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CK-12 Foundation
Computing Probabilities for the Standard Normal Distribution: The FDA and Food Safety
To recall or not to recall, that is the question. Using provided data, pupils calculate the percent of people that may fall ill on average. The scholars determine the standard deviation based upon the mean and the empirical rule,...
CK-12 Foundation
Understand and Create Histograms: Car Sales
Create a history of car sales. Pupils create a histogram/bar graph to show the number of car sales made during the week. Using the data display, learners calculate numerical summaries of the data and find the percent of cars sold during...
Curated OER
Percent/Percentage Word Problems (Part 3)
For this Algebra I worksheet, 9th graders solve percent application problems, including percent of increase and decrease. The one page interactive worksheet contains seven problems. Answers and a hint are provided.
Curated OER
Chapter 4 - Objective 4.1 - Sale Price
In this sale price activity, students read story problems and find the sale price of given items. They determine the percent of change and figure discounts. This one-page activity contains four problems.
Curated OER
Fractions as Percentage and Decimals
In this fractions, percentages, and decimals worksheet, students solve 14 problems where they must convert back and forth. Students are given numbers in fraction, percentage, and decimal form and are asked to change their form.
Curated OER
The Global Warming Debate and the Arctic Ice Cap
In this global warming and the Arctic ice cap worksheet, students use two graphs showing data about the amount of Arctic sea ice between 1950 and 2006 and the percent of people surveyed that believe the Earth has gotten warmer over the...
Curated OER
Dried Meat
Students investigate the traditional method of drying meat used by Native Americans. They apply math concepts such as ratio, proportion, percent, and scientific notation to determine the amount of meat the is dried from an animal using...
Curated OER
Fractions to Percent
In this fraction worksheet, 6th graders change fractions to percent. Students complete 10 matching questions connecting the given fraction to its correct percentage amount.
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,...
Rainforest Alliance
Forests of Guatemala
With 90 percent of its land area covered in forests, Suriname, a country in South America, contains the largest percentage of forests throughout the world. Here is an activity that brings classmates together to learn about the...
Noyce Foundation
Toy Trains
Scholars identify and continue the numerical pattern for the number of wheels on a train. Using the established pattern and its inverse, they determine whether a number of wheels is possible. Pupils finish...
Inside Mathematics
Scatter Diagram
It is positive that how one performs on the first test relates to their performance on the second test. The three-question assessment has class members read and analyze a scatter plot of test scores. They must determine whether...
EngageNY
Describing Variability Using the Interquartile Range (IQR)
The 13th activity in a unit of 22 introduces the concept of the interquartile range (IQR). Class members learn to determine the interquartile range, interpret within the context of the data, and finish by finding the IQR using an...
EngageNY
Analyzing a Data Set
Through discussions and journaling, classmates determine methods to associate types of functions with data presented in a table. Small groups then work with examples and exercises to refine their methods and find functions that work...
University of Connecticut
Weather Vs. Whether
Monarch butterfly populations have decreased by 90 percent over the past 20 years due to misuse and ineffectiveness of some pesticides. Given the challenge to increase pesticide safety and effectiveness, the class, through discussion,...
Curated OER
Math Skills-Writing Scientific Notation
In this scientific notation instructional activity, students perform basic math functions and express their answers in scientific notation.
Curated OER
Changing Decimals and Fractions to Percents
In this fractions and decimals to percents worksheet, students review how to change decimals and fractions to percents. In the first set, students write the decimals as percents and then write the fractions as percents.
Curated OER
Math in Science-Radioactive Decay and Half-Life
In this radioactive decay and half-life worksheet, learners use given half-lifes to calculate the amount of time it will take for certain amounts of elements to decay. They also find the age of samples and determine how many grams of...
Balanced Assessment
Stock Market
Analyze trends in the stock market using histograms. Future economists use data presented in a histogram to find periods of greatest increase and decrease. They also draw conclusions about days that would be best to invest.
Curated OER
Discount and Sales Price
One of the most practical ways to teach about percentages is to use the real-life example of "sale" or "discount" pricing. This presentation poses many of these type of problems for young mathematicians who are trying to master the...
Bowland
Torbury Festival
Have you been to Torbury Fair? In the set of four lessons, learners solve a myriad of problems related to a music festival, including situations involving floods, market stalls, cows, and emergency plans.
CK-12 Foundation
Prices Involving Discounts: Save Money with Coupons!
Nine questions make up an interactive that challenges scholars to identify new prices after discounts. Question types include fill in the blank and multiple choice. A fully-functional tool assists participants in solving word problems....
CK-12 Foundation
Simple Interest
Mathematicians manipulate a mountain of money to solve six questions about simple interest. Question types include several multiple-choice and one discussion.
Bowland
Design the Mascot
Explore how resizing an object affects its area. The set of lessons challenges young mathematicians to design a mascot for electronic devices. These designs undergo resizing to determine how scale factors of dilation affect area.