Use customary units. Which unit is best for the length of a crayon?
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LENGTH JOBcrayonCUSTOMARY UNIT
Inspect the object, then choose the best unit.
Learn the math: Choose Appropriate Length Units
A useful measurement unit fits both the object's scale and the requested measurement system. Small and large units describe the same kind of quantity at different scales.
A worked example
A pencil is conveniently measured in centimeters or inches, while a long road distance is better described in kilometers than centimeters.
Keep in mind while you play
Check whether the question asks for metric or customary units before choosing.
About Unit Choice Workshop
A free Grade 2 math game for practicing choose appropriate length units. No account or download is needed.
Learning area: Measuring · Choosing Length Units.
Difficulty: 2 · Practice within Grade 2. Apply a skill with more choices, larger numbers or extra steps.
Read whether the workshop uses customary or metric units. Inspect the object's scale, then power the matching unit station (inches, feet, yards, centimeters, meters, or kilometers).
Choose an activity that fits your learner. Grade labels are a guide; adults can help with the instructions.