Learners estimate and measure triangles. In this geometry instructional activity, students identify the relationship between three sides and a triangle. They use the inequality theorem to decide if a triangle will be formed or not.

Students examine the concept of inequality. They compare and contrast vertical and horizontal inequality and identify methods on how inequality is measured. They research trends of inequality in the United Kingdom.

Not all triangles are created equal. A simple hands-on activity has learners investigate the side lengths of triangles. They use pipe cleaners to determine whether triangles of given side lengths can exist and then use the results to...

Students use the inequality theorem to solve triangles and their properties. For this geometry lesson, students are given spaghetti of different lengths and asked to create triangles. They conclude the necessary length needed to make a...

High schoolers investigate the relationship between angle measures and sides of a triangle and the relationships among the three sides of a triangle. The use of technology (Cabri, Jr.) allows learners to make and test conjectures as they...

The church that just can't stay put! A video presentation raises questions of just how far the church will move. Presented with the rate of movement and a range of time expected, scholars build an inequality to answer the question.

Explore linear programming on a website game. Partners solve a real-world problem by setting up an objective function and a linear inequality. They graph their results on chart paper and also using a calculator before presenting their...

Students solve problems within-inequalities. For this algebra lesson, students apply concepts of addition, subtraction, multiplication and division to solve inequalities.

Teach solving absolute value inequalities through inquiry. Groups use their knowledge of absolute value and solving inequalities to find a solution set to an absolute value inequality. Working collaboratively encourages discussion,...

Often inequalities exist in many real-world contexts but young math learners struggle with understanding how to represent that relationship in a simple equation using an inequality. This activity focuses on the basic concepts by using...

English and math have more in common than you think. Make a connection between a compound sentence and a compound inequality with an activity that teaches learners the difference between an "and" and "or" inequality through solutions...

When is the last time you assigned your students only one problem? This seemly simple problem requires learners think like a mathematician and reason about how to solve this compound inequality in one variable. More than just using...

Young scholars solve multi-step equations and apply the process of elimination. In this algebra lesson plan, students solve linear inequalities and equations using linear combination and evaluation. They graph their results on a...

Redlining—or the practice of racial discrimination in housing loans—directly led to today's segregated living patterns in America. Using data from the federal Home Owners' Loan Corporation, classmates visualize the impact of policy on...

Students identify different viewpoints in society. They describe the characteristics of some of the individuals involved in the march from Selma to Montgomery, Alabama. They listen to a historical narrative and identify issues of...

What is progress? Who bears its cost? High schoolers consider the questions as they review data on families displaced by urban renewal projects in the 1950s and 1960s. An interactive, curated data project asks historians to consider the...

Pupils identify properties of triangles. In this geometry lesson, students create triangles using three different segments. They make conjectures and predictions.

Play a game of capture the points. Young scholars receive a number line with specific points graphed and must write an inequality that captures all the points. The second task of the algebra project is to write an inequality with...

Students survey the impact of racial, cultural, and/or socio-economic intolerance in their own lives in relation to other individuals. They develop written and oral proposals to solve inequality and intolerance on a local, state,...

Fifth graders explore equality and inequality by participating in a Tilt/Balance activity. The students listen to the story "Lemonade for Sale" by Stuart J. Murphy and use equations to graph lemonade sale profits.

Demonstrate the meaning of an absolute inequality using three different methods. Here, scholars explore absolute value inequalities through graphing, number line distance, and compound inequalities. Pupils complete various activities to...

Guide your class through the intricacies of solving compound inequalities with a resource that compares solutions of an equation, less than inequality, and greater than inequality. Once pupils understand the differences, the...

How do you build a polygon from an inequality? An engaging lesson challenges pupils to do just that. Building from the previous lesson in this series, learners write systems of inequalities to model rectangles, triangles, and even...

Young scholars solve equations and graph it. In this algebra lesson, students solve inequalities and rewrite them in the slope intercept form. They graph the boundary lines first either as dashed or solid and shade the correct side of...