I can count forward beginning from a given number within the known sequence (instead of having to begin at 1).
I can write numbers from 0 to 20.
I can represent a number of objects with a written numeral 0–20 (with 0 representing a count of no objects).
Count to determine the number of objects.
I can apply the relationship between numbers and quantities and connect counting to cardinality.
I can count to answer "how many?" questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1–20, count out that many objects.
Compare numbers.
I can 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. (Include groups with up to 10 objects.)
I can compare two numbers between 1 and 10 presented as written numerals.
Algebra and Functions
Operations & Algebraic Thinking
I can represent addition and subtraction with objects, fingers, mental images, drawings (drawings need not show details, but should show the mathematics in the problem), sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
I can solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.
I can 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).
For any number from 1 to 9, I can 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.
I can fluently add and subtract within 5.
Data, Statistics, and Probability
Measurement & Data
I can describe measurable attributes of objects, such as length or weight. I can describe several measurable attributes of a single object.
I can 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).
I can classify objects into given categories; count the numbers of objects in each category and sort the categories by count. (Limit category counts to be less than or equal to 10.)
Geometry
Identify and describe shapes
I can describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to.
I can correctly name shapes regardless of their orientations or overall size.
I can identify shapes as two-dimensional (lying in a plane, "flat") or three-dimensional ("solid").
Analyze, compare, create, and compose shapes
I can analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/"corners") and other attributes (e.g., having sides of equal length).
I can model shapes in the world by building shapes from components (e.g., sticks and clay balls) and drawing shapes.
I can compose simple shapes to form larger shapes.
