## Expressions equations and inequalities unit test part 2

Search this site. Contact Ms. Learning Cultures Calendars. Unit 1: Review. Unit 2: Expressions. Unit 4: Linear Equations. Unit 5: Functions. Unit 8: Statistics. Unit 9: Number System. Exam Prep. Regents Prep. Cooperative Unison Reading. Learning Groups. NYS Exam Resources. Challenge Problems. Class Photos. Meet your Teacher. You will learn how to apply the properties of integer exponents, evaluate square roots and cube roots, use scientific notation, and perform operations with numbers expressed in scientific notation.

Learning Targets. I can apply the properties of integer exponents to generate equivalent numerical expressions.

Cooperative Unison Reading Texts. Journal Writing Template. Video Lessons. Learning Target 1. Learning Target 2. Learning Target 3. Learning Target 4. Learning Target 5. Online Assessments. Practice Problems. Learning Target 1: A or B.Students walk into class and pick up the packet for the day. They get to work quickly on the problems. Often, I create do nows that have problems that connect to the task that students will be working on that day.

For this lesson I want students to practice change expressions from word form to numerical form before we start working with algebraic expressions. To check the do now, display answers from 1 a — h. I ask students to share with their partner which number sentences result in the same answer. After a minute of sharing, I ask students to share out. I want students to share that a and b have the same answer as well as g and h.

I call on students to share their mathematical thinking. In the past I have found that many students mistakenly think that problems like and as well as 2 divided by 1 and 1 divided by 2 are equivalent. I want to address those misconceptions in the do now before moving on to algebraic expressions and equations.

I ask students to share out one thing that they wrote down on their do now that will help make today a productive math class. I find that students enjoy sharing out these goals — it is a way for them to be held accountable by their teacher and peers.

After the Do Now, I have a student read the objectives for the day. I tell students that they will be connecting their knowledge operations to algebraic expressions and equations.

I call on students to read the vocabulary words and the examples. Students have to copy each example in the appropriate column, expression or equation, and then identify coefficients, constants, and variables.

I am walking around and making sure students are on task and that they are using their notes to correctly identify the vocabulary words. We will address any questions or misunderstandings.

Here students are using MP3: Construct viable arguments and critique the reasoning of others. I tell students that in algebra they are going to be using variables to represent a situation.

Before we model situations using variables, expressions, and equations we need to be able to translate expressions and equations between word form and algebraic form.

I write example 1 and 2 in algebraic form. We go through the table and I ask students to identify which operation matches which group of expressions.

I then show students the different ways to represent those expressions parentheses, dot, fraction bar, etc. I stress that the order of the variable and the number matter for division and subtraction. I mention the do now problems where we showed that the quotient of two and one is different than the quotient of one and two.

How can write an expression to represent them? Many students struggle that these phrases are represented by n and not 12 — n, the way that the values appear in the phrase. Palmer has n dollars. Eric has 12 dollars less than her. How much money does Eric have?Part of my class routine is a do now at the beginning of every class. Students walk into class and pick up the packet for the day.

They get to work quickly on the problems. Often, I create do nows that have problems that connect to the task that students will be working on that day. For this lesson I want students to practice identifying the independent and dependent variables. I ask for volunteers to define the independent and dependent variables in their own words. We refine the definitions. I call on students to identify the variables in 1 and 2. I want students to be able to articulate that the number of miles Dan drives depends on the number of hours he drives. I want students to be able to articulate that the amount of money you spend on a data plan depends on the number of months you use the plan. The longer you use the plan, the more money you will spend on the data plan.

After the Do Now, I have a student read the objectives for the day. I tell students that they will be creating expressions and equations to model situations. These expressions and equations will be more complicated than the ones that we created previously. On page 2 we review the equation for the amount of money collected and identify the independent variables.

## CollectEdNY

I introduce the concepts of income, costs, and profit. Students share out ideas for costs. These are all things that cost money! Profit is the amount of money a business still has after paying its costs.

I have students brainstorm for a minute to create an expression for 1 on page 3. Students share out their ideas. Some students may struggle to connect 8n the amount of money collected and 75 the cost of one day of running the maze. Other students may struggle with whether the expression should be 8n — 75 or 75 — 8n. I will revisit the idea of profit being the difference between the amount of money the maze takes in and the costs of running the maze. Once we have agreed on the expression for the profit, students will work in partners to answer question 2.

I am looking to see that students are correctly using substitution. A common mistake is that a student will plug in a value for n, but forget to multiply that value by 8.Part 1 is available here.

This packet provides an introduction to algebra through expressions with numbers, expressions with variables, and the important principle of balance in an equation. Students will first solve for variables using squares and objects as symbols and will eventually use letters as variables. In the process, they will learn how to use the order of operations and the distributive property of multiplication to create and evaluate expressions.

In Part 2, students will learn to solve more complicated algebraic equations and will be introduced to systems of equations and inequalities.

### For Students

If you use these materials with your students, please give us feedback on the experience teacher surveystudent survey. The downloadable PDF version here includes corrections to previous versions. We recommend checking this page regularly to see if there have been any version updates. The packets provided practice in high-priority topic areas on the TASC by developing underlying concepts as an introduction to each topic.

Students then are given practice applying what they have learned in context. Students work through TASC-style questions followed by guidance on test-taking skills and explanation of answer choice design. Finally, an optional section on the language of the math topic is provided. We hope that this section is helpful for all students, but especially useful for lower-level students and English Language Learners. Click here for more information about other Math Packets. Matt cayuga-cc. I uploaded a new version of Part 2 today with corrections to the answer key and other various typos.

