Curated OER
Properties of Equality
What assumptions are made in order to solve equations? An instructional slideshow provides an overview and guided examples of how properties of equality can be used to justify each step in solving equations.
Curated OER
Symmetry of the Addition Table
Help your class discover the commutative property of addition with this exploration of the addition table. By folding and coloring the table, a symmetry is found that directs students to an understanding of this crucial mathematical...
Curated OER
Property of Equality
Learns will name the property of equality demonstrated in each example. Problems include addition, multiplication, subtraction, and division properties of equality.
Curated OER
Hands-On Equations: Teacher Notes
Math manipulatives are wonderful for demonstrating any number of mathematical concepts in a concrete and visual way. Learners review the addition property of equality and the zero property using a scale model kit (not shown). They...
EngageNY
Solving a Linear Equation
Solving an equation is the art of creating simpler equivalent equations using properties of equality. Here, classes see that solving an equation is not always as easy as guessing. The instructional activity presents linear equations that...
PBS
History of Juneteenth and Why It’s Now a National Holiday
June 19 is now a United States federal holiday. Young historians examine the background of the first Juneteenth celebrations and why on June 15, 2021, Congress finally approved "Juneteenth National Independence Day" as a federal holiday.
EngageNY
Solving Equations Using Algebra
Use a tape diagram to emulate the steps of solving equations. The 23rd installment in a 25-part unit presents two-step linear equation problems to solve. Pupils use tape diagrams to solve the problems along with linear equations. To...
EngageNY
If–Then Moves with Integer Number Cards
Pairs with the same sum of integer cards verify the addition and subtraction properties of equality by adding and subtracting like cards to each hand. They also justify the multiplication and division properties of equality using...
Mathematics Vision Project
Equations and Inequalities
Help learners get their facts in line to build and solve complicated linear equations and inequalities. Pupils build upon their knowledge of solving basic equations and inequalities to solve more complex ones. Individuals work with...
Curated OER
Study Buddies: Working With Addition Properties
In this math worksheet, students will work with a coach to learn about and practice three addition properties: associative, commutative, and identity. Students will follow a step-by-step process and notes are provided for the coach.
C3 Teachers
Women’s Rights: How Can Women Achieve Equality in a Patriarchal Society?
Women today may not have heard of Madame C.J. Walker or Wilma Mankiller, and a few may not be aware of Emma Watson's current role; however, they have certainly benefited from their efforts. Using questions supplied by this guided...
Curated OER
Properties of Real Numbers
For this properties of real numbers worksheet, 9th graders solve and complete 30 different problems that include identifying and using various types of properties. First, they define each property by stating an example for each one...
Curated OER
Properties of Addition and Subtraction
In this using properties to solve word problems, learners find the sums and differences of two-digit numbers using the zero property and the order property of addition to problem solve. Students solve six problems.
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.
EngageNY
Solving Equations
Teach solving equations through an exploration of properties. Before pupils solve equations they manipulate them to produce equivalent equations. The activity switches the focus from finding a solution to applying properties correctly.
EngageNY
Matrix Addition Is Commutative
Explore properties of addition as they relate to matrices. Using graphical representations of vector matrices, scholars test the commutative and associative properties of addition. They determine if the properties are consistent for...
EngageNY
Unknown Angle Proofs—Writing Proofs
What do Sherlock Holmes and geometry have in common? Why, it is a matter of deductive reasoning as the class learns how to justify each step of a problem. Pupils then present a known fact to ensure that their decision is correct.
Flipped Math
Intro to Proofs
Prove the best way to keep up in Geometry. Scholars first review algebraic properties from Algebra. Learners then use the properties to create two-column proofs to solve linear equations before completing algebraic proofs by providing...
Curated OER
Examine Addition Properties
In this addition properties worksheet, students complete problems involving the commutative, associative, and identity properties. Students complete 5 problems.
Curated OER
Properties of Real Numbers
In this algebra worksheet, students identify and use the properties of real numbers to solve problems. They identify and differentiate between rational and irrational functions. There are 13 problems.
Curated OER
Solving Equations
In this solving equations activity, students solve and complete 15 different problems. First, they isolate the variable on one side of the equation using the addition/subtraction property of equality. Then, students check each solution...
Curated OER
Algebra: Expressions and Addition Properties
In this algebraic expressions and addition properties instructional activity, learners write an algebraic expression for each word phrase. Students then translate each algebraic expression into words. In this third set, learners evaluate...
EngageNY
End-of-Module Assessment Task: Grade 7 Module 2
Learners demonstrate their ability to operate with rational numbers through a five-question assessment that includes questions ranging from simple operations with integers to solving two-step equations with rational coefficients.
Flipped Math
Solve Equations
Solutions for linear equations create solution sets. Pupils watch a video on solving multi-step linear equations. They then solve equations with variables on both sides of the equal sign, combining like terms and the distributive...