+
Worksheet
Curated OER

Number Theory and The Real Numbers

For Students 9th
For this algebra worksheet, 9th graders define rational and irrational numbers and answer questions about properties of real numbers. There are 38 questions on this test.
+
Unit Plan
2
2
EngageNY

Polynomial, Rational, and Radical Relationships

For Teachers 9th - 12th Standards
This assessment pair goes way beyond simple graphing, factoring and solving polynomial equations, really forcing learners to investigate the math ideas behind the calculations. Short and to-the-point questions build on one another,...
+
Activity
Curated OER

Math Games for Skills and Concepts

For Teachers 2nd - 5th
A 27-page packet full of math games and activities builds on algebra, measurement, geometry, fractional, and graphing skills. Young mathematicians participate in math games collaboratively, promoting teamwork and skills practice.
+
Worksheet
Curated OER

Prime Problem

For Students 9th - 11th
In this algebra worksheet, learners solve a word problem where they fill a grid with numbers from 0-9. This problem is a variation of sodoku. There is an answer key.
+
Lesson Plan
Curated OER

A Prime Investigation wtih 7, 11, and 13

For Teachers 9th
Ninth graders investigate divisibility rules.  In this middle school mathematics/Algebra I lesson, 9th graders explore the divisibility rules of 7, 11, and 13.  Students examine certain six-digit numbers that are divisible by 7, 11, and 13.
+
Lesson Plan
Curated OER

Factoring

For Teachers 9th
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.
+
Lesson Plan
EngageNY

Mental Math

For Students 10th - 12th Standards
Faster than a speedy calculator! Show your classes how to use polynomial identities to multiply numbers quickly using mental math. 
+
Activity
Education Development Center

Integer Combinations—Postage Stamps Problem (MS Version)

For Students 4th - 7th Standards
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 value by...
+
Lesson Plan
Curated OER

Applying Prime Factorization

For Teachers 6th
Sixth graders use the prime factorization of numbers to find the greatest common factor and least common multiple. Working in small groups, they solve problems using the greatest common factor and least common multiple.
+
Lesson Plan
Curated OER

Mathematics Within: Algebraic Processes and Its Connections to Geometry

For Teachers 5th
Fifth graders discover the connections between algebra and geometry. With a focus on arrays and factors, they are introduced to multiplication. They develop an array for multiples of 2 through 10 and identify the factors of each row....
+
Lesson Plan
West Contra Costa Unified School District

Simplifying Radicals – Day 1

For Teachers 8th - 10th
It doesn't get simpler than this. Scholars first learn to simplify radicals by determining the prime factors of the radicand. The lesson plan progresses to simplifying radicals involving algebraic expressions in the radicand.
+
Activity
Education Development Center

Integer Combinations—Postage Stamps Problem (HS Version)

For Students 8th - 9th Standards
It seems the post office has run out of stamps! Learners build all the values of postage available if the post office only sells five- and seven-cent stamps. The task provides an opportunity to create an expression in two variables and...
+
Printables
Virginia Department of Education

Mathematics Vocabulary Cards - Grade 5

For Teachers 5th
Elevate your fifth graders' understanding of math concepts with a series of vocabulary posters. Featuring terms concerning probability and statistics, measurement, algebra, and decimal place value (and many more), the posters are sure to...
+
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.
+
Lesson Plan
Curated OER

Quickies

For Teachers 6th - 8th
For this math problem solving worksheet, students answer 5 problems in 10 minutes. The problems include a variety of questions that could be solved by students who have had geometry and algebra.
+
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...
+
Lesson Plan
Curated OER

The Commutative Cookie

For Teachers 3rd
Third graders investigate the commutative properties of multiplication and focus upon the setting of cubes in the correct patterns to solve problems. They differentiate between numbers that have multiple factors and prime numbers....
+
Lesson Plan
Curated OER

Super Factors

For Teachers 5th - 8th
Learners complete activity pages. In this factors lesson, students practice finding the factors of numbers. They discuss prime factors and prime factorization and learn how to complete a factor tree.
+
Lesson Plan
PBS

Add, Subtract and Multiply Fractions

For Teachers 4th - 6th Standards
Your future chefs will appreciate this comprehensive lesson where learners practice operations on fractions using pizza and soup analogies. Learners begin with a pizza analogy that requires the learners to multiply a whole number by a...
+
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

The Difference of Two Squares

For Teachers 8th - 10th
Young scholars practice the use of number properties through exploring the difference of two squares, creating an array model for multiplication, and work with decimal numbers. In groups, students explore patterns in an array and...
+
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...
+
Lesson Plan
Curated OER

Writing Variable Expressions for Physical Models

For Teachers 6th - 8th
Explore the concept of writing variable expressions by examining the similarities between expressions with numbers and expressions with variables. Emerging mathematicians determine rules for sequences and patterns before writing a rule...
+
Lesson Plan
Curated OER

Pascal's Triangle

For Teachers 7th - 11th
Students explore the concept of Pascal's Triangle. In this Pascal's Triangle lesson, students use an applet called 'Coloring Multiples' to explore Pascal's Triangle. Students develop patterns starting with various numbers in Pascal's...