EngageNY
Writing Products as Sums and Sums as Products
Create rectangle and area models to help students understand expressions. The third installment in the 28-part series has pupils first represent expressions using rectangular array models. The exercises help scholars understand the...
Mathed Up!
Expand and Factorise
Expand and contract algebra. Using a video from a larger review series, pupils refresh their skills to factor algebraic expressions. They also use the distributive property to expand expressions on the learning exercise. Problems range...
Utah Education Network (UEN)
Fluency
Become fluent in the language of mathematics. Scholars learn to divide multi-digit whole numbers as well as see how to determine the greatest common factor and least common multiple. They also investigate how to apply the distributive...
K20 LEARN
Break It Apart: Multiplication Strategies
Reinforce multiplication strategies with a lesson plan that examines a word problem and the distributive property. Mathematicians work collaboratively to solve the problem, create a poster with their solution, and share their preferred...
Virginia Department of Education
Normal Distributions
Pupils work to find probabilities by using areas under the normal curve. Groups work to calculate z-scores and solve real-world problems using the empirical rule or tables.
West Contra Costa Unified School District
Simplify Expressions and Solve Equations Using Two-Column Proofs
Increase understanding of the algebraic properties and their importance. Scholars justify their steps as they simplify expressions and solve equations. They formalize their work as two-column proof.
Curated OER
Multiplication: Bugs Can Multiply, So Can I!
Develop multiplication skills with your class. Youngsters will visualize multiplication as repeated addition. Then they will create a multiplication bug book and discover arrays as a strategy for multiplication problem solving....
Statistics Education Web
Using Dice to Introduce Sampling Distributions
Investigate the meaning of a sample proportion using this hands-on activity. Scholars collect data and realize that the larger the sample size the more closely the data resembles a normal distribution. They compare the sample proportion...
Curated OER
Easy Worksheet: Properties 3
In this properties learning exercise, students solve 30 short answer problems. Students identify the math property illustrated by the given example. Students write the correct property such as commutative or associative for each...
Curated OER
Properties of Real Numbers
In this properties of real numbers learning exercise students solve and complete 7 different multiple choice problems. First, they determine the property that is best represented in each of the examples. Then, students determine the...
Curated OER
Using Basic Properties to Solve Problems in Math
Learners identify and define the rules of properties of real numbers. They rewrite each of the problems listed using the commutative or associative properties. Pupils apply problem solving strategies to clarify situations in a table...
Curated OER
Arithmetic Commutative Property of Addition 1 Worksheet
Skills and drill practice may not thrill your class but as they say, practice makes perfect. They solve 16 single digit addition problems that require them to use the commutative property. Additional worksheet are available through this...
Curated OER
Arithmetic Identity Property of Addition
For this identity property of addition worksheet, learners complete a total of 10 simple, 1-digit problems. Page has multiple links to additional resources.
Curated OER
Arithmetic Identity Property of Addition
In this identity property of addition worksheet, students complete a set of 16 simple 1-digit problems. Page has multiple links to additional resources.
Curated OER
Associative Property of Addition Worksheet
Here is a set of 16 problems in which the associative property of addition must be employed to solve. Tip: Provide concrete objects or manipulatives to aid struggling learners in understanding the concept.
Curated OER
Review of Pre-Algebra
Middle and high schoolers review topics covered Pre-Algebra. They solve problems questions dealing with exponents, square roots and absolute value. They use the rules of divisibility and identify prime numbers. This two-page on-line...
Curated OER
Multiplying Polynomials
For this polynomials worksheet, students solve and complete 20 different problems that include multiplication. First, they multiply the first terms of each binomial. Then, students multiply the outside terms and then the inside terms....
Curated OER
Multiplying Special Case Polynomials
In this algebra worksheet, learners practice finding the product of two binomials. In each case either the answer represents a difference of squares or a perfect square trinomial. There are 26 problems with an answer key.
Illustrative Mathematics
The Sign of Solutions
Positive or negative, zero or no solution, are all possibilities for the solution of a linear equation. Here the resource gives examples of linear equations in one variable and their type of solutions. The resource comes with commentary...
Corbett Maths
Adding Algebraic Fractions
The process requires the combination of several concepts. A video shows how individuals need several concepts to add rational expressions. Pupils must remember they need to find common denominators, combine like terms, and use the...
Curated OER
Chemical Formulas for Molecules
Newcomers to chemistry compare hydrogen peroxide to water, realizing that the difference of one oxygen atom significantly affects the chemical properties. Other pairs of compounds and their formulas are also examined. A few chemical...
American Chemical Society
Curious Crystals
Crystals are more than meets the eye! Can learners tell them apart simply by observation? As they examine five samples with a magnifier, they find that appearance alone is not enough. This serves as an introduction to a mini unit on...
Curated OER
2009 U.S. National Chemistry Olympiad National Exam - Part I
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to...
Curated OER
2009 U. S. National Chemistry Olympiad - Local Section Exam
Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...