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Grade 8 - The Number System
Standard 8.NS.1.5 - Understand and calculate the length using the scale factor.
Students will be expected to solve problems that involve rates, ratios, and proportional reasoning. • Performance Indicators - N05.01 Explain the meaning of a/b within a given context. - N05.02 Provide a context in which a/b represents a fraction, a rate, a ratio, a quotient, and a probability. - N05.03 Use pictures, models, or manipulatives to make sense of a proportional situation. - N05.04 Differentiate between proportional and non-proportional contexts. - N05.05 Use multiplicative relationships to compare quantities and to predict the value of one quantity based on the values of another. - N05.06 Use multiple methods to solve proportional tasks and understand that these methods are related to each other. - N05.07 Use estimation to determine the reasonableness of an answer. - N05.08 Solve a proportion using mental mathematics, pencil and paper, or technology, as appropriate. - N05.09 Solve a given problem involving rate, ratio, or percent using mental mathematics, pencil and paper, or technology, as appropriate. - N05.10 Create problems that are examples of proportional reasoning.