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Huntington Beach City School District
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Grade 6 Mathematics
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Standards Schedule
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Orange Interim Assessment: December 3 - 14, 2018
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The Number System
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Compute fluently with multi-digit numbers and find common factors and multiples.
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6.NS.4 * Find the greatest common factor of two whole numbers less than or equal to 100 and find the least common multiple of two whole numbers less than or equal to 12. Use distributive property to express a sum of two whole numbers 1-100 with a common factor as a multiple of a sum of two whole numbers with no common factor [For example, express 36 + 8 as 4(9 + 2)].
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Ratios and Proportional Relationships
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Understand ratio concepts and use ratio reasoning to solve problems.
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6.RP.1 Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities. (For example, "The ratio of wings to beaks in the bird house at the zoo was 2:1,because for every 2 wings there was 1 beak." "For every vote candidate A received, candidate C received nearly three votes.")
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6.RP.2 Understand the concept of a unit rate a/b associated with a ratio a:b with b is not equal to 0, and use rate language in the context of a ratio relationship. (For example, "This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar." We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger.")
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6.RP.3 * Use ratio and rate reasoning to solve real-world and mathematical problems, e.g. by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
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a. Make tables of equivalent ratios relating quantities with whole-number measurements, find missing values in the tables, and plot the pairs of values on the coordinate plane. Use tables to compare ratios.
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b. Solve unit rate problems including those involving unit pricing and constant speed. (For example, if it took 7 hours to mow 4 lawns, then at that rate, how many lawns could be mowed in 35 hours? At what rate were lawns being mowed?)
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c*. Find percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times that quantity); solve problems involving find the whole, given a part and the percent.
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d. Use ratio reasoning to convert measurement units; manipulate and transform units appropriately when multiplying or dividing quantities.
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Apply and extend previous understandings of multiplication and division to divide fractions by fractions.
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6.NS.1 * Interpret and compute quotients of fractions, and solve word problems involving division of fractions by fractions, e.g., by using visual fraction models and equations to represent the problem. [For example, create a story context for (2/3) ÷ (3/4) and a use visual fraction model to show the quotient; use the relationship between multiplication and division to explain that (2/3) ÷ (3/4) = 8/9 because 3/4 of 8/9 is 2/3. (In general, (a/b) ÷ (c/d) = ad/bc); "How much chocolate will each person get if 3 people share 1/2 lb. of chocolate equally?" "How many 3/4-cup servings are in 2/3 of a cup of yogurt?" "How wide is a rectangular strip of land with length 3/4 mile and area 1/2 square mile?"]
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Compute fluently with multi-digit numbers and find common factors and multiples.
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6.NS.2 Fluently divide multi-digit numbers using the standard algorithm.
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6.NS.3 * Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.
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