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    • ▾Kindergarten
      • ▸Counting and place value
        • •Counting from pictures, oral response
        • •Counting objects by property
        • •Counting to 100 by ones
        • •Counting to 100 by tens
        • •Counting on by ones or tens
        • •Understanding zero
        • •Write numbers
        • •Counting objects, line or rectangular array
        • •Counting objects, scattered and circular arrangements
        • •Compare by matching or counting
        • •Compare written numerals
        • •Counting by category
        • •Count, represent and write teen numbers
      • ▸Addition and subtraction
        • •Add and subtract within 5
        • •Composing and decomposing within 10
        • •Addition, missing number word problems
        • •Addition and subtraction, concrete and visual
        • •Add and subtract within 10
      • ▾Measurement and geometry
        • •Compare measurements without tools
        • •Measurement tools
        • •Naming shapes in the real-world
        • •Naming shapes regardless of orientation or size
        • •Relative positions
        • •Identify shapes and solids
        • •Compare attributes of shapes and solids
        • •Build solids
        • •Compose 2D shapes
        • •Simple repeating patterns
        • •Growing patterns
     › Kindergarten › Measurement and geometry

    Compare measurements without tools

    Compare taller and shorter. Compare longer and shorter. Compare heavier and lighter. Compare hotter and colder. In later years we’ll use tools to measure such things.

    Taller and Shorter by TenMarks Amazon

    Do these Khan Academy exercises:

    • Compare size
    • Compare length

    Conclude by giving your students this challenge:

    Whose Face? by NRICH

    K.MD.A.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.

    Additional lessons and practice problems