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7th grade

Unit 1-Rational Numbers

CC.7NS.2d  Convert a rational number to a decimal using long division; Know that the decimal form of a rational number terminates in 0s or eventually repeats.

CC.7.NS.1a Describe situations in which opposite quantities combine to make 0...

CC.7.NS.1b Understand p+q as the number located a distance /q/ from p, in the positive or negative directions depending on whether q is positive or negative. Show that a number and its opposite have a sum or 0(are additive inverses). Interpret sums of rational numbers by describing real- world contexts.

CC.7NS.1d Apply properties of operations as strategies to add and subtract rational numbers.

CC.7.NS.1c Understand subtraction of rational numbers as adding the additive inverse, p-q=p+(-q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts.

CC.7NS.1d Apply properties of operations as strategies to add and subtract rational numbers.

CC.7.NS.2a Understand that multiplication is extended from fractions to rational numbers by requiring that operations continue to satisfy the properties of operations, particularly the distributive property, leading to products such as (-1)(-1)=1  and the rules for multiplying signed numbers. Interpret products of rational numbers by describing real-world contexts.

CC.7.NS.2c Apply properties of operations as strategies to multiply and divide rational numbers.

CC.7.NS.2b Understand that integers can be divided, provided that the divisor, provided that the divisor is not zero, and every quotient of integers (with non-zero divisor) is a rational number. If p and q are integers, then (-p/q)=(-p)/q=p/(-q). Interpret quotients of rational numbers by describing real world contexts.

CC.7NS.2c Apply properties of operations as strategies to multiply and divide rational numbers.

CC.7NS.3 Solve real-world and mathematical problems involving the four operations with rational numbers.


Unit 2-Ratios and Proportional Relationships

CC.7NS.3 Solve real-world and mathematical problems involving the four operations with rational numbers.

CC.7.RP.1 Compute unit rates associated with ratios and fractions, including ratios of lengths, aras and other quantities measured in like or different units.

CC.7RP.2a Decide whether two quantities are in a proportional relationship, by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.

CC.7.RP.2b Identify the constant of proportionality (unit rate) in tables graphs, equations, diagrams, and verbal descriptions of proportional relationships.

CC.7.RP.2c Represent proportional relationships by equations.

CC.7.RP.2d Explain what a point (x,y) on the graph of a proportional relationship means in terms of the situation with special attention to the points (0,0) and (1,r) where r is the unit rate. 

CC.7RP.3 Use proportional relationships to solve multistep ratio and percent problems.


 Unit 3-Expressions and Equations

CC.7.RP.3 Use proportional relationships to solve multistep ratio and percent problems.

CC.7.EE.1 Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients.

CC.7.EE.2 Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related.

CC.7.EE.3 Solve multi-step real-life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between firms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies.

CC.7.EE.4a Solve word problems leading to equations of the form px + q =r and p(x+q) = r, where p, q r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach.

CC7.EE.4b Solve word problems leading to inequalities of the form 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.  

 Unit 4-Geometry

CC.7.G.1 Solve problems involving scale drawings of geometric figures, including computing actual lengths and areas from a scale drawing and reproducing a scale drawing at a different scale.

CC.7.G.2 Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angels or sides, noticing when conditions determine a unique triangle, more than one triangle, or no triangle.

CC.7.G.3 Describe the two-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids.

CC.7.G.5 Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.

Unit 5-Geometry

CC.7.G.4 knows the formulas for the area and circumference of a circle and uses them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.

CC.7.G.6 Solve real-world and mathematical problems involving area, volume, and surface area of two- and three- dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms.

Unit 6-Probability and Statistics

CC.7.SP.1 Understand that statistics can be used to gain information about a population by examining a sample of the population; generalizations about a population from a sample are valid only if the sample is representative of that population. Understand that random sampling tends to produce representative samples and support valid inferences. 

CC.7.SP.2 Use data from a random sample to draw inferences about a population with an unknown characteristic of interest. Generate multiple samples (or simulated samples) of the same size to gauge the variation in estimates or predictions. 

CC.7.SP.3 informally assesses the degree of visual overlap of two numerical data distributions with similar variability’s, measuring the difference between the centers by expressing it as a multiple of a measure of variability.

CC.7.SP.4 Use measures of center and measures of variability for numerical data from random samples to draw informal comparative inferences about two populations. 

Unit 7-Probability and Statistics

CC.7.SP.5 Understand that the probability of a chance event is a number between 0 and 1 that expresses the likelihood of the event occurring. Larger numbers indicate greater likelihood. A probability near 0 indicates an unlikely event, a probability around 1/2 indicates an event they is neither unlikely nor likely, a probability near 1 indicates a likely, event.

CC.7.SP.6 Approximate the probability of a chance event by collecting data on the chance process that produces it and observing its long-run relative frequency given the probability.

