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# The Smaller They Come

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Do you need extra help for EL students? Try the Exploring Metric Units of Length pre-lesson.

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Do you need extra help for EL students? Try the Exploring Metric Units of Length pre-lesson.

Students will be able to use metric units of length.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
(10 minutes)
• Watch Measuring to the nearest cm and mm by 2minutemath
• After watching the video, ask your students what they can measure in real life.
(15 minutes)
• Give your students rulers, and ask them to see what units of length they see.
• Review how to measure an object with a ruler by starting at the zero mark and measuring straight across.
• Acknowledge that some objects aren't exact, so decimals or fractions are necessary to record an exact measurement.
• Demonstrate on the whiteboard how to measure 3.4 centimeters. Draw several lines for practice.
(15 minutes)
• Demonstrate to students that 3.4 centimeters can also be written as 34 millimeters.
• Instruct your students to measure lines of different sizes and write them the two ways that they just learned.
(15 minutes)
• Give your students the Length in Centimeters worksheet to complete.

Enrichment: Have your students complete the Measuring Length in Centimeters worksheet.

Support: Before working on decimals, have your students master the concept of measuring to a whole number. Throughout this activity, have them round up or down to the nearest whole number instead of using decimals or fractions.

(5 minutes)
• Circulate and provide support where needed.
• Make sure that your students are using their rulers from the correct side.
• Collect student work as a formative assessment to check for understanding.
(5 minutes)
• Ask students to complete a think-pair-share, responding to one of the following sentence stems:
• One of the units of length we learned about today was ____.
• My favorite part of the lesson was ____.
• I feel ____ (good/okay/confused) about using a ruler because ____.

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