TeachEngineering
Teach Engineering: Faucet Flow Rate
This activity allows students to determine the flow rate of a faucet in gallons per second (gaps) as well as cubic feet per second (cuffs) at three different levels (quarter blast, half blast, and full blast). By recording how long it...
Khan Academy
Khan Academy: Comparing Gdp Among Countries
GDP per capita is GDP (Gross National Product) divided by population. Since GDP is measured in a country's currency, in order to compare different countries' GDPs, we need to convert them to a common currency. One way to compare...
Khan Academy
Khan Academy: Converting Decimals to Percents
Practice expressing a decimal like 0.546 as a percent. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Converting Percents to Decimals
Practice expressing a percent like 12.3% as a decimal. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas Education Agency
Texas Gateway: Chapter 5: Comparing Gdp Among Countries
By the end of this section, you will be able to explain how GDP can be used to compare the economic welfare of different nations, calculate the conversion of GDP to a common currency by using exchange rates, and calculate GDP per capita...
Illustrative Mathematics
Illustrative Mathematics: 6.rp Converting Square Units
For this task, 6th graders must inches to feet in order to find the area of a rectangular board and explain the error in the calculations made by the board owner. Aligns with 6.RP.A.3.
Education Development Center
Tune in to Learning: What's a Percentage?
Use this site to learn about percents, and how they relate to decimals and fractions with this interactive online lesson. You will learn about percents, convert percents into fractions and decimals, and find equal parts of a whole.
CK-12 Foundation
Ck 12: Measurement: Conversion Using Unit Analysis
[Free Registration/Login may be required to access all resource tools.] Use rates and unit analysis in real-world situations when problem solving.
Other
Ask Numbers: Measurement Conversion Calculators and Charts
What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of...
The Math League
The Math League: Ratio and Proportion
This tutorial provides definitions and examples of ratios and proportions and features comparing ratios and converting rates.
The Math League
The Math League: Ratio
This site gives a definition of a ratio along with two word problems. Also shows the student how to compare ratios using fractions.
Khan Academy
Khan Academy: The Sat Math Test: Problem Solving and Data Analysis
SAT Math questions fall into different categories; one of these domains is Problem Solving and Data Analysis. These questions might ask you to create an appropriate equation from a word problem, convert units, or understand the meaning...
PBS
Pbs Learning Media: Math + Arts: Drum Beating & Foot Stomping
In this lesson, students watch African dance and calculate tempo. Students also calculate heart beats at rest and after exercise and convert beats per second to beats per minute. Media resources and teacher materials are included.
Other
Online Conversion
Conversion calculators galore! Convert just about anything from one measureable unit into another measureable unit here with over two dozen calculators. Each of the links is specific to a measureable quantity. Some examples include...
Illustrative Mathematics
Illustrative Mathematics: F Le Algae Blooms
This problem examines the growth of algal blooms in Chesapeake Bay. Young scholars build an exponential function modeling algae concentration based on the information provided, and gain an appreciation for the exponential growth...
CK-12 Foundation
Ck 12: Arithmetic: Conversion of Decimals, Fractions, and Percent
[Free Registration/Login may be required to access all resource tools.] Learn how to convert between percentages, decimals, and fractions.
National Council of Teachers of Mathematics
The Math Forum: Calculating Sales Tax
Dr. Math is asked about calculating sales tax. A quick and easy to follow explanation of how it works using fractions, decimals, ratio, and percent.
TeachEngineering
Teach Engineering: Life Science
This unit covers the processes of photosynthesis, extinction, biomimicry and bioremediation. In the first lesson on photosynthesis, students learn how engineers use the natural process of photosynthesis as an exemplary model of a complex...
Geographyiq
Geography Iq
Detailed geographical information on any country is available at this site. Within the World Map section, you can get facts and figures about each country's geography, demographics, government, political system, flags, historical and...
CK-12 Foundation
Ck 12: Math Grade 4
Browse resources related to fourth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
Other
Mathpower: Math Fundamental Assignments
Math variety of concepts, this colorful website is sure to give your students the chance show what they know. Concepts covered include rounding, division with decimals, order of operations, ratio, percent, multiplication, and division of...