CC.7SP.7a developed a uniform probability model by assigning equal probability to all outcomes, and uses the model to determine probabilities of events

CC.7.Sp.7b Developed a uniform probability model (Which may not be uniform) by observing frequencies in data generated format chance process.

CC.7.SP.8a Understand that, just as with simple events, the probability of a compound event is the fraction of outcomes in a sample space for which the compound event occurs.

CC.SP.7.8b Represent sample spaces for compound events using methods such as organized list, tables and tree diagrams. For an event described in everyday language (e.g., "rolling doubles sixes"), identify the outcomes in the sample space which compose the event. 

CC.7.SP.8c Design and use a simulation to generate frequencies for compound events. 

8th grade

Unit 1-Integer Exponents and Scientific Notation

CC.8.EE.1 Know and apply the properties of integer exponents to generate equivalent numerical expressions.

CC.8.EE.2 Use square root and cube root symbols to represent solutions to equations of the form x squared =p and x cubed =p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes... know that the square root of 2 is irrational.

CC.8EE.3 Use numbers expressed in the form of single digits times an integer power of 10 to estimate very large or very small quantities and to express how many times as much one is than the other.

CC.8.EE.4 Perform operations with numbers expressed in scientific notation, including problems where both the decimal and scientific notation are used.

CC.8.NS.1 Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.

CC.8.NS.2 Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expression.

Unit 2-Linear Functions

CC.8.EE.5 Graph proportional relationships interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways.

CC.8.EE.6..Derive the equation y=mx for a line through the origin and the equation y=mx+b for a line intercepting the vertical axis at b.

CC.8.F.1 Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding outputs.

CC.8.F.3 Interpret the equation y=mx+b as defining a linear function, whose graph is a straight line.

CC.8.F.4 Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x,y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value or a linear function in terms of the situation it model, and in terms of its graph or a table of values.

CC.8.F.5 Describe qualitatively the functional relationship between two quantities by analyzing a graph ...Sketch a graph that exhibits the qualitative features of a function that has been described verbally.

Unit 3-Linear Equations

CC.8.EE.7a Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities in 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). 

CC.8.EE.7b Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms.

CC.8.EE.8a Understand that solutions to a system of two linear equations in two variables correspond to points of intersection of their graphs because points of intersection satisfy both equations simultaneously.

CC.8.EE.8c Solve systems of two linear equations on two variables algebraically, and estimate solutions by graphing the equations. Solve simple cases by inspection.

CC.8.EE.8c Solve real-world and mathematical problems leading to two linear equations in two variables.

Unit 4-The concept of Congruence/Similarity

CC.8.G.1 Verify experimentally the properties of rotations, flections, and translations:

A. Lines are taken to lines, and line segments to line segments of the same length.

B. Angles are taken to angles are taken to angels of the same measure.

C. Parallel lines are taken to parallel lines.

CC.8G.2 Understand the a two dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.

CC.8.G.3 Describe the effect of dilations, translations, rotations, and reflections, on two- dimensional figures using coordinates.

CC.8.G.4 Understand that a two- dimensional figure is similar to another if the second can be obtained from the fist by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them. 

Unit 5-Examples of Functions from Geometry

CC.8.EE.6 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.

CC.8.G.5 Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

CC.8.G.6 Explain a proof of the Pythagorean Theorem and its converse.

CC.8.G.7 Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.

CC.8.G.8 Apply the Pythagorean Theorem to find the distance between two points in a coordinate system.

CC.8.G.9 Know the formulas for the volumes of cones, cylinders, and spheres, and use them to solve real-world and mathematical problems.

Unit 6-Introduction to Irrational Numbers Using Geometry

CC.8.SP.1 Construct and interpret scatter plots for vicariate measurement data to investigate patterns of association between two quantities. Describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association. 

CC.8.SP.2 Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

CC.8.SP.4  Use the equations of a linear model to solve problems in the context of vicariate measurement data, interpreting the slope and intercept. 

CC.8.SP.4 Understand that patterns of association can also be seen in bipartite categorical data by displaying frequencies and relative frequencies in a two-way table. Construct and interpret a two-way table summarizing data one two categorical variables collected from the same subjects. Use relative frequencies calculated for rows or columns to describe possible association between the two variables.  

Dover High School   2368 Route 22   Dover Plains, NY 12522   Phone: (845) 877-5750   Fax: (845) 877-5759

The Dover Union Free School District does not discriminate on the basis of race, color, national origin, sex, disability, or age in its programs and activities.  
The following people have been designated to handle inquiries regarding the non-discrimination policies:

Donna Basting, Assistant Superintendent for Curriculum, Staff Development, and Technology
2368 Route 22, Dover Plains, NY  12522
845-877-5700 x1233 

Genie Angelis, High School Principal
2368 Route 22, Dover Plains, NY  12522
845-877-5700 x1143

For further information on notice of non-discrimination, visit for the address and phone number of the office that serves your area, or call 1-800-421-3481.

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