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Oroville Union High School District Pre-Algebra COURSE TITLE: Pre-Algebra |
| Number Sense 1.0 |
| Students compare and order positive and negative fractions, decimals, and mixed numbers. Students solve problems involving fractions, ratios, propor-tions, and percentages: |
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Scientific Notation
The learner will be able to read, write, and compare rational numbers in scientific notation (positive and negative powers of 10) with approximate numbers using scientific notation.
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Rational Numbers
The learner will be able to add, subtract, multiply, and divide rational numbers (integers, fractions, and terminating decimals) and take positive rational numbers to whole-number powers.
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Fractions, Decimals, & Percents
The learner will be able to convert fractions to decimals and percents and use these representations in estimations, computations, and applications.
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Rational & Irrational Numbers
The learner will be able to differentiate between rational and irrational numbers.
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Terminating & Repeating Decimals
The learner will be able to know that every rational number is either a terminating or repeating decimal and be able to convert terminating decimals into reduced fractions.
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Percentage Calculations
The learner will be able to calculate the percentage of increases and decreases of a quantity.
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Problem Solving: Interest, Etc.
The learner will be able to solve problems that involve discounts, markups, commissions, and profit and compute simple and compound interest.
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| Number Sense 2.0 |
| Students calculate and solve problems involving addition, subtraction, multiplication, and division. |
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Negative Whole-Number Exponents
The learner will be able to understand negative whole-number exponents. Multiply and divide expressions involving exponents with a common base.
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Fractions: Factoring
The learner will be able to add and subtract fractions by using factoring to find common denominators.
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Rational Numbers: Exponent Rules
The learner will be able to multiply, divide, and simplify rational numbers by using exponent rules.
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Integers: Square & Not Square
The learner will be able to use the inverse relationship between raising to a power and extracting the root of a perfect square integer; for an integer that is not square, determine without a calculator the two integers between which its square root lies and explain why.
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Absolute Value of a Number
The learner will be able to understand the meaning of the absolute value of a number; interpret the absolute value as the distance of the number from zero on a number line; and determine the absolute value of real numbers.
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| Algebra and Functions 1.0 |
| Students write verbal expressions and sentences as algebraic expressions and equations; they evaluate algebraic expressions, solve simple linear equations, and graph and interpret their results. |
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Expressions, Equations, & Inequaliti
The learner will be able to use variables and appropriate operations to write an expression, an equation, an inequality, or a system of equations or inequalities that represents a verbal description (e.g., three less than a number, half as large as area A).
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Order of Operations
The learner will be able to use the correct order of operations to evaluate algebraic expressions such as 3(2xÊ +Ê 5) 2.
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Simplifying Numerical Expression
The learner will be able to simplify numerical expressions by applying properties of rational numbers (e.g., identity, inverse, distributive, associative, commutative) and justify the process used.
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Algebraic Terminology
The learner will be able to use algebraic terminology (e.g., variable, equation, term, coefficient, inequality, expression, constant) correctly.
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Graphing Quantitative Relationships
The learner will be able to represent quantitative relationships graphically and interpret the meaning of a specific part of a graph in the situation represented by the graph.
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| Algebra and Functions 2.0 |
| Students interpret and evaluate expressions involving integer powers and simple roots. |
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Simplifying Expressions: Exponents
The learner will be able to interpret positive whole-number powers as repeated multiplication and negative whole-number powers as repeated division or multiplication by the multiplicative inverse. Simplify and evaluate expressions that include exponents.
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Monomials
The learner will be able to multiply and divide monomials; extend the process of taking powers and extracting roots to monomials when the latter results in a monomial with an integer exponent.
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| Algebra and Functions 3.0 |
| Students graph and interpret linear and some nonlinear functions. |
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Graphing Functions
The learner will be able to graph functions of the form y = nx 2 and y = nx 3 and use in solving problems.
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Plotting Values of Volumes
The learner will be able to plot the values from the volumes of three-dimensional shapes for various values of the edge lengths (e.g., cubes with varying edge lengths or a triangle prism with a fixed height and an equilateral triangle base of varying lengths).
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Graphing Linear Functions
The learner will be able to graph linear functions, noting that the vertical change (change in y-value) per unit of horizontal change (change in x-value) is always the same and know that the ratio (“rise over run”) is called the slope of a graph.
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Plotting Values of Quantities
The learner will be able to plot the values of quantities whose ratios are always the same (e.g., cost to the number of an item, feet to inches, circumference to diameter of a circle). Fit a line to the plot and understand that the slope of the line equals the quantities.
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| Algebra and Functions 4.0 |
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Students solve simple linear equations and inequalities over the rational numbers. |
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Two-Step Linear Equations & Inequali
The learner will be able to solve two-step linear equations and inequalities in one variable over the rational numbers, interpret the solution or solutions in the context from which they arose, and verify the reasonableness of the results.
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Multistep-Problem Solving
The learner will be able to solve multistep problems involving rate, average speed, distance, and time or a direct variation.
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| Measurement and Geometry 1.0 |
| Students choose appropriate units of measure and use ratios to convert within and between measurement systems to solve problems. |
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Measurement Systems
The learner will be able to compare weights, capacities, geometric measures, times, and temperatures within and between measurement systems (e.g., miles per hour and feet per second, cubic inches to cubic centimeters).
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Drawings & Models Made to Scale
The learner will be able to construct and read drawings and models made to scale.
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Measures Expressed as Rates & Produc
The learner will be able to use measures expressed as rates (e.g., speed, density) and measures expressed as products (e.g., person-days) to solve problems; check the units of the solutions; and use dimensional analysis to check the reasonableness of the answer.
