CCSS Number and Operations (NF)



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Academic Vocabulary: Fraction Numerator, Denominator, Unit Fraction, equal parts, make whole *Denominator in 3rd grade 2, 3, 4, 6, 8Focus on-Specifying the whole-Expanding what is meant by “equal parts”Show the fraction ? by folding the piece of paper into equal parts.Make picture and describe the shaded & not shaded part: name the fraction, Cuisenaire fractions, fraction barrier game, exploring fraction kits, equal parts on the geoboard, geoboard fourths, congruent eighths, fractions with color tiles, find one half of a group, fraction postersMath Read Aloud Task Card: Picture PieFractions with Pattern Blocks BooksFraction CirclesFraction BarsLinking Color CubesRelated CA Standard NS3.2Math Practices:1, 4, 7Standard: 3.NF.2 Cluster (m)______________________________________________________________________________________Understand a fraction as a number on the number line; represent fractions on a number line diagram.___________ A. Represent a fraction 1/b?on a number line diagram by defining the interval from 0 to 1 as the whole and______ partitioning it into?b?equal parts. Recognize that each part has size 1/b?and that the endpoint of the part based at 0 locates the number 1/b?on the number line.____________________________________________________ B. Represent a fraction?a/b?on a number line diagram by marking off a lengths 1/b?from 0. Recognize that the____ resulting interval has size?a/b?and that its endpoint locates the number?a/b?on the number line._______________ Essential Skills/ConceptsTeaching Notes/StrategiesResourcesUnderstand that, in addition to whole numbers, number lines can show equal parts of a whole or fraction.Understand that fractions are numbers on a number line.Understand how to use number lines to count and identify fractional parts.Academic Vocabulary: Number Line Fraction Numerator Denominator Represent fractions on a number line that are less than, equal to, or greater than one. Place fractions on a number line. Divide a number line between 0 and 1 into equal parts.1 whole1 whole1 whole1 wholel______ l______ l______l______l0 1 2 3 4 Interactive Post It Activity Putting Numbers on WhiteboardsFloor Number Line : fraction strips, make your own fraction strips, number line roll, fraction number lineBlank Number LineRelated CA Standard NS3.1Math Practices: 1, 2, 3, 4, 6, 7, 8 Standard: 3.NF.3 Cluster (m)Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size._________ A. Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number_____ line._________________________________________________________________________________B. Recognize and generate simple equivalent fractions, e.g., 1/2 = 2/4, 4/6 = 2/3. Explain why the fractions are__ equivalent, e.g., by using a visual fraction model.__________________________________________________ C. Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers.?Examples:__ Express 3 in the form 3 = 3/1; recognize that 6/1 = 6; locate 4/4 and 1 at the same point of a number line_______ diagram._______________________________________________________________________________D. Compare two fractions with the same numerator or the same denominator by reasoning about their size.______ Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of__ comparisons with the___ symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model._____ Essential Skills/ConceptsTeaching Notes/StrategiesResourcesUnderstand that two fractions are equivalent if they are the same size, cover the same area, or are on the same point on a number line. Recognize and generate simple equivalent fractions using fraction models and number lines. Explain why two fractions are equivalent by using a fraction model or number line. Academic Vocabulary: Equivalent Fractions Use number lines to find and generate equivalent fractions.Use fraction models / Fraction Bars to compare equivalent fractions.Matching GameStudent ExplanationsNumber TalksDraw Pictures Non-example: ? a cookie is same as ? a pizza (for teacher): Pizza for dinner, build a hexagon, exploring equivalent fractions, creating equivalent fractions, Cuisenaire equivalent fractionsFractions with Pattern Blocks by Mattew E. ZullieThe Hershey Fraction Book by Jerry Pallotta ................
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