Curated OER
Figuring Out Equations With Figurines
Pupils inspect solving equations with one variable. Through the use of a scale balance, they examine the importance of equality in an equation. By playing a balance game with figurines and a scale, students discover methods of solving...
Curated OER
Graphing Inequalities
Students graph linear equations and then find the person in class whose linear equation graph is perpendicular to theirs. In this graphing inequalities lesson plan, students graph their perpendicular slopes and then once their find their...
Curated OER
Triangle Wars
Learners explore geometry by participating in a class card game. In this triangle lesson, students utilize playing cards with shapes on them which they group up and discard, similar to "Old Maid." Learners complete a worksheet and answer...
Curated OER
CSI Investigation of Congruence and Similarity
Students differentiate between similarity and congruence using polygons. In this geometry lesson, students label triangles based on their properties. They find missing sides and angles using the interior sum theorem.
Curated OER
Figure This!
Second graders explore the concept of inequalities. They use the mathematical symbols =, <, > to show relationships among numbers. Students devise and use problem solving strategies to explore the situation.
Curated OER
Weighing Time
Young scholars devise a strategy to solve problems that is done in a systematic and mathematical fashion. The finding of the unknown value is the focus of the lesson. To solve linear equations proficiently is the skill of the lesson.
Curated OER
The Lady's Age
Students use a game to establish the context of solving problems in a systematic and mathematical fashion. They also solve various types of equations to find reasonable solutions.
Curated OER
The Old Chicken Run Problem
Sixth graders apply problem solving strategies to work with a real life situation in which they need to determine the area. They determine the area of chicken runs that are rectangular in shape when give a partial perimeter.
Curated OER
Systems of Linear Inequalities in Slope-Intercept Form -- Lecture
Students 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
Square Milk Bottle Crates
Learners attempt a problem that Students has the potential to have more than one solution. Hence the problem is accessible to a wide range of learners. The problem is essentially about finding patterns and this is typical of a number of...
Curated OER
Polygonal Strings
Sixth graders apply knowledge of how to calculate the area and perimeter of triangles. They determine why it is inappropriate to measure the area of land by its perimeter which is done in certain areas of New Guinea. They complete a...
Curated OER
System of Two Quadratic Inequalities
Pupils set up and solve a system of quadratic inequalities related to real-world situations.
Curated OER
Pizza Toppings 2
Students explore possible combinations of items. They devise and use problem solving strategies to explore situations mathematically. They examine using linear and quadratic patterns to solve combination problems. From a given...
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Meaning of an Absolute Value Inequality
"Dr. Math" presents an in-depth discussion of the meaning of an absolute value inequality. The discussion tries to clarify some of the mis-conceptions surrounding absolute value.
Purple Math
Purplemath: Algebra Resources
Purplemath contains about 40 different lessons on various algebra topics. The lessons are divided into five different sections: preliminary topics, beginning algebra, intermediate algebra, advanced algebra, and word problems. The lessons...
Richland Community College
Richland Community College: Algebra Lecture Notes
This site from Richland Community College provides lecture notes to a class on Algebra. It covers a wide array of topics including functions, quadratic equations, inequalities, and much more.
CK-12 Foundation
Ck 12: Algebra: Words That Describe Patterns
[Free Registration/Login may be required to access all resource tools.] Translate a verbal expression into an algebraic equation or inequality.
Wolfram Research
Wolfram Mathworld: Inequality
This site provides a brief overview of inequality. Content includes a definition and several examples using graphical images. (Absolute value graphs are used in this site.)
Khan Academy
Khan Academy: Solutions of Inequalities: Algebraic
Given a two-variable linear inequality, check whether a given pair of values is a solution of the inequality. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Other
Algebra.com: Homework Solvers
This site offers both instruction and homework help in several algebraic topics, including topics within Pre-Algebra, Algebra I, and Algebra II.
Khan Academy
Khan Academy: Two Step Inequality Word Problems
Practice solving two-step inequality word problems.
Math Planet
Math Planet: Algebra 2: Graph Inequalities
How to graph an inequality is explained through examples and a video lesson. [4:14]
CK-12 Foundation
Ck 12: Algebra: Testing Solutions for Linear Inequalities
[Free Registration/Login may be required to access all resource tools.] This lesson covers testing ordered pairs to see if they are solutions to a linear inequality in two variables.