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### We found 1,258 reviewed resources for express problems and solutions

Lesson Planet

#### Equations and Expressions

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...

EngageNY

#### Mathematical Area Problems

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...

EngageNY

#### Adding and Subtracting Rational Expressions

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

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.

EngageNY

#### Multi-Step Problems—All Operations

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...

Lesson Planet

#### Write Linear Expressions and an Equation Application: Savings Plans

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...

Lesson Planet

#### Simplify Exponential Expressions - Quotient Rule (Example)

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

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...

Lesson Planet

#### How Do You Solve a Rational Equation With No Solution?

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...

Lesson Planet

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

Lesson Planet

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

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...

Lesson Planet

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

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...

Lesson Planet

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

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

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

Lesson Planet

#### Evaluating Solutions of One Step Equations and Inequalities

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...

Lesson Planet

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

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...

Lesson Planet

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

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....

Lesson Planet

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

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...

Lesson Planet

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

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

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

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

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

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

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...