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| Content Strands by Grade: |
6th Grade 1. Number Sense |
7th Grade 1. Number Sense |
8th Grade 1. Number Sense |
| The Number System |
1a. DIVIDE FRACTIONS Understand that 2. LONG DIVISION NO REMAINDERS 4. NUMBER THEORY 5. POSITIVE/NEGATIVE INTEGERS 6. Extend Number Lines and Coordinate Axes to include RATIONAL/NEGATIVE numbers on the Coordinate Plane: 6a. Recognize OPPOSITE SIGNS of numbers as indicating opposite sides of 0; and the opposite of the opposite of a number is the number itself 6c. FIND and GRAPH positive/negative rational numbers on the Coordinate Plane |
1a. ADD/SUBTRACT FRACTIONS. Represent Fraction Operations on Vertical and Horizontal Number Lines. 1b. Understand (p + q) as a number that is q units away from p, and p units away from q, and that the sum of any number and its opposite, such as p + (-p), is 0. 1c. Understand what is meant by the Opposite of a number, and that subtracting a number is the same as adding its opposite. 2a. MULTIPLY/DIVIDE FRACTIONS in situations with DISTRIBUTIVE PROPERTY, NEGATIVES, and when the PRODUCT = 1. 2b. and that (-p)/(-q) = p/q |
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This page is under construction. Transfer of this information in progress:
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Number System |
1a. DIVIDE FRACTIONS |
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1. IRRATIONAL numbers. Understand that every number has a decimal expansion; show that the decimal expansion of rational numbers repeat eventually. CONVERT FRACTIONS TO REPEATING DECIMALS |
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2. LONG DIVISION Convert remainders to decimals or fraction answers |
2. MULTIPLY/DIVIDE FRACTIONS
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2. Use rational approximations to compare the size of irrational numbers; locate irrational numbers on a number line; estimate the value of irrational expressions. |
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Number System |
3. DECIMAL OPERATIONS |
2d. CONVERT FRACTIONS TO DECIMALS using long division; know that the decimal form of a rational number terminates in 0s or eventually repeats |
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4a. Find GCF of 2 numbers <100 4b. Find LCM of 2 #s ≤ 12 |
3. Solve FRACTION WORD PROBLEMS involving all four operations with rational numbers |
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5a. Positive and negative values are used to describe quantities with opposite directions. OPPOSITE = NEGATIVE |
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6. Extend Number Lines and Coordinate Axes to include RATIONAL/NEGATIVE #s ON THE COORDINATE PLANE. |
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6a. Recognize OPPOSITE SIGNS of #s as indicating OPPOSITE SIDES of 0; and the opposite of the opposite of a # is the # itself |
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7b. For example, write -3 oC > -7 oC to express the fact that -3 oC is warmer than -7 oC. |
7. ORDERING and ABSOLUTE VALUE OF RATIONAL NUMBERS 7d. Distinguish comparison of Absolute Value from statements about Order |
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8. GRAPH POINTS and FIND DISTANCE between points that share a coordinate (horizontal and vertical distance) |
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Expressions and Equations |
1. CONSTANTS. Write/evaluate WHOLE-NUMBER EXPONENTS |
1. ADD/SUBTRACT/FACTOR and EXPAND linear expressions with rational coefficients |
1. INTEGER EXPONENTS. 0, negative exponents. Generate equivalent exponent expressions. |
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2. VARIABLES. Write, read, and evaluate expression in which letters stand for numbers. 2b. Identify parts of expressions using math terms (sum, term, product, factor, quotient, coefficient); view multiple parts of an expression as a single entity. |
1a. COMBINE LIKE TERMS with RATIONAL COEFFICIENTS |
2. Use SQUARE/CUBE ROOTS to represent solutions, solve equations in the form: x2=p and x3=p |
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Ex. 3(2+y)=6+3y; y+y+y=3y |
3. Generate EQUIVALENT EXPRESSIONS |
2. REWRITE EXPRESSIONS to shed light on how the quantities are related |
3. SCIENTIFIC NOTATION EXPRESSIONS for large and small quantities. |
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4. IDENTIFY equivalent expressions |
3. Solve MULTI-STEP world problems with positive and negative rational numbers in any form (whole numbers, fractions, decimals) |
3a. Express how many times as much one quantity expressed in scientific notation is to another. |
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5. EQUATIONS/INEQUALITIES; value(s that make them true |
4. Solve MULTI-STEP EQUATIONS with RATIONAL COEFFICIENTS in the form |
4. SCIENTIFIC NOTATION OPERATIONS (+/-/*/÷). Determine appropriate measurements of very large/small quantities. Translate between SCIENTIFIC <> STANDARD notation |
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6. USE VARIABLE expressions to represent numbers in world problems |
4a. Compare an algebraic solution to an arithmetic solution, identifying the sequence of operations used in each |
5. GRAPH PROPORTIONAL RELATIONSHIPS. Interpret UNIT RATE as SLOPE. Compare proportional relationships expressed in different ways. |
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7. Solve world problems by WRITING/SOLVING 1-STEP EQUATIONS (x+p=q or px=q) |
4b. Solve MULTI-STEP INEQUALITIES in the form |
6. DERIVE EQUATIONS in the form of y=mx for line through origin, and y=mx+b for a line through the y-axis at b. Use Similar Triangles to explain why the slope is the same between any two points on a line. |
