K12 Reader
Kinds of Angles
Have you ever wondered how circles and angles relate to each other? Read a passage about right angles, acute angles, and obtuse angles, and answer reading comprehension questions about the information you learn.
Fluence Learning
Writing About Literature: What Is Happiness?
Jack London's heart for adventure has come to define the spirit of America and its frontier. Selected passages from the foreword The Cruise of the Snark take eighth graders through London's construction and voyage of his ship before...
Teach Engineering
Energy and the Pogo Stick
Let your class bounce to examine the concept elastic potential energy. Individuals bounce on a pogo stick in order to calculate its elastic potential energy. Groups then compare the elastic potential energy to the gravitational...
Teach Engineering
Breaking the Mold
A little too much strain could cause a lot of stress. Groups conduct a strength test on clay. Using books as weights, pupils measure the compression of clay columns and calculate the associated strain and stress. Teams record their...
Curated OER
Water Down the Drain
Did you know that leaky faucets waste $10 million worth of water? Conservationists perform an experiment and draw best-fit lines to explore how the US Geological Society determined this value.
Sea World
Marine Animal Husbandry and Training
Step into the role of a zoo director with several activities about animal training and running a zoo. Kids calculate the amount of food each animal needs, design a habitat for penguins, decide how to breed bottlenose dolphins, and train...
Curated OER
Nonstandard Units
In this units of measurement worksheet, students learn to use nonstandard units of measurement to measure the items in each problem.
Curated OER
Heavier or Lighter
Math comes alive in this interactive lesson, which prompts students to weigh small classroom-available items (erasers, pencils, rulers) as well as more obscure items that would need to be provided (a basket, a small toy car). Students...
Curated OER
Guessing Jar
In this guessing jar activity, 1st graders write down their guess for how many marbles are in the jar, then count and record the answer, and complete 3 sentences about the numbers.
Curated OER
Estimate the Number of Cherries
In this estimating worksheet, students observe groups of five cherries and estimate the total amount. Students choose one multiple choice answer.
Curated OER
Estimating Butterflies
For this estimation worksheet, students estimate how many butterflies are in the picture and have 25 or 55 to choose from. Students estimate and eventually count 25 butterflies.
Curated OER
Estimating Practice
In this number sense worksheet, students examine the picture and estimate the number of ants in the picture.
Curated OER
Estimate Amount
In this estimating the total amount learning exercise, students observe a page of apples in groups of two and estimate whether there are twenty-five or eighty apples. Students choose one multiple choice answer.
Curated OER
Goldilocks and The Three Bears
In this retelling the story about Goldilocks and The Three Bears worksheet, students retell the story and use the pictures of the three beds to compare sizes. Students compare 3 measurements.
American Statistical Association
How Tall and How Many?
Is there a relationship between height and the number of siblings? Classmates collect data on their heights and numbers of brothers and sisters. They apply statistical methods to determine if such a relationship exists.
Statistics Education Web
Types of Average Sampling: "Household Words" to Dwell On
Show your classes how different means can represent the same data. Individuals collect household size data and calculate the mean. Pupils learn how handling of the data influences the value of the mean.
Statistics Education Web
Text Messaging is Time Consuming! What Gives?
The more you text, the less you study. Have classes test this hypothesis or another question related to text messages. Using real data, learners use technology to create a scatter plot and calculate a regression line. They create a dot...
Curated OER
High School Mathematics Problems from Alaska: AL-CAN Highway Problem
High schoolers write and solve equations converting between metric and standard measurement as they travel southeast on the Al-Can Highway.
Curated OER
My Metric System Smile
In this measurement learning exercise, students measure their smile and the smiles of people in their group using centimeters and millimeters. Students combine their data with their classmates' data to analyze and write a brief conclusion.
Curated OER
Christmas Tree Angles
In this angles worksheet, students measure angles to make triangles and cut them out to make a Christmas tree. Students draw and cut 5 triangles to make their tree.
Curated OER
Concurrent Lines, Medians and Altitudes
In this geometry worksheet, students construct angles and identify medians and altitudes. They use a compass and protractor to perform heir construction. There are 28 questions.
Curated OER
Triangle worksheets
In this geometry worksheet, 10th graders explore triangle properties, including the sum of the measures of the angles of a triangle, the triangle inequalities, properties of isosceles triangles, properties of congruent triangles, and...
Curated OER
Dot's Dot
In this math estimation worksheet, students estimate how many centimeters it is from each dot in a dot to dot puzzle. Students then use a ruler to measure exactly.
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.