Understand that the last number name said tells the number of objects counted. The number of objects is the same [...]

Understand that each successive number name refers to a quantity that is one larger.

Count to answer “how many?” questions about as many as 20 things arranged in a line, a rectangular array, or [...]

Identify whether the number of objects in one group is greater than, less than, or equal to the number of [...]

Compare two numbers between 1 and 10 presented as written numerals.

Represent addition and subtraction with objects, fingers, mental images, drawings (drawings need not show details, but should show the mathematics [...]

Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent [...]

Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or [...]

For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., [...]

Fluently add and subtract within 5.

Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or [...]

Describe measurable attributes of objects, such as length or weight. Describe several measurable attributes of a single object.

Directly compare two objects with a measurable attribute in common, to see which object has “more of”/“less of” the attribute, [...]

Classify objects into given categories; count the numbers of objects in each category and sort the categories by count. (Limit [...]

Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such [...]

Correctly name shapes regardless of their orientations or overall size.

Count to 100 by ones and by tens.