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8. WRITE INEQUALITIES to represent a constraint or condition; recognize when inequalities have infinitely many solutions, represent solutions on number lines |
4bb. GRAPH SOLUTIONS of INEQUALITIES and INTERPRET CONTEXT |
7. Solve 1-variable linear equations with rational coefficients, resulting in x=a, a=a, or a=b (i.e. 1 solution, infinite solutions, and no solution) |
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9. WRITE EQUATIONS that represent a RELATIONSHIP between two variables; d=rt |
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8. Solve Systems of Equations by Graphing, Substitution, and Elimination. Determine which method to use based on given equations. Determine when a system has “1 solution, no solution, or infinitely many.” |
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8b. Solve simple Systems by Inspection |
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Ratios & Proportions |
SET UP RATIOS to Compare numbers/relationships, a:b |
1. Compute Unit Rates associated with Ratios of FRACTIONS |
F1. Understand Functions as RULES: 1 output per input; graph of a function is the “set of ordered pairs consisting of input/outputs” |
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2a. Understand UNIT RATES associate with ratio a:b as a/b:1 |
2a. Recognize proportional relationships by testing ratios in a table, or graphing on a coordinate plane and observing the line |
2. Compare properties of 2 functions represented in different ways: algebraically, graphically, in tables, or verbal description |
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3a. Find Missing Values in Proportion Tables; Use tables to compare ratios |
2b. ID Constant of Proportionality (unit rate) in tables, graphs, equations, diagrams, verbal |
3. Interpret equations y=mx+b as defining a linear function; give examples of non-linear functions |
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3b. Calculate UNIT PRICE and Average/Constant Speed (d=rt) 3c. Find the percent of a quantity; solve problems involving finding the whole, given a part and the percent |
2c. Represent proportional relationships by equations y=kx
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4. Interpret Rate of Change and Initial Value of a linear function, in terms of the situation is models. Determine slope and intercept from 2 points. 5. Describe a relationship by analyzing graphs; Graph functions described verbally |
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3d. Convert measurement units; manipulate and transform units appropriately when Multiplying/Dividing |
3. Use proportional relationships |
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Geometry |
1. AREAS of TRIANGLES, QUADRILATERALS, and POLYGONS by COMPOSITION and DECOMPOSITION |
1. Determine SCALE FACTORS by observing images; Compute Lengths/Areas from SCALE DRAWINGS; REPRODUCE an image at a different scale |
1. Properties of ROTATIONS, REFLECTIONS, and TRANSLATIONS (lines, angles) |
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2. VOLUMES of RECTANGULAR PRISMS with FRACTIONAL EDGES. Apply V=lwh and V=Bh to solve real-world shapes |
2. Draw geometric shapes with given conditions. Construct Triangles from given angles/sides. |
2. PROVE CONGRUENCE with ISOMETRIES |
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3. Coordinate Plane. DRAW POLYGONS and find Horizontal/Vertical SIDE LENGTHS/DISTANCES given VERTICES. |
3. Describe 2-D figures resulting from SLICING 3-D figures in plane sections. |
3. Describe effects of DILATIONS, TRANSLATIONS, ROTATIONS, and REFLECTIONS using coordinates |
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4. Use NETS to find the SURFACE AREA of figures; Represent figures using nets |
4. AREA/CIRCUMFERENCE of circles; informally derive pi |
4. Understand if figures are Similar based on Transformations and Dilations |
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5. Angle relationship facts: SUPPLEMENTARY, COMPLEMENTARY, VERTICAL, ADJACENT angles, solve for unknowns |
5. ANGLE SUM and EXTERIOR ANGLES of Triangles; angles created when Parallel Lines are cut by transversal; angle-angle criterion for similarity of triangles |
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6. AREA, VOLUME, SURFACE AREA of 2- and 3-D objectives composed of triangles, quadrilaterals, polygons, cubes, and right prisms |
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Statistics/Probability |
1. Recognize STATISTICAL QUESTIONS - ones that anticipate variability. Compose a statistical question |
1. Understand that examining samples of a population can provide insight about that population, and that generalizations are only valid if the sample is REPRESENTATIVE of that population. RANDOM SAMPLING = REPRESENTATIVE SAMPLES |
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2. Describe Data DISTRIBUTIONS by Center, Spread, and Shape |
2. Use data from a sample to draw INFERENCES about that population. Ex. Estimate the mean word length in a book by randomly sampling words from the book; or predict the winner of a school election based on randomly samples survey data.
Use random sampling to draw inferences about a population. |
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3. Recognize and calculate MEASURES OF CENTER and VARIABILITY |
3. Draw informal comparative inferences about 2 populations. Assess the degree of visual overlap of two distributions with similar variabilities; measure the difference between the 2 centers, and express that difference as a multiple of a measure of variability (M.A.D. or ST.DEV.) |
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4. DISPLAY DATA on Number Lines, Dot Plots, Histograms, and Box Plots |
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5. Summarize data sets in relation to context, such as by |
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