3rd Grade: Unit 4 (Digital Edition)Standards:3.3F Represent equivalent fractions with denominators of 2, 3, 4, 6, and 8 using a variety of objects and pictorial models, including number lines. 3.3G Explain that two fractions are by the same point on a number line or represent the same portion of a same size whole for an area model. 3.3H Compare two fractions having the same numerator or denominator in problems by reasoning about their sizes and justifying the conclusion using symbols, words, obj