Curated OER
Percentages in Word Problems
Eighth graders, after brainstorming all the places they see percentages in every day life (sales, basketball, grades, etc.), calculate percentages from bases and parts in word problems. They review their notes together on percentage...
Global Oneness Project
Living with Less Water
Did you know that California produces two thirds of the fruits and nuts consumed in the United States? That it produces almost one third of the vegetables? Did you know that scientists warn that California is facing the onset of a...
Curated OER
Working with Percentages and Proportions
In this percentages and proportions instructional activity, middle schoolers are given percentages, they express them as a proportions, they create an equivalent ratio using "x" for the unknown portion and they cross multiply and divide...
Curated OER
Calculating Baseball Statistics
Students calculate baseball statistics. In this data analysis lesson plan, students use baseball statistics to calculate the batting average and slugging percentage. Students visit www.funbrain.com to play a math baseball game.
Curated OER
Fractions as Percentage and Decimals
In this fractions, percentages, and decimals worksheet, learners 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.
Mathed Up!
Reverse Percentages
Boost math skills and inspire scholars to show what they know with a six-page independent practice that focuses on proportional relationships and percents.
Mathed Up!
Fractions, Decimals, and Percentages
After watching a video on making conversions, young mathematicians solve 16 math problems that involve making conversions of fractions to decimals and percents, decimals to fractions and percents, and percents to fractions and decimals.
CCSS Math Activities
Smarter Balanced Sample Items: 8th Grade Math – Claim 4
A math model is a good model. A slide show presents 10 sample items on modeling and data analysis. Items from Smarter Balanced illustrate different ways that Claim 4 may be assessed on the 8th grade math assessment. The presentation is...
Curated OER
Calculating Total From Percents
Using this short review of finding a percentage of a number, learners can practice important skills. There are twelve questions on this worksheet.
Curated OER
Calculate Percentages
Sixth and seventh graders study the concept of finding the percent of a number. They calculate the percent of any given number. Pupils describe ways to use calculating percents in their daily life, and change percents into decimals,...
Curated OER
Lab: Percent of Composition of KClO3
Students find the percent of oxygen in potassium chlorate. In this percent composition lesson plan, students heat a solution of potassium chlorate using a catalyst, manganese dioxide, to decompose the potassium chlorate and release...
Curated OER
Gold Rush California and its Diverse Population
Students compare contemporary cultural differences with historical differences based on population percentage. In this cross-curriculum Gold Rush/math lesson plan, students analyze aspects of California's Gold Rush population and...
Curated OER
Stretching the Truth
Sixth graders visualize different percentages as parts of a whole on visual images. They observe alterations of photographs, and models of circles, squares and sets. This incredibly detailed, eight-page plan leads you through everything...
Curated OER
2006 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad lab worksheet, students are given two lab problems to design experiments. Topics include determining the mass percentage of a given compound and determining an unknown metal using quantitative and qualitative...
Curated OER
Decimal Baseball
Young mathematicians represent recorded information in decimal form. For this decimals lesson, learners play a "classroom friendly" basketball game in which pupils take 10 shots. Number of shots made out of 10 is recorded as a fraction...
Yummy Math
US Holiday Candy Sales
Candy is a big business! Calculate the amount of money consumers spent on major holidays—Easter, Halloween, Christmas, Hanukkah, and Valentine's Day—based on the total amount of candy sales from 2011 and the percentage of each holiday's...
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, then...
Mathematics Assessment Project
Yogurt
Daily production of dairy? Determine profit and production requirements for a yogurt company with unit conversions and percentages to solve problems.
Willow Tree
Weighted Averages
Mixtures, weighted percentages, and varying speeds make problem solving difficult. The resource give learners a strategy for tackling these types of problems effectively.
Willow Tree
Simple Probability
The probability of learning from this lesson is high! Learners calculate probabilities as numbers and as decimals. They see how to use a complement to find a probability and even try a simple geometric probability problem.
Curated OER
Empirical Formula: From Percentage to Formula
Starting with definitions of empirical and molecular formulas, this slide show guides pupils through the ways to calculate and produce chemical formulas as percentages and molar ratios. A number of examples are given for viewers to try...
Curated OER
Percentage Composition
In this chemical compounds learning exercise, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This learning exercise has 10 problems to solve.
Balanced Assessment
Who's Left?
If you're not right-handed, are you wrong-handed? Young statisticians calculate the percentage of left-handed people using a given data set in the assessment task. They plot data on a scatter plot and consider how the line of best fit...
Mathed Up!
Ordering Fractions, Decimals, and Percentages
Give scholars the opportunity to show what they know about ordering fractions, decimals, and percents with a five-page, eight-problem independent practice. With clear instructions and supportive advice, learners are bound for a...