Chapter 9:

Comparing Sets

Students will know and understand:

Students Will:

count forward from a number other then.
count and match objects that are less than and greater than.
use one to one correspondence when counting objects.
represent addition and subtraction in a variety of ways (ex. fingers, manipulatives, drawings).

Formative Test: Common

Upon completion of Unit 9:

K.CC.A.1. Count to 100 by ones and by tens.
K.CC.A.2. Count forward beginning from a given number within the known sequence (instead of having to begin at 1).
K.CC.A.3. Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects).
K.CC.B.4a. When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only one object.
K.CC.C.6. Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group, e.g., by using matching and counting strategies.
K.OA.A.1. Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
K.OA.A.2. Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.

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