Scholastic
Study Jams! Addition & Subtraction of Decimals
So current with preteens is the topic of downloading tunes into their computers! In a relatable lesson, viewers are taught to figure out if Zoe can afford to purchase two songs if she has $3.00 left to her credit. Mia talks them through...
Biology Corner
Pipe Cleaner Babies
Ever been told you have your father's eyes? How did it happen? Young biologists get a hands-on experience in meiotic gene expression with a fun pairs-based activity. Participants use pipe cleaner chromosomes with trait beads to make...
EngageNY
Finding One Hundred Percent Given Another Percent
Class members solve problems to find the whole when given a percent. They  use double line numbers and factors of hundred to help break the 100 percent into equal segments. 
Illustrative Mathematics
Shirt Sale
Everyone loves a good deal, and your mathematician's job is to calculate the original price when given the discount. A different type of problem than the traditional "find the percent change" has your learners working backwards to...
Curated OER
Percent of Change
In this percent of change worksheet, students calculate the change in two whole numbers. They compute the percent of change and indicate if it is an increase or decrease.
101 Questions
Square Partitions
Challenge your classes while developing their problem-solving skills. A square is divided neatly into four equal triangles by its diagonals until one diagonal is moved from a vertex to the midpoint of one side. Now, scholars must devise...
PBS
Stories of Painkiller Addiction: Prescription Drug Abuse Awareness Campaign
The I-STOP law was designed to regulate the distribution and tracking of prescription drugs. After reading an article about its signing and implementation, middle and high schoolers work together to come up with their own ideas for an...
EduGAINs
Ratio and Proportion
Do these items have the same ratio? Through a learning contract, pupils master proportions by practicing proportions via word problems, graphs, and with manipulatives. An exit ticket checks for understanding at the end of the...
Curated OER
Interest Rates
Use a KWL chart and discussion to explore the concept behind loans with interest based on percentage rates. Learners examine different types of interest, the history of interest loans and calculate the costs of a loan over a ten-year...
Inside Mathematics
Number Towers
Number towers use addition or multiplication to ensure each level is equal. While this is common in factoring, it is often not used with algebraic equations. Solving these six questions relies on problem solving skills and being able to...
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.
Humanities Texas
Primary Source Worksheet: Tip O'Neill, "Epilogue: What I Believe" from Man of the House
The epilogue to former Speaker of the House Tip O'Neill's memoir provides readers with an opportunity to practice their informational text reading comprehension skills. 
Curated OER
Recent Problems: Percent
In this percent worksheet, students convert from decimals to percents.  They determine the percent of a number.  This two-page worksheet contains 24 multi-step problems.  Answers are provided ont he last page.
Curated OER
Finding the Percent of a Number in Fish Body Weight
Students use fractions to find the weight of fish. They use percentages to determine the correct amount to feed them. They organize their data into a graph and shares with the class.
Wild BC
The Greenhouse Effect: The Role of CO2
Though this is meant to be second in a two-part lesson, the two are not dependent on each other. Pupils play the roles of visible light rays, light or dark surfaces, and carbon dioxide molecules. They interact and react according to...
EngageNY
Percent
Extend percent understandings to include percents less than one and greater than 100. A great lesson has pupils build upon their knowledge of percents from sixth grade. They convert between fractions, decimals, and percents that are less...
EngageNY
End-of-Module Assessment Task: Grade 7 Mathematics Module 4
Asses the class to determine their knowledge of proportional relationships involving percents. Class members work through the nine-question assessment with a variety of percent problems. The multi-step problems involve simple interest,...
Noyce Foundation
Mixing Paints
Let's paint the town equal parts yellow and violet, or simply brown. Pupils calculate the amount of blue and red paint needed to make six quarts of brown paint. Individuals then explain how they determined the percentage of the brown...
Curated OER
Linear Equations
Eighth and ninth graders solve and graph 42 different problems that include writing various equations and graphing them on a grid. First, they create a table for each equation and graph it on a grid locating the x-and y-intercepts. Then,...
US Department of Commerce
Diversity: Differences in Communities
Using census data, the class finds the percentages of three diversity categories for four states and compare them. With the assistance of a 10 X 10 grid, pupils create visual representations of a comparison between two states on one...
Mathed Up!
Fractions of an Amount
After viewing a video on fractional amounts, young mathematicians put their new knowledge to the test. Throughout the assessment, class members find the fractional amount for prices, times, and populations. There are a few percent and...
Illustrative Mathematics
Accuracy of Carbon 14 Dating II
The scientific issue of carbon-14 dating and exponential decay gets a statistics-based treatment in this problem. The class starts with a basic investigation of carbon content, but then branches out to questions of accuracy and...
Inside Mathematics
Picking Apples
Getting the best pick of the apples depends on where to pick. The short assessment presents a situation in which class members must analyze a real-world situation to determine the cost of picking apples. The pricing structures resemble...
CK-12 Foundation
Additive and Multiplicative Rules for Probability: Red Dress? Blue Dress? Both!
The sum of the parts is greater than the whole. An interactive uses a Venn-like model to show the percentage of females from a survey that have a blue dress, a red dress, or both. The pupils determine the numbers in each category...