Sharp Math Expressions and Equations Standard 6th 7th 8th M-EE-1 Standard Standard Standard Write and evaluate numerical Apply properties of operations Know and apply the properties expressions involving whole- as strategies to add, subtract, of integer exponents to number exponents. factor, and expand linear generate equivalent numerical expressions with rational expressions. For example, coefficients. 32 × 3–5 = 3–3 = 1/33 = 1/27. Teacher Target Teacher Target Teacher Target Student Target: Student Target Student Target I can write numerical I can combine like terms with I can explain the properties of expressions involving rational coefficients.(K) integer exponents to generate 1. whole number 2. exponents. Ex. 53 = I can factor and expand linear 5x5x5 (K) expressions with rational I can evaluate coefficients using the numerical expressions distributive property. (K) involving whole 3. number exponents. (K) I can apply properties of I can solve order of operations as strategies to add, operation problems that subtract, factor, and expand contain exponents. (K) linear expressions with equivalent numerical expression. (K) I can apply properties of integer exponents to produce equivalent numerical expressions. (K) rational coefficients.(R) M-EE-2 o Standard Demonstrator Standard Demonstrator Standard Demonstrator Standard Standard Standard Write, read, and evaluate Understand that rewriting an Use square root and cube root expressions in which letters expression in different forms symbols to represent solutions stand for numbers. in a problem context can shed Write expressions that record operations with numbers and with letters standing for numbers. For example, express light on the problem and how the quantities in it are related. For example, a + 0.05a = 1.05a means that “increase by 5%” is the same as “multiply by 1.05.” to equations of the form x2 = p and x3 = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational. the calculation “Subtract y from 5” as 5 – y. Identify parts of o an expression using mathematical terms (sum, term, product, factor, quotient, coefficient); view one or more parts of an expression as a single entity. For example, describe the expression 2 (8 + 7) as a product of two factors; view (8 + 7) as both a single entity and a sum of two terms. Evaluate o expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole-number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations). For example, use the formulas V = s3 and A = 6 s2 to find the volume and surface area of a cube with sides of length s = 1/2. Teacher Target Teacher Target Teacher Target Student Target: Student Target Student Target A. I can write equivalent I can use square root and cube 1. I can use numbers and expressions with fractions, root symbols to represent decimals, percents, and solutions. (K) variables to represent desired operations. (K) 2. I can translate written phrases into algebraic expressions.(K) 3. I can translate algebraic integers. (K) I can rewrite an expression in I can evaluate square roots of small perfect squares. (K) expressions into written an equivalent form in order to I can evaluate cube roots of phrases.(K) provide insight about how small perfect cubes. (K) B. 4. I can identify parts of an expression using mathematical quantities are related in a problem context. (R) terms. (sum, term, product, I can explain that the square root of 2 is irrational. (K) factor, quotient, coefficient) (K) 5. I can identify parts of an expression as a single entity, even if not a monomial. (K) C. 6. I can substitute specific values for variables. (K) 7. I can evaluate algebraic expressions including those that arise from real-world problems. (K) 8. I can apply order of operations when there are no parentheses for expressions that include whole number exponents. (K) M-EE-3 Standard Demonstrator Standard Demonstrator Standard Demonstrator Standard Standard Standard Apply the properties of Solve multi-step real-life and Use numbers expressed in the operations to generate equivalent mathematical problems posed form of a single digit times a with positive and negative whole-number power of 10 to rational numbers in any form estimate very large or very (whole numbers, fractions, and small quantities, and to express decimals), using tools how many times as much one expressions. For example, apply the distributive property to the expression 3 (2 + x) to produce the equivalent expression 6 + 3x; apply the distributive property to the expression 24x + 18y to produce the equivalent expression 6 (4x + 3y); apply properties of operations to y + y + y to produce the equivalent expression 3y. 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 is than the other. For example, estimate the population of the United States as 3 times 108 and the population of the world as 7 times 109, and determine that the world population is more than 20 strategies. For example: If a times larger. Teacher Target Teacher Target Teacher Target Student Target: woman making $25 an hour gets a 10% raise, she will make an additional 1/10 of her salary an hour, or $2.50, for a new salary of $27.50. If you want to place a towel bar 9 3/4 inches long in the center of a door that is 27 1/2 inches wide, you will need to place the bar about 9 inches from each edge; this estimate can be used as a check on the exact computation. 