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Lesson Plan
Curated OER

Introductory Algebra Chapter R Review

For Teachers 6th - 8th
In this math worksheet, students solve the problems and simplify the fractions. Each of the sets is related to the instructional objectives.
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Worksheet
Curated OER

Number Theory: The Sieve of Eratosthenes

For Students 4th - 6th
In this number theory activity, students read about The Sieve of Eratosthenes and follow a set of directions to complete a prime number activity and answer 4 related questions.
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Worksheet
Curated OER

Inequalities 1

For Students 6th - 8th
For this math equation inequalities worksheet, students answer twenty-five questions regarding inequality equations and diagrams. Students are given definitions of the four inequality symbols and determine if they are used correctly in...
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Lesson Plan
Curated OER

Doubling Up

For Teachers 5th
Fifth graders explore the powers of two and substitute values into their own names by solving a math word problem. They perform calculations with powers of numbers, find square roots, and explain the relation between a square root and a...
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Worksheet
Curated OER

Decimal Clues

For Students 5th
In this decimal clues worksheet, 5th graders use the clues to find the decimal for seven word problems using place value, addition and subtraction.
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Lesson Plan
Curated OER

The Language of Mathematics

For Teachers 4th - 6th
Learners integrate the language, concepts and skills of math into the daily routine and classroom environment. They think mathematically by participating in short, daily, individual, small group, whole group and transitional activities...
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Lesson Plan
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Willow Tree

Factoring Polynomials

For Students 8th - 11th Standards
Young mathematicians discover trees organize more than just families — they help factor, too. The lesson begins with factor trees and develops slowly to factoring by grouping and special patterns. 
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Lesson Plan
Curated OER

Factoring Large Numbers

For Teachers 7th
Seventh graders practice applying the rules of divisibility.
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Lesson Plan
Curated OER

10-4 Practice: Factoring Differences of Squares

For Teachers 8th - 10th
In this practice worksheet, students factor the differences of squares and identify prime expressions. Polynomials contain one or more variables, with exponents. Students complete 42 problems. An answer key is provided.
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Worksheet
Curated OER

Mental Arithmetic

For Students 5th - 6th
In this math instructional activity, students are read a series of questions. They answer them mentally. The questions and answers are on the instructional activity.
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Lesson Plan
Curated OER

Greatest Common Factor: Using the Factor Tree

For Teachers 9th - 10th
Young scholars find the greatest common factor of two numbers. In this algebra instructional activity, students use prime factorization to find their factor to simplify equations. they create a factor tree to find the factors of...
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Interactive
Curated OER

More Factors and Multiples: Greatest Common Factor: Pre Test

For Students 5th - 8th
In this greatest common factor learning exercise, students answer multiple choice questions about problem solving and rules of the greatest common factor in numbers. Students complete 10 questions total.
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Worksheet
Curated OER

Finding the Least Common Multiple

For Students 6th
In this finding the least common multiple worksheet, 6th graders use two methods, a list of multiples or prime factorization, to find least common multiples.
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Interactive
Curated OER

Least Common Multiple: Post Test

For Students 4th - 8th
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.
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Lesson Plan
Curated OER

Searching The Word

For Teachers 5th
Fifth graders review EOG math terms and definitions found in their math notebooks, and pick between 15 and 20 words to put in a word search.
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Lesson Plan
Curated OER

An Introduction to Public Key Cryptography

For Teachers 8th - 10th
Students secure information online using cryptography. In this algebra lesson, students use RSA technology to encrypt information on the internet. They use modular reduction of natural numbers to understand prime number theory.
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Lesson Plan
Curated OER

And the Number Is (Second Grade)

For Teachers 2nd
Second graders create Mystery Numbers. They give the class clues about the name, value, and multiples of the digits which make up the number.
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Worksheet
Curated OER

Greatest Common Factor

For Students 4th - 5th
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.
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Worksheet
Curated OER

Greatest Common Factor #2

For Students 4th - 5th
For this GCF worksheet, students fill in missing number in factor trees, then determine whether numbers are prime or composite. Worksheet includes links to answers and additional worksheets.
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Worksheet
Curated OER

Number Theory and Fractions Vocabulary Crossword

For Students 5th - 6th
In this math crossword, students use a set of clues and 15 words about number theory and fractions to complete a crossword puzzle. A reference web site is given for additional activities.
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Worksheet
Curated OER

Multiples

For Students 6th - 8th
In this multiples instructional activity, students complete multiple choice questions about multiples of a number and common factors of numbers. Students complete 10 questions.
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Worksheet
Curated OER

Multiplication As An Array

For Students 3rd - 7th
In this multiplication as an array worksheet, students, after being shown two prime examples, fill in the missing parts, ten blanks, of two equations that illustrate multiplication as an array.
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Lesson Plan
Curated OER

Load! Ready! Fire!

For Teachers 4th - 6th
Students will identify the parts of a cannon and practice demonstrating a mock firing. In this math and science instructional activity, students read background information on the cannon and its firing. Students read about and role play...
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Lesson Plan
Curated OER

Paper Pool

For Teachers 5th - 8th
Students analyze the measurements of rectangles. In this analysis lesson, students will investigate patterns by looking at ratios. Students will also hypothesize the probability of a ball going into a certain pocket when playing pool....