Tags

    7.EE.4b


    Overarching Skill:

    Solve real-life and mathematical problems using numerical and algebraic expressions and equations.

    Standard:

    Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities (see notes): b. Solve word problems leading to inequalities of the form px + q > r or px + q < r, where p, q, and r are specific rational numbers. Graph the solution set of the inequality and interpret it in the context of the problem.

    For example: As a salesperson, you are paid $50 per week plus $3 per sale. This week you want your pay to be at least $100. Write an inequality for the number of sales you need to make, and de-scribe the solutions.

    Key Vocabulary:

    Inequalities

    Supporting Vocabulary:

    Greater than, less than, coordinate plane

    Learning Targets:

    1. Use variables to represent quantities in real-world problems

    2. Use variables to represent quantities in mathematical problems

    3. Construct simple equations to solve problems by reasoning about the quantities

    4. Construct simple inequalities to solve problems by reasoning about the quantities

    Demonstrators:

    At a farmer’s market, you buy 4 pounds of tomatoes at $3 a pound and 2 pounds of sweet potatoes at $2 a pound. You spend 80% of the money in your wallet. Write and solve an equation to find how much money is in your wallet before you pay.

    Previously Mastered Learning Targets:

    1. Solve real-world problems by graphing points in all four quadrants of the coordinate plane

    2. Solve mathematical problems by graphing points in all four quadrants of the coordinate plane

    3. Use coordinates to find distances between points with the same first coordinate or the same second coordinate.

    4. Use absolute value to find distances between points with the same first coordinate or the same second coordinate.

    Extension Learning Targets:

    1. Use numbers expressed in scientific notation to estimate quantities

    2. Express how many times as much quantities are than the other

    3. Understand functions

    4. Know the graph of a function is the set of ordered pairs consisting of an input and corresponding output

    Link to CRS:

    EXPRESSIONS, EQUATIONS AND INEQUALITIES (24-27)

    501.Solve real-world problems using first-degree equations.

    502.Write expressions, equations, or inequalities with a single variable for common pre-algebra settings.

    Notes:

    77-Expressions and Equations-4 Solve real-life and mathematical problems using numerical and algebraic expressions and equations.



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