Curated OER
Theoretical Yield and Percent Yield in Chemical Reaction
In this stoichiometry worksheet, students solve several problems using the stoichiometric method. Students find the percent, theoretical, and actual yield for all problems presented.
Curated OER
Eraser Dog: Percents
In this percents worksheet, students solve 30 different problems related to determining percents of numbers. First, they define a percent as a ratio whose second term is 100.Â
Illustrative Mathematics
Comparing Years
Who knew that the Egyptian, Julian, and Gregorian year were different lengths? Your mathematicians will! They will have to calculate the difference between the years in seconds and find the percent change. Using dimensional analysis,...
Curated OER
Relating Fractions, Decimals and Percents
Young scholars convert numbers to fractions, decimals and percents. In this conversion lesson, students convert fractions, decimals and percents to a specified form. Groups of young scholars play a conversion index card game. A...
Curated OER
Skittles Galore!
Youngsters show understanding of accurate division of whole number, decimals, fractions, and percents using manipulatives (candies). They use white boards to demonstrate their understanding of representing numbers as defined in the...
Discovery Education
Understanding Probability
Young scholars investigate probability. They will define probability as the likelihood of an event occurring. Then, they determine the probability of sitting in a particular seat on a plane. They also set up ratios of various seating...
Curated OER
Percent I
This PowerPoint introduces and defines the concept of percents. The slides contain a thorough definition of percents and examples of how we use percents in our daily lives. This PowerPoint is fantastic way to introduce a unit on percents.
Curated OER
Percents and Discounts
Students convert between decimals and percents. In this algebra lesson, students define percent as it relates to sales and tax. They calculate the percents of number using multiplication.
Curated OER
Estimation With Percents
Students examine percents. In this percents instructional activity, students will estimate percentages. Using advertisements from a newspaper, students problem solve to determine the final price of a sale item.
Curated OER
Relating Fractions, Decimals, and Percents
Fifth graders participate in a lesson that is concerned with the concept of telling the differences between a fraction, decimal, and percent. There is a good example of conversion in the lesson.
Curated OER
Percents
Students explore the concept of percents. In this percents lesson plan, students discuss the prefix cent and words that contain that prefix. Students make bead necklaces and determine the percentages of certain beads in relation to the...
Curated OER
Shots, Standings, and Shopping
Rates and ratios can easily be applied to real-world situations. Learners explore a series of websites in order to procure comparable data. They define ratios and rates, view videos, and use the internet to explore how ratios and rates...
Curated OER
Atomic Mass, Moles, and the Periodic Table
In this periodic table worksheet, students review atomic mass, molar mass, and percent composition of compounds. Then students complete 4 problems.
Curated OER
Are Our Chemical Measurements Accurate or Precise?
What is the difference between accuracy and precision? This worksheet has students define the terms accuracy and precision, and compare bulleye diagrams to find examples of both. Students analyze given data and determine the accuracy and...
Curated OER
Solving Linear Equations
Math whizzes read a series of slides describing steps to solving linear equations. They view a slide-show presentation. Each page, or slide, presents a different topic. Topics include: defining a linear equations, inverse operations,...
National Security Agency
It's Probably Probable
Learners make predictions and draw conclusions from given information as they learn the meaning of probability in this vocabulary-rich, integrated activity that presents a variety of teaching strategies to motivate and reach all learning...
Curated OER
Averages and Percentages
In this averages and percents worksheet, students identify and define average as all numbers together divided by the total number of items added. Then they identify and define percent as the given number out of a total possible. Students...
Curated OER
TAKS Math Quiz-Percent of y
In this TAKS math quiz instructional activity, students take an online quiz focused finding the percent of x that is y. Quiz can be graded online by clicking a link.
Curated OER
SAT Grid Practice Test 12
In this SAT practice test, students solve various problems dealing with percent, area of polygons, rates, functions, and distance. This one page on-line learning exercise contains ten multi-step problems.
Curated OER
What Are the Odds?
Middle schoolers identify and interpret various ways of expressing probability as a decimal, fraction, percent, or ratio. They solve problems based on probability as they apply to real world applications.
Curated OER
Vocabulary - Stoichiometry
In this stoichiometry worksheet, students write in the definition for the 6 terms associated with stoichiometry including actual yield, percent yield, and limiting reactant.
EngageNY
Ratios and Unit Rates
This turn-key unit on ratios and unit rates walks through a 30-lesson unit on teaching proportional reasoning, with each lesson broken into detailed teaching notes and time allotments for all parts. An unbelievable resource when taken...
Curated OER
Not Everything is More Expensive
Students explore percent increases and decreases. They calculate the percent increase and decrease. Students use math to solve problems and communicate. They apply the given formula for percent increase/decrease.
Curated OER
X Is What Percent Of Y?
In this percents activity, students complete 2 multiple choice questions where they find the percent of a number. Answers are given online.