1. Student Target Student Target I can generate I can convert between I can express numbers as a equivalent expressions numerical forms as single digit times an integer appropriate. (K) power of 10. (K) I can solve multi-step real-life I can use scientific notation to and mathematical problems estimate very large and/or very posed with positive and small quantities. (K) using the properties of operations. (e.g. distributive property, associative property, adding like terms with the addition property of equality) (K) 2. I can apply the properties of operations to generate equivalent expressions. (R) negative rational numbers in any form using tools strategically. (R) I can compare quantities to express how much larger one is compared to the other. (R) I can assess the reasonableness of answers using mental computation and estimation stratagies.(R) Standard Demonstrator Standard Demonstrator Standard Demonstrator M-EE-4 Standard Standard Standard Identify when two expressions Use variables to represent Perform operations with are equivalent (i.e., when the two quantities in a real-world or numbers expressed in scientific expressions name the same mathematical problem, and notation, including problems number regardless of which construct simple equations and where both decimal and value is substituted into them). inequalities to solve problems scientific notation are used. Use by reasoning about the scientific notation and choose quantities. units of appropriate size for For example, the expressions y + y + y and 3y are equivalent because they name the same number regardless of which o number y stands for. Reason about and solve one-variable equations and inequalities. Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology. fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach. For example, the perimeter of a rectangle is 54 cm. Its length is 6 cm. What is its width? Solve word o 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 describe the solutions. Teacher Target Teacher Target Teacher Target Student Target: Student Target Student Target 1. I can identify when two I can fluently solve euations of I can perform operations using expressions are equivalent. the form px=r and p(x+q)=r numbers expressed in scientific 2. I can prove that two equations are equivalent no matter what number is substituted. (R) with speed and accuracy.(K) notations. (K) I can identify the sequence of I can use scientific notations to operations used to solve an algebraic equation of the form px+q>=r and p(x+q)=r (K) I can graph the solution set of the inequality of the form px+q>r or px+q<r, where p, q, and r are specific rational numbers. (K) express very large and very small quantities. (K) I can interpret scientific notation that has been generated by technology. (R) I can choose appropriate units of measure when using scientific notation. (R) I can use variables and construct equations to represent quantities of the form px+q=r and p(x+q)=r (R) I can solve word problems leading to equations of the form px+q=r and p(x+q)=r, where p,q, and r are specific rational numbers. (R) I can 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.(R) I can interpret the solution set of an inequality in the context of the problem. (R) Standard Demonstrator Standard Demonstrator Standard Demonstrator M-EE-5 Standard Standard Standard Understand solving an equation Graph proportional or inequality as a process of relationships, interpreting the answering a question: which unit rate as the slope of the values from a specified set, if any, graph. Compare two different make the equation or inequality proportional relationships true? Use substitution to represented in different ways. determine whether a given For example, compare a number in a specified set makes distance-time graph to a an equation or inequality true. distance-time equation to determine which of two moving objects has greater speed. Teacher Target Teacher Target Teacher Target Student Target: Student Target Student Target 1. I can recognize solving an I can graph proportional equation or inequality as a relationships. (K) process of answering “which values from a specified set, if any, I can compare two different make the equation or inequality proportional relationships true?” (K) represented in different ways. 2. I can know that the solutions (see example in standard)(R) of an equation or inequality are the values that make the equation I can interpret the unit rate of or inequality true. (K) proportional relationships as 3. I can use substitution to the slope of the graph. (R) determine whether a given number in a specified set makes an equation or inequality true. (K) Standard Demonstrator Standard Demonstrator Standard Demonstrator M-EE-6 Standard Standard Standard Use variables to represent Use similar triangles to explain numbers and write expressions why the slope m is the same when solving a real-world or between any two distinct points mathematical problem; on a non-vertical line in the understand that a variable can coordinate plane; derive the represent an unknown number, equation y = mx for a line or, depending on the purpose at through the origin and the equation y = mx + b for a line hand, any number in a specified set. intercepting the vertical axis at b. Teacher Target Teacher Target Teacher Target Student Target Student Target Student Target 1. I can recognize that a I can identify characteristics of variable can represent similar triangles. (K) an unknown number or any number in a specified set.