EngageNY
Solving Quadratic Equations by Completing the Square
Many learners find completing the square the preferred approach to solving quadratic equations. Class members combine their skills of using square roots to solve quadratics and completing the square. The resource incorporates a variety...
West Contra Costa Unified School District
Evaluating Functions Graphically and Algebraically
High schoolers evaluate functions graphically and algebraically. After completing that step, they write a statement describing the input and output.
Pennsylvania Department of Education
Using Expressions and Equations
Sixth graders analyze expressions and equations. For this algebra lesson, 6th graders write algebraic sentences and solve for an unknown in a one-step equation. This lesson uses the formulas for the perimeter of a square and rectangle as...
Curated OER
Lively Math
Scholars realize the importance of reading and correct interpretation when engaging in mathematical problem solving. This begins with the understanding of vocabulary and the translation from numeric to algebraic and algebraic to numeric.
EngageNY
Mixture Problems
What percent of the mixture is juice? Pairs use their knowledge of proportions to determine what percent a mixture is juice given the percent of juice in the components. Pupils use the procedure learned with the juice mixture problem to...
Curated OER
Chairs Around the Table
Youngsters become flexible problem solvers with this challenging lesson. If there are 24 square tables in a restaurant, how many customers can be seated at one time? They can use manipulatives or draw pictures to help them find the...
Curated OER
Algebra/Geometry Institute Summer 2009
Students investigate linear equations through models. For this algebra lesson, students investigate solving one and two step equations. Review solving a basic equation before starting this assignment.
Curated OER
Toy Shop Numbers
Eighth graders investigate linear equations through models. In this algebra lesson, 8th graders investigate solving one and two step equations. Review solving a basic equation before starting this assignment.
Curated OER
Solving Equations with Variables on Both Sides
Ninth graders solve equations with variables on both sides of an equation. For this algebra lesson, 9th graders use more than one step to arrive at their final answer. They solve linear equations by addition, subtraction, division and...
Curated OER
Linear Inequalities
Students solve linear inequalities. For this solving linear inequalities lesson, students solve one step inequalities algebraically. Students graph the solutions on a number line. Students compare the graphs of various inequalities such...
Curated OER
Solving Equations with Addition and Subtraction
Students simplify linear equations. In this algebra lesson, students solve equations by addition and subtraction. They solve one step equations to practice isolating the variable on one side of the equation.
Curated OER
Roman Bernardo: Solving Linear Equations
Mathematicians use an inquiry method to solve linear equations. In this linear equations lesson, young scholars practice solving equations using addition, subtraction, multiplication and division. They solve multi-step equations and...
Virginia Department of Education
Cover Up Problems
Don't cover up this resource — use it out in the open! Pupils learn how to cover up various parts of a linear equation in order to help solve the equation. A worksheet of problems provides practice with this skill.
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
Part of a Whole as a Percent
Pupils use visual models, numeric methods, and equations to solve percent problems. To complete the second installment of 20, they find the part given the percent and the whole, find the percent given the part and the whole, and find the...
West Contra Costa Unified School District
Average Rate of Change
The concept of slope gets an approachable, yet theoretical, treatment in a comprehensive algebra instructional activity. The use of functional notation and problem-solving techniques keep the material rigorous, but detailed teaching...
West Contra Costa Unified School District
Particle Motion
Derivatives are useful for many things — they can even keep track of particle motion. An informative lesson plan provides an introduction to the idea of the second derivative in particle motion. Class members determine the velocity...
EngageNY
Wishful Thinking—Does Linearity Hold? (Part 2)
Trying to find a linear transformation is like finding a needle in a haystack. The second lesson in the series of 32 continues to explore the concept of linearity started in the first lesson. The class explores trigonometric, rational,...
Curated OER
Pizza Topping Combinations
Students brainstorm pizza toppings and determine the number of possible ways to order a pizza. In this algebra lesson, students analyze and investigate geometric patterns as they relate to the concept of a variable. Students then use a...
Illustrative Mathematics
How Many Solutions?
Determining the number of solutions is an important stepping stone to higher math. For this case, the resource asks algebra pupils to find a second linear equation for a certain solution of a system. When one is asked for a linear...
Curated OER
Solve and check multi-step equations and inequalities
Students participate in a lesson that is concerned with the solving of multiple step equations and inequalities. The use of algebra tiles translates the information well for the kinesthetic learners. Then the skills are used to solve the...
Curated OER
Manipulating Multi-step Equations (Grade 8)
Ninth graders solve multi-step equations. For this Algebra I lesson, watch a video on solving equations with variables on both sides of the equal sign. Students visit an Internet site to solve simple equations through the use of a...
Curated OER
Graph Dynamic Linear Equations
Students explore the concept of linear equations. In this linear equation lesson, students change parameters of an equation and notice the effect it has on its graph.
Virginia Department of Education
Inequalities
Not all resources are created equal — and your class benefits! Scholars learn how to solve one-step inequalities using inverse operations. They complete an activity matching inequalities to their solutions.