Stack them together to get a measurement. The short activity has pupils work in pairs to measure the lengths of two blocks and then determine the length of the two blocks together. The groups then determine an equation that represents their sum and total length.

Concepts

length, measurement, non-standard measurement, addition, numbers to 20

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Additional Tags

math

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Instructional Ideas

• Ask the class how they would determine the length all the way around the block

Classroom Considerations

• Each pair needs to have UNIFIX cubes and two blocks to measure
• Learners should know how to measure with the UNIFIX cubes and add within 20

Pros

• Provides commentary on how the activity fits with the sequence of standards
• Includes a suggestion for extension

Cons

• Links on teacher pages do not work

Common Core

1.OA.A.1 1.MD.A.2