Measurement: Length

End-to-End Length Measurer

Sub Trajectory: Measurement

Lays units end to end. May not recognize the need for equal-length units or be able to measure if there are fewer units than needed. The ability to apply resulting measures to comparison situations develops later in this level. May use rulers with substantial guidance. (This level develops in parallel with "Serial Orderer to 5 (Length)").

Activities

You may see this:

Other Examples:

Lays nine one-inch cubes in a line beside a book to measure how long it is.
Measures the length of a strip with 2 x 4 linking blocks, ensuring that the connected blocks align with the end endpoint and do not have any gaps in between them.

Help your student become a(n) End-to-End Length Measurer

Activities challenge children to fill lengths from endpoint to endpoint without gaps or overlaps to measure accurately. Children often are not worried about accuracy as we might, so the best activities are self-checking (e.g., if you measure correctly, you "find the one that fits perfectly"). Having a mixed-up puppet make mistakes and asking the children to help him can be fun and generate good discussion and solid concepts.