Curated OER
Stoichiometry
In this stoichiometry worksheet, students solve thirty problems using the process of stoichiometry to find moles, molecules, and masses of substances in chemical reactions. Students balance chemical equations, find limiting reagents and...
Curated OER
Finding Concentration
In this determining concentration worksheet, students are given the equations to find the concentration of a solution in grams per milliliter, to determine the concentration in parts per million, to determine percent mass and percent...
Curated OER
Counting Atoms in a Molecule
In this counting atoms in a molecule instructional activity, learners read about the molecule propanal that was discovered by the giant radio telescope in the Milky Way Galaxy. Students solve 6 problems where they find the number of...
Curated OER
Unit 5: Worksheet 4 - Proportions
In this proportion learning exercise, students use proportions to find the missing side of similar triangles, they identify the percent of a number, and graph points on a coordinate plane. Students solve real life story problems dealing...
Curated OER
Percentages (English Money and Metric Measures)
In this percentages worksheet, students solve 11 problems. Students find the percentage of a number or of a measurement. All money on the page and all measurements are English pound or metric. No examples are given.
Curated OER
Finding Percent of Change/ Increase or Decrease
Seventh graders explore the skill of finding the increase and decrease of a quantity. Calculating the increase and decrease is covered by a percent. The proporition for finding a percent is also part of the lesson.
Curated OER
A Number is X% of What Number?
In this algebra worksheet, students solve for the base of a number given the percent and its partial amount. There are 10 questions.
Curated OER
What is a Percent? (A)
In this finding percents instructional activity, students read the two numbers for each problem and then determine what percent of the second number is the first number. Students solve forty problems.
Curated OER
Spider Percentages
In this finding percentages worksheet, students will find the percent of a whole line that a spider traveled between points while walking from one end to the other.
Curated OER
Percent of Change
In this algebra worksheet, students convert between percents and decimals. They calculate sales tax, discounts and relative errors. There are 4 questions with an answer key.
Curated OER
Investigation- What Does It Cost?
Eighth graders investigate percents by comparing different discounts on the same sale item, practice graphing percents, and look at reasonable and unreasonable "percents off" a sale item.
Curated OER
Empirical Rule Practice Problems
Using the empirical rule for a normal distribution, young statisticians determine the percent of adult women with given heights and weights. They find the percentile rank of a woman of a stated height and find the area under a curve.
Curated OER
Probability
Seventh graders solve and complete 2 different problems that include a number of other possibilities. First, they draw a marble as stated for each out of a sack of marbles and determine the probability of getting that particular marble....
Curated OER
Who Wants to Carry a Million?
Learners, in groups, determine the volume of a box large enough to hold a million dollars. They calculate the dimensions of a bill and the volume of the money.
CCSS Math Activities
Sandwich Shop
Eat up the task on systems of equations. Given information on the total number of sandwiches and the total income, learners write and solve a linear system of equations to find the number of each type of sandwich sold at a shop. They...
Noyce Foundation
Cereal
Find the best protein-packed cereal. The short assessment task covers equivalent and comparing ratios within a context. Pupils determine the cereal with the highest ratio of protein. A rubric helps teachers with point allotments for...
Inside Mathematics
Archery
Put the better archer in a box. The performance task has pupils compare the performance of two archers using box-and-whisker plots. The resource includes sample responses that are useful in comparing individuals' work to others.
Inside Mathematics
Graphs (2007)
Challenge the class to utilize their knowledge of linear and quadratic functions to determine the intersection of the parent quadratic graph and linear proportional graphs. Using the pattern for the solutions, individuals develop a...
Houghton Mifflin Harcourt
Intensive Math
Three chapters worth of integer, fraction, and decimal problems to give you every type of question your learners need to be a successful mathematician. Thankfully the work has been done for you and this is a huge resource full...
Beyond Benign
PPM
The 15th lesson plan in the series of 24 helps your classes understand the ppm (part per million) unit of measure. First, scholars experiment with food coloring to determine concentrations before applying their findings to calculate...
Bowland
Bunting
How much fabric is necessary for bunting? Scholars use given dimensions of triangular bunting (hanging decorations) to determine the amount of fabric necessary to decorate a rectangular garden. The task requires pupils to consider...
Bowland
Public Transport
"Statistics is the grammar of science" -Karl Pearson. In the assessment task, learners read a claim made by a newspaper and analyze its conclusions. They need to think about the sample and the wording of the given statistics.
University of Wisconsin
Measuring Slope for Rain Gardens
The slope of the land is an important feature when considering the erosion that will occur. In this resource, which is part of a rain garden unit, learners calculate the slope of the proposed garden site. Even if you are not planning a...
Curated OER
Finding Percent Change
In this percent of change worksheet, learners determine the percent of increase and the percent of decrease. This two-page worksheet contains 24 problems. Answers are provided on the last page.