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| Measurement and Geometry 2.0 |
| Students compute the perimeter, area, and volume of common geometric objects and use the results to find measures of less common objects. They know how perimeter, area, and volume are affected by changes of scale: |
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Formulas: Perimeter, Surface, & Volu
The learner will be able to use formulas routinely for finding the perimeter and area of basic two-dimensional figures and the surface area and volume of basic three-dimensional figures, including rectangles, parallelograms, trapezoids, squares, triangles, circles, prisms, and cylinders.
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Area of Complex & Irregular Figures
The learner will be able to estimate and compute the area of more complex or irregular two- and three-dimensional figures by breaking the figures down into more basic geometric objects.
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Measuring 3-Dimensional Objects
The learner will be able to compute the length of the perimeter, the surface area of the faces, and the volume of a three-dimensional object built from rectangular solids. Understand that when the lengths of all dimensions are multiplied by a scale factor, the surface area is multiplied by the square of the scale factor and the volume is multiplied by the cube of the scale factor.
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Measurement: Change of Scale
The learner will be able to relate the changes in measurement with a change of scale to the units used (e.g., square inches, cubic feet) and to conversions between units (1 square foot = 144 square inches or [1 ft 2 ] = [144 in 2 ], 1 cubic inch is approximately 16.38 cubic centimeters-meters or [1Ê in 3 ] = [16.38 cm 3 ]).
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| Measurement and Geometry 3.0 |
| Students know the Pythagorean theorem and deepen their understanding of plane and solid geometric shapes by constructing figures that meet given conditions and by identifying attributes of figures. |
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Elements of Geometric Figures
The learner will be able to identify and construct basic elements of geometric figures (e.g., altitudes, mid-points, diagonals, angle bisectors, and perpendicular bisectors; central angles, radii, diameters, and chords of circles) by using a compass and straightedge.
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Coordinate Graphs
The learner will be able to understand and use coordinate graphs to plot simple figures, determine lengths and areas related to them, and determine their image under translations and reflections.
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Pythagorean Theorem
The learner will be able to know and understand the Pythagorean theorem and its converse and use it to find the length of the missing side of a right triangle and the lengths of other line segments and, in some situations, empirically verify the Pythagorean theorem by direct measurement.
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Congruence of Geometrical Figures
The learner will be able to demonstrate an understanding of conditions that indicate two geometrical figures are congruent and what congruence means about the relationships between the sides and angles of the two figures.
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2-Dimensional Patterns
The learner will be able to construct two-dimensional patterns for three-dimensional models, such as cylinders, prisms, and cones.
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3-Dimensional Geometric Objects
The learner will be able to identify elements of three-dimensional geometric objects (e.g., diagonals of rectangular solids) and describe how two or more objects are related in space (e.g., skew lines, the possible ways three planes might intersect).
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| Statistics, Data Analysis, & Prob. 1.0 |
| Students collect, organize, and represent data sets that have one or more vari-ables and identify relationships among variables within a data set by hand and through the use of an electronic spreadsheet software program. |
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Displays for Data Sets
The learner will be able to know various forms of display for data sets, including a stem-and-leaf plot or box-and-whisker plot; use the forms to display a single set of data or to compare two sets of data.
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Numerical Variables on Scatterplots
The learner will be able to represent two numerical variables on a scatterplot and informally describe how the data points are distributed and any apparent relationship that exists between the two variables (e.g., between time spent on homework and grade level).
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Data Set Quartiles
The learner will be able to understand the meaning of, and be able to compute, the minimum, the lower quartile, the median, the upper quartile, and the maximum of a data set.
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| Mathematical Reasoning 1.0 |
| Students make decisions about how to approach problems. |
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Problem Analysis
The learner will be able to analyze problems by identifying relationships, distinguishing relevant from irrelevant information, identifying missing information, sequencing and prioritizing information, and observing patterns.
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Mathematical Conjectures
The learner will be able to formulate and justify mathematical conjectures based on a general description of the mathematical question or problem posed.
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Problem Disaggregation
The learner will be able to determine when and how to break a problem into simpler parts.
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| Mathematical Reasoning 2.0 |
| Students use strategies, skills, and concepts in finding solutions. |
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Estimation
The learner will be able to use estimation to verify the reasonableness of calculated results.
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Complex Problem Solving
The learner will be able to apply strategies and results from simpler problems to more complex problems.
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Estimation & Logical Reasoning
The learner will be able to estimate unknown quantities graphically and solve for them by using logical reasoning and arithmetic and algebraic techniques.
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Conjectures: Inductive & Deductive
The learner will be able to make and test conjectures by using both inductive and deductive reasoning.
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Explaining Mathematical Reasoning
The learner will be able to use a variety of methods, such as words, numbers, symbols, charts, graphs, tables, diagrams, and models, to explain mathematical reasoning.
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Expressing Solutions Clearly
The learner will be able to express the solution clearly and logically by using the appropriate mathematical notation and terms and clear language; support solutions with evidence in both verbal and symbolic work.
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Exact & Approximate Solutions
The learner will be able to indicate the relative advantages of exact and approximate solutions to problems and give answers to a specified degree of accuracy.
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Checking Validity by Context
The learner will be able to make precise calculations and check the validity of the results from the context of the problem.
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| Mathematical Reasoning 3.0 |
| Students determine a solution is complete and move beyond a particular problem by generalizing to other situations. |
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Reasonableness of a Solution
The learner will be able to evaluate the reasonableness of the solution in the context of the original situation.
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Methods of Deriving Solutions
The learner will be able to note the method of deriving the solution and demonstrate a conceptual understanding of the derivation by solving similar problems.
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Generalizing Results
The learner will be able to develop generalizations of the results obtained and the strategies used and apply them to new problem situations.
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