University of Minnesota
Do the Stroop
The Stroop test helps diagnose executive function disorders when used in conjunction with other tests. Reading color words and identifying colors seem like basic skills, but the Stroop test may show otherwise. Scholars work with a...
Bowland
The Z Factor
Young mathematicians determine the number of hours it would take judges of the "Z Factor" television talent show to watch every act. Participants make estimates and assumptions to solve the problem.
Curated OER
What's My Calculation?
Learners play a simple multiplication game in which they look at the number on each of the slides, and write down the multiplication facts that would give them that number. For example, 24 could get four different factor pairs. Fun...
Curated OER
Leaves, the Sun, and the Water Cycle
As a way to combine life and physical science, or simply as an investigation of plant transpiration, this lesson is sure to inspire! Middle schoolers capture the moisture given off by plants that are placed in different conditions. They...
DK Publishing
Addition, Multiplication, and Division
These equations are missing numbers, and scholars must process multiple operations to complete them. There are addition, multiplication, and division problems here, each missing an addend, divisor, or factor. After completing 24 of these...
CK-12 Foundation
Expression Evaluation with Different Denominators: Adding Mixed Fractions of Water
An interactive challenges mathematicians to add mixed fractions with unlike denominators. Five questions—fill-in-the-blank and multiple-choice—build from one to the next leading the way to an open discussion about denominators and...
Curated OER
Lesson 3: Acceleration and Force
A nine-page physics resource supports your lesson on acceleration. A step-by-step lesson plan walks you through the materials you need, the background information, steps for leading experimentation, and the explanation of the results....
Curated OER
Darfur: Violence and the Media
Learners read an article on Darfur prior to class, discuss the conflict in Darfur, visit a series of websites, and complete a worksheet evaluating the reporting and sources used. They view films on genocide to decide if the Darfur...
Curated OER
Thermal Expansion and Sea Level Rise
Placing a thermometer and a glass tube into a flask of cold water and sealing it, you can expose it to heat and very visually demonstrate thermal expansion to your earth science class. Follow it with a discussion about how the increasing...
Curated OER
Least Common Multiple: Post Test
In this least common multiple worksheet, students answer multiple choice questions about the least common multiple of numbers and rules on how to find it. Students complete 10 questions total.
Curated OER
Mission: Finding the LCM using Prime Factorization
In this prime factorization worksheet, students find the least common multiple of the given pair of numbers using factor trees. Students solve 10 problems.
Helping with Math
Prime Factorization with Factor Trees (2 of 2)
The publisher has tagged this resource as designed to meet CCSS.Math,Content.6.NS.4, but it really is only the first step in the process of determining least common multiples and greatest common factors. Six numbers are given for...
Curated OER
Least Common Multiple
In this least common multiples worksheet, 8th graders solve 20 different problems that include determining the least common multiple for each set of numbers. They first list the prime factors of each number given in the statement. Then,...
Curated OER
Greatest Common Factor
In this GCF worksheet, students fill in missing numbers in factor trees and write the prime factorization to find the greatest common factor. Worksheet includes links to answers and additional worksheets.
Curated OER
Greatest Common Factor #2
In this GCF worksheet, learners fill in missing number in factor trees, then determine whether numbers are prime or composite. Worksheet includes links to answers and additional worksheets.
Curated OER
Multiples Worksheet (2 of 2)
For this multiples practice worksheet, students examine eight 1 and 2-digit numbers. Students record the first 8 multiples for each of the numbers. An example is provided.
Helping with Math
Factors with Prime and Composite Numbers (2 of 2)
Ten two-digit numbers are listed for fourth graders to factor. Once they have factored each, they circle whether the original number is prime or composite. If you click on the "Print Worksheet" button, the printable spreads the problems...
Curated OER
Quadratic Equations and Functions
Students factor and solve quadratic equations. In this algebra instructional activity, students identify the domain and range of the quadratic function. They graph the parabola and identify the vertex.
Curated OER
Risk Factor Roulette
Students examine "multiple chemical sensitivity" and how it relates to genetic variation and environmental factors. They read an article, conduct research, and identify risk factors related to chemical sensitivity, asthma, breast cancer,...
Curated OER
Adding and Subtracting Rational Expressions
In this algebra worksheet, learners add and subtract rational expressions using the LCM. They combine like denominators before they add and subtract the expressions. There are 8 questions.
Curated OER
Factoring the Difference of Two Perfect Squares
In this Algebra I/Algebra II worksheet, students factor the difference of two perfect squares.  The one page worksheet contains five multiple choice questions.  Answers are included. 
EduGAINs
Go Eco! Ecosystems
How is a movie theater like a desert biome? Compare systems to ecosystems with a set of activities that focuses on accessing multiple intelligences and building upon knowledge. As learners discuss the ways elements of an ecosystem depend...
Education Development Center
Factoring a Degree Six Polynomial
Within collaborative groups, scholars factor a degree six polynomial. They can factor the polynomial using many different strategies — a great way to prompt mathematical discussion.
101 Questions
Shipping Routes
The product of the hard work is learning. Scholars use a simulation tool to collect information to analyze. They must decide when two ships traveling back and forth across a river at different rates will meet on the same side. The intent...