Before You Begin this Unit…  Unit at a Glance  
This unit Measuring and Counting builds on the work in Counting and Comparing. Students should have developed their sense of numbers and quantities, to count and compare amounts, and to measure objects by comparing them directly. Knowing how to line up units with the object being measured and whether the strategy used to line them up makes a difference or not, are important skills from the Counting and Comparing unit needed to be successful in this unit. 
Suggested Dates: Estimated Duration:
*Investigation 1: 8 lessons (include 1.6a, 1.6b, 1.6c)
*Investigation 2: 5 lessons
*Investigation 3: 7 lessons
*Investigation 4: 9 lessons 

Standards Addressed in the Unit  
Link to CCSS Unpacking Document updated June 2015 K At a glance document K.CC.3 Write numbers from 0 to 20. Represent a number of objects with a written numeral 020 (with 0 representing a count of no objects).
K.CC.4 Understand the relationship between numbers and quantities; connect counting to cardinality. K.OA.1 Represent addition and subtraction with objects, fingers, mental images, drawings^{1}, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
K.OA.2 Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem. Check out this video:
K.OA.3 Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).
K.OA.4 For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
K.MD.1 Describe measurable attributes of objects, such as length or weight. Describe several measurable attributes of a single object. K.MD.2 Directly compare two objects with a measurable attribute in common, to see which object has “more of”/“less of” the attribute, and describe the difference. For example, directly compare the heights of two children and describe one child as taller/shorter. 