Grade 8 Mathematics Curriculum Calendar Mapping

September: STANDARD 4.1 - Number and Numerical Operations: All students will develop number sense and will perform standard numerical operations and estimations on all types of numbers in a variety of ways. Estimation Strategies, Use of Strategies, Patterns, Relationships, Data Sets: • Estimate answers to computational type problems taught at grade level to determine reasonableness of answer • Estimate percentages of numbers • Use equivalent numbers to make estimation easier, as in fractions to decimals to percents • Determine and explain rational, whether to overestimate or underestimate, in problem-solving • Describe and represent relationships using table, graphs, and rules • Select an appropriate format for presenting data which has been collected • Interpret data • Evaluate arguments based on data analysis • Find the probability of simple and compound events • Use factorial notation to find permutations of objects taken in groups of more than one at a time and to distinguish between permutations and combinations

October: STANDARD 4.1- Number and Numerical Operations: All students will develop number sense and will perform standard numerical operations and estimations on all types of numbers in a variety of ways. Number Sense, Variety of Numerical Forms, Use of Numbers: • Rewrite numbers from standard form to scientific notation • Show the relationship of scientific notation to place value using positive and negative exponents • Define the absolute value of a given rational number an integer • Find the origin, the x- and y-axis, and the four quadrants using real-life examples (maps in the coordinate plane) • Read, write, and graph ordered pairs from real-life situations • Use prime factorization of a composite number in order to find GCF and LCM • Relate proportions and ratios • Identify square and cubes of a number 45

• Create, recognize, and explain numerical patterns that include decimals and fractions

November: STANDARD 4.2 - Geometry and Measurement: All students will develop spatial sense and the ability to use geometric properties, relationships, and measurement to model, describe and analyze phenomena. Spatial Sense, Geometric Properties, Use of Geometric Properties in Problem Solving: • Construct congruent angles and segments • Construct line and angle bisectors • Identify and construct perpendicular bisectors of a segment • Identify parallel lines and their transversal using correct symbols • Identify right angles formed by perpendicular lines and mark figure with proper symbol • Identify line and point symmetry • Identify translation, reflection, rotation, dilation in designs • Verbalize definition of translation, reflection, rotation, dilation • Identify similar polygons arranged in various positions • Use ordered pairs and coordinate planes to transform polygons into different positions (rigid motion) • Create a table showing the developing pattern of a fractal • Memorize and apply formulae for o Circumference and area of a circle o Perimeter and area of a triangle o Perimeter and area of a quadrilateral o Volume of a prism, cylinder, cone and sphere

December: STANDARD 4.2 - Geometry and Measurement: All students will develop spatial sense and the ability to use geometric properties, relationships, and measurement to model, describe and analyze phenomena. Measurement: • Convert measurement units from one form to another; carry out calculations that involve various units of measure • Choose two units of measure to measure time, length, capacity, or mass, and compare the measures stating which is more accurate • Compute surface area and volume of actual object and then, given a scale factor, enlarge and construct new model • Read and interpret various scales including those based on number lines and maps 46

• Explain impact of change of object's linear dimensions on its perimeter, area, and volume • State situations and propose solutions in which direct measurements cannot be used January~ebruary:

STANDARD 4.1 - Number and Numerical Operations: All students will develop number sense and will perform standard numerical operations and estimations on all types of numbers in a variety of ways. Understanding, Selection, Application of Various Methods for Performing Numerical Operations: • Find value of numbers written in exponential form • Multiply and divide using scientific notation • Do square root estimates • Apply the Pythagorean Theorem to find the missing sides of right triangles • Identify sine, cosine, and tangent rations • Find simple and compound interest, commission, profit and loss, charges on credit card balance, and income tax • Use direct, inverse, and partitive proportion • Solve real-life applications of percent (gratuities, discount, simple and compound interest, circle graphs)

March: STANDARD 4.3 - Patterns and Algebra: All students will represent and analyze relationships among variable quantities and solve problems involving patterns, functions, and algebraic concepts and processes. STANDARD 4.4 - Data Analysis, Probability, and Discrete Mathematics: All students will develop an understanding of the concepts and techniques of data analysis, probability, and discrete mathematics, and will use them to model situations, solve problems, and analyze and draw appropriate inferences from data. Predictions, Algebraic Concepts, Algebraic Processes, Use of Algebraic Concepts: • Make predictions based on mathematical probabilities and experimental results • Solve two-step equations with one variable using all rational numbers (3-2x = -1) • Use properties of real numbers for addition and multiplication [2(x + 6) = 20] • Translate a word sentence into an inequality • State an inequality verbally • Solve one- and two-step inequalities • Graph inequalities on the coordinate plane • Use formulas to solve all geometric equations

47

AprillMay:

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STANDARD 4.3 - Patterns and Algebra: All students will represent and analyze relationships among variable quantities and solve problems involving patterns, functions, and algebraic concepts and processes STANDARD 4.5 - Mathematical Processes: All students will use mathematical processes of problem solving, communication, connections, reasoning, representations, and technology to solve problems and communicate mathematical ideas. Building Blocks of Calculus • Express the difference between linear and exponential growth by making tables, graphs, and charts • Continue evaluating infinite sequences • Distinguish between increasing (direct variations), decreasing (inverse variation) when working with graphs • Represent, analyze, and predict relations between quantities, especially quantities changing over time • Develop informal ways of approximating surface area and volume • Expand explanation of the impact on surface area and volume when linear dimensions change

48

## September: October

All students will develop number sense and will perform standard numerical operations and estimations on all types ... Use equivalent numbers to make estimation easier, as in fractions to decimals to percents. â¢ Determine and ... Compute surface area and volume of actual object and then, given a scale factor, enlarge and ...

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