Curated OER
Addition and Subtraction of Rational Expressions
In this rational expression worksheet, students add and subtract fractional expressions. They completely factor the numerator and denominator. Explanations and examples are provided at the beginning of the document. This two-page...
EngageNY
Dilations on the Coordinate Plane
Dilations from the origin have a multiplicative effect on the coordinates of a point. Pupils use the method of finding the image of a point on a ray after a dilation to find a short cut. Classmates determine the short cut of being...
National History Day
Why Did the United States Enter World War I in 1917?
World War I was the first major conflict on a global scale. Using primary documents, learners determine why the United States chose to enter World War I when it did. After analytical writing and group research, the causes of America's...
Education Development Center
Integer Combinations—Postage Stamps Problem (MS Version)
Number patterns can seem mysterious. Help your learners unravel these mysteries as they complete an intriguing task. Through examination, collaborative groups determine that they are able to produce all integers above a certain...
Curated OER
Solving Algebra
In this algebra worksheet, students define greatest common factors, least common factors and solve word problems dealing with GCF and LCM. There are 10 questions with an answer key.
Curated OER
Complex Fractions
In this complex fractions worksheet, 9th graders solve 10 different problems that include simplifying various complex fractions. First, they create one single fraction in the numerator and then in the denominator. Then, students rewrite...
Curated OER
Multiplying with Packages and Letters
Students explore multiplication. In this multiplication problem solving instructional activity, students view a video clip which demonstrates loading a truck with packages. Students fill in a blank array to represent 1"X 2" and the...
West Contra Costa Unified School District
Factoring Quadratic Expressions
Factor in different strategies in a lesson for factoring quadratics. Young mathematicians first create tables and area models to factor quadratic trinomials into two binomials by guess and check. Learners then investigate how they can...
EngageNY
The Special Role of Zero in Factoring
Use everything you know about quadratic equations to solve polynomial equations! Learners apply the Zero Product Property to factor and solve polynomial equations. They make a direct connection to methods they have used with quadratic...
Mathematics Vision Project
Structures of Expressions
This comprehensive unit investigates transformations of quadratics, having learners follow "Optima" through the development and growth of her quilting business. Deftly weaving the story into the mathematical mechanics, the unit gives...
Mathematics Vision Project
Probability
Probability, especially conditional probability, can be a slippery concept for young statisticians. Statements that seem self-evident on the surface often require a daunting amount of calculations to explicate, or turn out to be...
Star Wars in the Classroom
Star Wars Geography Unit
What kind of animals live on an ice planet like Hoth? How would the habitat on Tatooine allow different organisms to thrive? Connect social studies, science, and Star Wars in one engaging activity that focuses on the ecosystems...
Curated OER
Factoring
Ninth graders factor equations and find prime numbers. In this algebra lesson, 9th graders find the factors and prime factors of a number using multiples and relatively prime numbers.
Curated OER
What Are You - Prime or Composite
Learners explore the concept of prime factorization. In this prime factorization lesson, students participate in an activity where they find the prime factorization and greatest common factor of a number derived from their name. Learners...
Curated OER
Computation Review of Decimals and Fractions
For this computation review of decimals and fractions worksheet, 6th graders solve four columns of twelve problems of addition, subtraction, multiplication and division on six pages.
Curated OER
Mountain Math Worksheet
In this number sense worksheet, 5th graders solve 37 problems based on a given number. Students are asked to round the number, identify the number as even or odd and add 100 to the number.
Curated OER
Factoring
In this algebra worksheet, learners solve quadratic equations and factor using complete the square. There are 20 problems.
Curated OER
Math in English Skills V Exercise Book
Long division, multiple-digit multiplication, rounding, and place values are all covered in a fantastic math packet. The packet contains over 20 worksheets and puzzles, and their answer keys, that will help remedial math students in a...
Curated OER
Math in English Skills IX Exercise Book
Wouldn't it be great if you had a packet of worksheets that covered percents, adding, dividing, and comparing fractions and decimals? Click here and print a workbook with over 20 well-scaffolded pages that will help your class practice...
Curated OER
And the Number Is (Second Grade)
Second graders create Mystery Numbers. They give the class clues about the name, value, and multiples of the digits which make up the number.
Curated OER
Ecology and the Conservation of Natural Resources
Students examine the components of ecosystems. They compare and contrast an ecosystem to an aquatic ecosystem. They examine a local ecosystem and discuss its components.
Curated OER
Rational Expressions: Add and Subtract
In this rational expression worksheet, students add or subtract rational expressions by finding common denominators. There are 11 multiple choice questions.
Curated OER
World Cancer Day
In this World Cancer Day instructional activity, students complete activities such as reading a passage, phrase matching, fill in the blanks, correct words, multiple choice, spelling, sequencing, scrambled sentences, writing questions,...
Curated OER
Evidence of Evolution by Natural Selection - Testable Hypotheses
The factors that affect selection and evolution are investigated here. Information about some common ancestry examples are given but with no real scientific evidence. This presentation is very obvious in making biased claims about...