Kindergarten Mathematics Module 3, Topic F

children in science class

Topic F opens with students shifting from comparison of lengths to comparison of number. As students build their confidence by directly comparing the lengths of a pencil and a crayon, they are increasing their readiness in later grades to indirectly compare using length units. “The pencil is longer than the crayon because 7 cubes is more than 4 cubes.” In Lesson 20, students relate more and less to length: “A stick of 7 cubes is longer than a stick of 3 cubes; 7 is more than 3. A stick of 3 cubes is shorter than a stick of 7 cubes; 3 is less than 7.” In Lesson 21, students take two sticks, break them into cubes, and compare the sets. “Which set has more objects? This set has more than that set.” Lessons 22 through 24 have students making and identifying sets that have the same number of objects, sets that have 1 more object, and sets that have 1 fewer object.

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Common Core Learning Standards

CCLS State Standard
K.CC.6 Identify whether the number of objects in one group is greater than, less than, or equal to the...
K.CC.7 Compare two numbers between 1 and 10 presented as written numerals.

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