Lesson Plan
Curated OER

Greatest Common Factor: Using the Factor Tree

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

More Factors and Multiples: Greatest Common Factor: Pre Test

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

Finding the Least Common Multiple

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

An Introduction to Public Key Cryptography

For Teachers 8th - 10th
Students secure information online using cryptography. For 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.
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.
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.
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.
Worksheet
Curated OER

Greatest Common Factor #2

For Students 4th - 5th
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.
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.
Worksheet
Curated OER

Multiples

For Students 6th - 8th
In this multiples learning exercise, learners complete multiple choice questions about multiples of a number and common factors of numbers. Students complete 10 questions.
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.
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 lesson, students read background information on the cannon and its firing. Students read about and role play positions near...
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....
Lesson Plan
Curated OER

Exponential and Logarithmic Equations

For Teachers 11th
In this algebra worksheet, 11th graders solve exponential and logarithmic functions using properties of exponents and logs. There are 56 questions with an answer key.
Lesson Plan
Curated OER

Range, Cluster, Gap and Outliers

For Teachers 6th - 9th
There are a number of activities here where learners collect and record data, as well as, activities where the likelihood of an event happening is calculated given the experimental probability. Young statisticians organize information...
Worksheet
PBS

Working with Common Denominators: Activities and Supplemental Materials

For Students 4th - 6th Standards
Enjoy these straightforward and simple worksheet pages that practice with different denominators. The practice starts simple with adding fractions together and then works on a recipe that needs to be tripled. 
Lesson Plan
Beacon Learning Center

Ten Pins

For Teachers 3rd - 5th Standards
Multiplying with multiples of 10, 100, and 1,000 provides an opportunity to discuss patterns that arise with zeros. The class uses these patterns to solve problems. Then they rotate through three work stations, including a computer-based...
Lesson Plan
Curated OER

Discovering New Units

For Teachers 4th - 6th
Students use Cuisenaire rods to explore common denominators. In this fractions lesson, students build Cuisenaire representations of fractions, then find their equivalent counterparts to find the common denominator.
Lesson Plan
Illustrative Mathematics

An Integer Identity

For Teachers 8th - 12th Standards
Challenge algebra learners to use the difference of cubes to solve this problem. Once your charges have taken out the factor (a - b), combined the like terms and set them equal to zero, the problem becomes a factorable quadratic...
Lesson Plan
Curated OER

Investigation - Design Your Own Spinner

For Teachers 7th
Seventh graders use ideas of uncertainty to illustrate that mathematics involves more than exactness when dealing with every day situations. The main standard of this lesson is statistics and probability.
Lesson Plan
Curated OER

Euclidean Algorithm

For Teachers 9th - 12th
Young scholars are introduced to the concept of a Greatest Common Divisor. They review the number systems. Students are told how the entire field of Number Theory primarily uses the integers. They are told the Fundamental Theorem of...
Worksheet
Curated OER

Equivalent Fractions and Simplest Form reteach 9.6

For Students 4th - 6th
In this equivalent fractions and simplest form worksheet, students review the processes and find the simplest form of the equivalent fractions. Students solve twelve problems.
Lesson Plan
Curated OER

Mathematical Properties for Addition

For Teachers 5th - 6th
In this math worksheet, students read about and learn the properties of addition. Students study the commutative, associative, identity and inverse properties. There are no problems on this page for students to solve.