(K) 2. I can relate variables to a context. (R) 3. I can write expressions when solving a real- I can find slope of a line. (K) I can determine the y-intercept of a line. (K) I can analyze patterns for world or mathematical points on a line through the problem. (R) origin. (R) I can derive an equation of the form y=mx for a line through the origin. (R) I can analyze patterns for points on a line that do not pass through or include the origin. (R) I can derive an equation of the form y=mx+b for a line intercepting the vertical axis at b (the y intercept). (R) I can use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane. (R) M-EE-7 Standard Demonstrator Standard Demonstrator Standard Demonstrator Standard Standard Standard Solve real-world and Solve linear equations in one mathematical problems by variable. writing and solving equations of the form x + p = q and px = q for Give o examples of linear equations in cases in which p, q and x are all one variable with one solution, nonnegative rational numbers. infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results (where a and b are different numbers). Solve linear o equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms. Teacher Target Teacher Target Teacher Target Student Target: Student Target Student Target 1. I can define inverse operation. (K) I can solve one step equations 2. I can explain how that has one solution. (K) inverse operations can I can solve one step equations be used in solving one- that has multiple solutions. (K) variable equations. (K) 3. I can apply rules of the I can solve one step equations form x+p=q and px=q that have no solutions. (K) for cases in which p, q, and x are all I can solve linear equations nonnegative rational numbers, to solve real with rational number world and mathematical coefficients. (K) problems. (R) 4. I can solve equations whose I can develop a rule for solving one-step solutions require expanding equations using inverse expressions using the operations with distributive property and/or nonnegative rational collecting like terms. (K) coefficients. (R) 5. I can solve and write equations for real-world mathematical problems containing one unknown. (R) M-EE-8 Standard Demonstrator Standard Demonstrator Standard Demonstrator Standard Standard Standard Write an inequality of the form x Analyze and solve pairs of > c or x < c to represent a simultaneous linear equations. constraint or condition in a realworld or mathematical problem. Understand o Recognize that inequalities of the that solutions to a system of infinitely many solutions; variables correspond to points form x > c or x < c have two linear equations in two represent solutions of such of intersection of their graphs, because points of intersection inequalities on number line satisfy both equations diagrams. simultaneously. o Solve systems of two linear equations in two variables algebraically, and estimate solutions by graphing the equations. Solve simple cases by inspection. For example, 3x + 2y = 5 and 3x + 2y = 6 have no solution because 3x + 2y cannot simultaneously be 5 and 6. Solve real- o world and mathematical problems leading to two linear equations in two variables. For example, given coordinates for two pairs of points, determine whether the line through the first pair of points intersects the line through the second pair. Teacher Target Teacher Target Teacher Target Student Target: Student Target Student Target 1. I can identify the I can identify the solution to a constraint or condition system of two linear equations in a real-world or mathematical problem in order to set up an inequality. (K) 2. I can recognize that inequalities of form x>c or x<c have infinitely many solutions. (K) 3. I can write an inequality of the form x>c or x<c to represent a constraint or condition in a realworld or mathematical problem. (R) 4. Represent solutions to inequalities or the form in two variables as the point of intersection of their graphs. (K) I can describe the point of intersection between two lines as points that satisfy both equations simultaneously. (K) I can define inspection. (K) I can identify cases in which a system of two equations in two unknowns has no solution. (K) I can identify cases in which a x>c or x<c, with system of two equations in two infinitely many unknowns has an infinite solutions, on a number number of solutions. (K) line. (R) I can solve a system of two equations (linear) in two unknowns of algebraically. (K) I can solve simple cases of systems of two linear equations in two variables by inspection. (K) I can estimate the point of intersection for a system of two equations in two unknowns by graphing the equations. (R) M-EE-9 Standard Demonstrator Standard Demonstrator Standard Demonstrator Standard Standard Standard Use variables to represent two quantities in a real-world problem that change in relationship to one another; write an equation to express one quantity, thought of as the dependent variable, in terms of the other quantity, thought of as the independent variable. Analyze the relationship between the dependent and independent variables using graphs and tables, and relate these to the equation. For example, in a problem involving motion at constant speed, list and graph ordered pairs of distances and times, and write the equation d = 65t to represent the relationship between distance and time. Teacher Target Teacher Target Teacher Target Student Target: Student Target Student Target Standard Demonstrator Standard Demonstrator 1. I can define independent and dependent variables. (K) 2. I can use variables to represent two quantities in a real-world problem that change in relationship to one another. (K) 3. I can write an equation to express one quantity (dependent) in terms of the other quantity (independent). (R) 4. I can analyze the relationship between the dependent variable and independent variable using tables and graphs. (R) 5. I can relate the data in a graph and table to the corresponding equation. (R) Standard Demonstrator