Curated OER
How to Teach Students about Acid and Acid Rain
How acidic is your rainwater? Use these lesson plans to get students thinking about how acids affect the environment in which we live.
PBS
Pbs: Commutative and Associative Properties of Addition
Generate equivalent expressions using two additive properties. This video focuses on using the associative and commutative properties of addition to combine like terms, simplify expressions, and create equivalent expressions.
OER Commons
Oer Commons: Reviewing the Properties of Addition
Learners review the properties of addition and write an example for each. Then they apply the properties to simplify numerical expressions.
Learning Wave Communications
Learning Wave: Commutative and Associative Properties of Addition
A detailed example is used to demonstrate the difference between the commutative and associative properties of addition.
Other
Chili Math: The Distributive Property of Multiplication Over Addition
The distributive property of multiplication over addition allows us to eliminate the grouping symbol, usually in the form of parenthesis. Illustrates the basic pattern or formula and how to apply it.
Oswego City School District
Regents Exam Prep Center: Who's Who? Properties of Real Numbers
A great opportunity for your students to practice their knowledge of the number properties with the card game. A quick way to help students learn.
AAA Math
Aaa Math: Addition Properties
Learn the definitions and study examples of the four properties of addition. Then try the game to check your understanding of each of the properties. The game will tell you when your answers are correct. If you answer incorrectly, it...
The Math League
The Math League: Whole Numbers & Basic Properties
Here is a nice resource for students and teachers about whole numbers and their basic properties. It provides links to information on place value, expanded form, and rounding numbers are just a few of the topics on this page.
ClassFlow
Class Flow: Properties of Math
[Free Registration/Login Required] This flipchart is an introduction and application of three principle properties of mathematics. Students will identify and apply the Identity, Commutative, and Associative Properties of addition and...
Other
Ask Lois Terms: Distributive Property
So, you don't know what the distributive property is. Never fear, just ask Lois! She knows all about the "Properties." Find this definition and others in this site were kids can email questions about math and get answers. Math terms...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Distributive Property Illustrated
This is part of a math forum at Drexel University. A student gets frustrated when asked to solve a problem using the distributive property. Never fear. Dr. Math to the rescue! Illustrations and detailed examples help provide...
Teaching Treasures Publications
Teaching Treasures: Year Six Math (Page 2)
This interactive worksheet covers a wide range of math concepts such as Roman Numerals, distributive property, estimating sums, and comparing fractions and decimals. Some concepts may be slightly challenging. Learners can access the help...
Khan Academy
Khan Academy: Equivalent Expressions With Negative Numbers
Practice identifying equivalent expressions involving the addition and subtraction of negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.