays and solar cells activity, students read about how cosmic rays damage the electrical output of solar cells over time on satellites. Students use a graph of the solar power output compared to the year for the SOHO...
Curated OER
Time Management: Piece of Pie
Students examine their own lives and how well they manage their time outside of school. In this this time management lesson, students discover the amount of time they spend on other activities, and create a pie chart with that...
Curated OER
Cardiac Output, Rates of Change, and Accumulation
Students explore rates of change. In this cardiac output lesson, students measure the amount of blood being pumped by a heart. They explore the flow rate and complete an accumulation and concentration problem. They analyze data, flow...