What is Size?

Size refers to the measurement or dimensions of an object. It is the physical extent, magnitude, or quantity of an object or space.

Understanding Size

In kindergarten math, children learn about size through comparison and measurement. They begin to understand the concept of big and small, large and little, tall and short, and wide and narrow.

Comparing Sizes

Children practice comparing sizes by arranging objects from smallest to largest or largest to smallest. They learn to identify which object is bigger or smaller than another.

Measuring Size

Kindergarteners also start to explore measurement by using non-standard units such as blocks, cubes, or their hands to measure the size of objects. They learn to understand concepts like longer, shorter, taller, and shorter through hands-on activities and visual comparisons.

Practicing Size Concepts

Activities such as sorting objects by size, comparing the heights of classmates, and identifying big and small items in the classroom help children develop their understanding of size.

Real-Life Application

Understanding size is essential for daily activities such as choosing the right clothing size, organizing items by size, and understanding spatial relationships in the environment.

◂Math Worksheets and Study Guides Kindergarten. Comparing, and ordering

The resources above cover the following skills:

Counting and Cardinality

Know number names and the count sequence.

Count to 100 by ones and by tens. [K-CC1]

Count forward beginning from a given number within the known sequence (instead of having to begin at 1). [K-CC2]

Count to tell the number of objects.

Understand the relationship between numbers and quantities; connect counting to cardinality. [K-CC4]

Understand that each successive number name refers to a quantity that is one larger. [K-CC4c]

Compare numbers.

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 ten objects.) [K-CC6]

Operations and Algebraic Thinking

Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.

Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations. (Drawings need not show details, but should show the mathematics in the problem. This applies wherever drawings are mentioned in the Standards.) [K-OA1]

Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem. [K-OA2]

Fluently add and subtract within 5. [K-OA5]

What is Size?

Understanding Size

Comparing Sizes

Measuring Size

Practicing Size Concepts

Real-Life Application

[Size] Related Worksheets and Study Guides:

◂Math Worksheets and Study Guides Kindergarten. Comparing, and ordering

The resources above cover the following skills: