Curated OER
System of Two Quadratic Inequalities
Students set up and solve a system of quadratic inequalities related to real-world situations.
Curated OER
Systems of Linear Inequalities in Slope-Intercept Form -- Lecture
Learners are introduced to linear inequalities in slope-intercept form. As a class, they participate when needed in a demonstration given by their teacher and practice graphing inequalities and describing the solution. They set up and...
Curated OER
Graphing Inequalities
In this graphing inequalities worksheet, 6th graders solve and complete 24 different types of problems. First, they draw a graph for each given inequality. Then, students solve for each equation.
Curated OER
Solving Inequalities
In this college level algebra worksheet, students solve absolute value and quadratic inequalities. The two page worksheet contains three problems. Answers are not provided.
Curated OER
Bar Models to Solve Word Problems
Students model inequalities as they solve for the missing variable. In this algebra lesson plan, students model their inequalities and use it to identify less than, greater than and applying it to solving for the missing value.
Curated OER
Solving Complex Equations with the GERMDAS method
Students solve complex equations with the GERMDAS method. In this algebra lesson, students solve equations with more than one step using addition, subtraction, multiplication and division. They apply the order-of operation as they...
Kenan Fellows
Solutions
Scientists require specific chemical solutions for their experiments. In the seventh and final installment in a series that integrates chemistry and algebra II, scholars learn to set up a system of equations to solve the volume of a...
Kenan Fellows
Isotopic Pennies
Many people confuse atomic mass and atomic numbers. The sixth of seven lessons in a unit requires scholars to find the weight of different groups of pennies. Then, they must solve how many of each type of penny exists in a closed system...
Utah Education Network (UEN)
Expressions and Equations
Variables may be unknown, but expressions and equations are easy to understand. Pupils learn to write, evaluate, and simplify numeric and algebraic expressions. They also investigate how to write and solve simple equations and...
Illustrative Mathematics
Regular Tessellations of the Plane
Bringing together the young artists and the young organizers in your class, this lesson takes that popular topic of tessellations and gives it algebraic roots. After covering a few basic properties and definitions, learners attack the...
Kenan Fellows
Density
Most scholars associate density with floating, but how do scientists determine the exact density of an unknown liquid? The third lesson in a seven-part series challenges scholars to find the mass and volume of two unknown liquids. Each...
New York City Department of Education
Dance and Text
Use texts and dances to teach inequalities and equations. A sixth-grade unit covers using variables in equations and inequalities to solve problems. Learners show what they know at the end of the unit using two performance tasks, one...
Illustrative Mathematics
Sum of Angles in a Polygon
How can learners use algebra to solve a geometry problem? Help learners create an equation that shows the relationship between the number of sides of a polygon and the sum of the interior angles. Students are asked to divide the...
EngageNY
End-of-Module Assessment Task: Grade 6 Math Module 4
Finish out the module with a bang. The last installment of a 36-part module is an end-of-module assessment task. Test takers set up equations to represent relationships and solve problems in an assortment of contexts.
Curated OER
Quadratic Equations and Functions
This comprehensive lesson plan reviews solving and graphing quadratic functions and functions of higher degree. Using the vertex form of a quadratic functions, one finds the vertex, minimum or maximum, and axis of symmetry. A few...
Curated OER
Make a Math Mascot
Create a math mascot by identifying irrational and rational numbers. Learners will also solve linear equations.
Curated OER
Homework: Writing Two-Step Equations
In this writing two-step equations worksheet, students translate word sentences into algebraic problems. Afterward, they use algebra to solve two-step equations containing one variable. This one-page worksheet contains two examples and...
Curated OER
Quiz: Writing Sentences as Equations
In this writing sentences worksheet, students read statements and translate them into an algebraic expression. Afterward, they solve for the unknown. This one-page worksheet contains ten problems.
Curated OER
Quiz: Variable Expressions
In this variable expression worksheet, students read word statements and translate them into an algebraic expression. Afterward, students solve the one-variable equations. This one-page worksheet contains ten problems.
Curated OER
SOL Review
For this SOL worksheet, students solve inequalities, identify equivalent fractions and graph polynomial functions. They find the geometric means and compute average rates. This eight-page worksheet contains 20 multiple-choice...
Curated OER
Number Problems
In this algebra worksheet, students solve eighteen number problems by using algebraic methods. Each of the word problem gives a riddle about finding a number increased or decreased by a certain number.
Curated OER
Inequalities and Triangles
Students prove and apply theorems of triangle inequality and hinge theorem. In this geometry lesson plan, students will discuss which triangle is bigger and why. They will use theorems, such as Exterior Angle Inequality or the...
Curated OER
Linear Inequalities - Parallelogram Problem
Learners use the Geometer's Sketchpad to illustrate possible answers to a parallelogram problem. As a class, they discuss the point-slope and linear equation forms. Individually, students solve their equations and check the results on...
Curated OER
Solving Systems by Elimination
Students review solving absolute value equations. They watch as the teacher demonstrates solving a system of linear equations by addition. Students practice working problems by multiplying to obtain opposite cooefficients, and then...