Please let us know if you have suggestions or see things that should be corrected. Add Your Comment Cancel reply.Lin and Tyler are drawing circles. Do you agree with Tyler?

## Equations and Inequalities

If they don't gain at least ten yards, the other team gets the ball. Positive numbers represent a gain and negative numbers represent a loss. He draws a tape diagram to represent the situation. Complete the magic squares so that the sum of each row, each column, and each diagonal in a grid are all equal.

Each car is traveling at a constant speed. Find the number of miles each car travels in 1 hour at the given rate. Here is a diagram and its corresponding equation. Find the solution to the equation and explain your reasoning. Find the cost for 1 pound of each item. Below is a set of data about temperatures.

The range of a set of data is the distance between the lowest and highest value in the set. What is the range of these temperatures? A school ordered 3 large boxes of board markers.

After giving 15 markers to each of 3 teachers, there were 90 markers left. The diagram represents the situation. How many markers were originally in each box? Explain where you can see the 6 in the diagram. Elena walked 20 minutes more than Lin. Jada walked twice as long as Elena.

Jada walked for 90 minutes. There is a proportional relationship between the volume of a sample of helium in liters and the mass of that sample in grams. If the mass of a sample is 5 grams, its volume is 28 liters. Show or explain how you found them. There are 88 seats in a theater. The seating in the theater is split into 4 identical sections.

Each section has 14 red seats and some blue seats. Andre wants to buy a backpack. What is the sale price of the backpack? On the first math exam, 16 students received an A grade. What percentage decrease is that?Students solve equations and inequalities with rational numbers, and encounter real-world situations that can be modeled and solved using equations and inequalities.

In Unit 4, seventh-grade students continue to build on the last two units by solving equations and inequalities with rational numbers. These tape diagrams offer a pathway to solving equations using arithmetic, which students compare to a different approach of solving equations algebraically.

Throughout the unit, students encounter word problems and real-world situations, covering the full range of rational numbers, that can be modeled and solved using equations and inequalities MP. As they work with equations and inequalities, they build on their abilities to abstract information with symbols and to interpret those symbols in context MP.

Students also practice solving equations throughout the unit, ensuring they are working towards fluency which is an expectation in 7th grade. In sixth grade, students understood solving equations and inequalities as a process of finding the values that made the equation or inequality true. In seventh grade, students reach back to recall these concepts and skills in order to solve one- and two-step equations and inequalities with rational numbers including negatives.

This assessment accompanies Unit 4 and should be given on the suggested assessment day or after completing the unit. Additional assessment tools to help you monitor student learning and identify any skill or knowledge gaps. Download Sample. The central mathematical concepts that students will come to understand in this unit. Equations and inequalities are powerful tools that can be used to model and solve real-world situations with unknown quantities.

Equations can be solved by reasoning about the arithmetic needed to uncover the value of the unknown. Equations can also be solved algebraically by using properties of operations and equality.

Inequalities have infinite solutions, which can be represented graphically on a number line. In context, these solutions are sometimes constrained by what makes sense for the situation; for example, if solving for the maximum number of people who can fit onto a boat, the solution set would be limited to positive integers. The materials, representations, and tools teachers and students will need for this unit.

Additional vocabulary tools that help reinforce and support student vocabulary development. Take unit assessment. Annotate for: Standards that each question aligns to Strategies and representations used in daily lessons Relationship to Essential Understandings of unit Lesson s that assessment points to. Annotate the target tasks for: Essential understandings Connection to assessment questions Identify key opportunitites to engage students in academic discourse. Read through our Guide to Academic Discourse and refer back to it throughout the unit.

Read the following table that includes models used throughout the unit. Tape diagram and equations Examples:. Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form whole numbers, fractions, and decimalsusing tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies.Enter expression, e.

Enter a set of expressions, e. Enter equation to solve, e. Enter equation to graph, e. Number of equations to solve: 2 3 4 5 6 7 8 9 Sample Problem Equ. Enter inequality to solve, e. Enter inequality to graph, e. Number of inequalities to solve: 2 3 4 5 6 7 8 9 Sample Problem Ineq.

Please use this form if you would like to have this math solver on your website, free of charge. My search for a tool which can support my daughter academically ended with this software.

It has all that a student need. Melinda Thompson, CO. Expression Equation Inequality Contact us. Solve Graph System. Math solver on your site. Keep up the good work Algebrator staff! David Aguilar, CA My search for a tool which can support my daughter academically ended with this software. May Sung, OK. Solving Linear Equations. Systems of Linear Equations. Solving Linear Equations Graphically.

Evaluating Expressions and Solving Equations. Factoring Quadratic Trinomials. Multiplying and Dividing Fractions. Dividing Decimals by Whole Numbers. Adding and Subtracting Radicals. Subtracting Fractions.

### Working with Expressions and Equations Part 2

Factoring Polynomials by Grouping. Slopes of Perpendicular Lines. Sum of the Roots of a Quadratic. Factoring Trinomials with Leading Coefficient 1. Simplifying Expressions with Negative Exponents.

Unit 5: Expressions, Equations, & Inequalities

Solving Quadratic Equations. Parent and Family Graphs. Collecting Like Terms. Power of a Quotient Property of Exponents. Adding and Subtracting Fractions. Solving Linear Systems of Equations by Elimination. The Quadratic Formula.

Fractions and Mixed Numbers.