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1,258 reviewed resources for express problems and solutions

Lesson Planet

Equations and Expressions

For Teachers 5th - 6th Standards
Learners demonstrate their knowledge pictorially, concretely, and abstractly in this unit meant to last three hours over three days. Using hands-on activities, manipulatives,  real-world applications, and problem solving, learners write...
1 In 1 Collection
EngageNY

Mathematical Area Problems

For Students 7th Standards
Teach the connection between area models and the distributive property through problem solving. The 22nd lesson in a series of 29 explains the distributive property graphically. Learners build area models from word problems and then...
3 In 3 Collections
EngageNY

Adding and Subtracting Rational Expressions

For Students 10th - 12th Standards
There's a fine line between a numerator and a denominator! Learners find common denominators in order to add and subtract rational expressions. Examples include addition, subtraction, and complex fractions.
Lesson Planet

Solution Concentrations

For Teachers 9th - 12th Standards
What happens when you combine 6.022 times 10 to the 23 piles of dirt into one? You make a mountain out of a mole hill. Scholars use dehydration to obtain percent composition and then calculate the molarity of the original solution. 
1 In 1 Collection
EngageNY

Multi-Step Problems—All Operations

For Teachers 6th Standards
Harness the power of algebra to solve problems. Young mathematicians learn to work out multi-step problems by applying algebraic techniques, such as solving equations and proportions. They use tape diagrams to model the problem to finish...
5:00
Lesson Planet

Write Linear Expressions and an Equation Application: Savings Plans

For Students 8th - 11th Standards
Turn expressions into equations with a statement of equality. Individuals view the step-by-step process of writing two expressions and then setting them equal to find a value that makes them equal. The equation has variables on both...
4:09
Lesson Planet

Simplify Exponential Expressions - Quotient Rule (Example)

For Students 8th - 11th Standards
Divide and conquer the quotient rule for exponents. A short video shows how to simplify exponential expressions using the quotient rule. The narrator works through several examples on the topic.
Lesson Planet

Creating Equations/Inequalities that Model and Solve Problems

For Teachers 8th - 10th Standards
Teach your class that math really can help solve real-world problems. A variety of activities shows learners that they can apply the concept of writing equations and inequalities in everyday life. The lesson begins with a game of...
8:19
Lesson Planet

How Do You Solve a Rational Equation With No Solution?

For Teachers 8th - 10th
You've got some algebraic fractions in an equation and their denominators are all different. Well, first you need to strategize. Then find the excluded values that make your denominator equal zero because we know the denominator cannot...
8:35
Lesson Planet

How Do You Solve a Rational Equation With an Extraneous Solution?

For Teachers 8th - 10th
You've got some algebraic fractions in an equation and their denominators are all different. Well, first you need to strategize. Then find the excluded values that make your denominator equal zero because we know the denominator cannot...
2:19
Lesson Planet

How Do You Convert a Mixed Expression To a Rational Expression?

For Teachers 8th - 10th
Given a monomial and a polynomial, rewrite the expression as a rational number. This is not as confusing as you might think. First is to make the monomial a rational number by giving it a denominator. Once that is done, numbers can be...
4:05
Lesson Planet

Evaluate an Expression in the Form (a-b)/(cd) (Example)

For Students 6th - 9th Standards
There's no substitute for learning through examples. A brief YouTube video shows how to evaluate an algebraic expression through substitution. The expression of interest is in the form (a-b)/(cd), where the values of the variables are...
1:51
Lesson Planet

How Do You Use the Solution from an Equation to Evaluate an Expression?

For Teachers 6th - 12th
A quick demonstration of how to solve an equation and use that solution to determine another value, this tutorial video could be used in class or at home. The demo acts as a model for solving this type of problem. Have your pupils keep...
1:15
Lesson Planet

How Do You Use the Solution from an Equation to Evaluate an Expression?

For Teachers 6th - 9th
A quick demonstration of how to solve an equation and use that solution to determine another value, this tutorial video could be used in class or at home. The demo acts as a model for solving this type of problem. Have your pupils keep...
Lesson Planet

Evaluating Solutions of One Step Equations and Inequalities

For Teachers 5th - 7th Standards
Review the differences among equations, expressions, and inequalities. Demonstrate with a scale how an equation balances out on both sides, and how an inequality has a set of solutions. Present a few real-world problems for your...
5:59
Lesson Planet

How Do You Solve and Graph Inequalities from a Word Problem?

For Teachers 6th - 12th
Are you befuddled after reading this word problem? Not only is it a word problem but there are two variables, and not only does it have two variables, but it is an inequality. Don't pull your hair out! Take a deep breath and watch this...
4:27
Lesson Planet

How Do You Solve a Word Problem Using an Equation Where You're Multiplying Fractions?

For Teachers 8th - 10th
How tall is tall? Well, here's a word problem that when the solution is found will show how tall, tall is. Two years ago, Brad was five and a half feet tall, which was only 2/3 of how tall he is now. Oh my, he is going to be really tall....
0:07
Lesson Planet

How Do You Solve a Word Problem Using the Elimination by Subtraction Method?

For Teachers 6th - 12th
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
3:47
Lesson Planet

How Do You Solve a Word Problem Using the Direct Variation Formula?

For Teachers 6th - 12th
Have your class figure out how much "Teddy" weighs on the moon and how to translate words into algebra! This video shows pupils how to take a word problem, and then solve it using the direct variation formula and given information. Great...
Lesson Planet

Creating Linear Inequalities in One Variable

For Teachers 9th - 10th Standards
Just when a young mathematician starts to feel comfortable turning word problems into linear equations, shake things up and throw inequalities in the mix. This excellent, instructive presentation takes the steps for solving an equality...
Lesson Planet

Simplifying Numerical Expressions

For Teachers 5th
The order of operations is the order of the day in a lesson that encourages learners to use what they know in order to determine the rules for the order of operations. Beginning with simple expressions based on real-world scenarios, the...
Lesson Planet

Simplifying Numerical Expressions

For Teachers 4th - 6th Standards
Simplify numerical expressions using the order of operations. Well-scripted and detailed, the lesson leads learners to a deeper understanding of the steps necessary to rewrite expressions in simpler terms. Answer sheets and worksheets...
Lesson Planet

Math Story Problems

For Teachers 3rd
Help your class gain strategies for solving math story problems. Through teacher modeling, they practice the steps for successfully solving word problems. Then they independently practice the skills modeled by solving several math story...
Lesson Planet

A Rational Representation

For Teachers 9th - 12th Standards
Let's be rational about the solutions. A lesson plan presents rational equations to solve and leads to the understanding of extraneous solutions. Pupils begin the lesson plan by reviewing simplifying rational expression. Presented with a...