March 21, 2016
By Nekeisha Hall

Lesson plan

The Smaller They Come

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Do you need extra help for EL students? Try the Exploring Metric Units of LengthPre-lesson.
EL Adjustments
GradeSubjectView aligned standards
Do you need extra help for EL students? Try the Exploring Metric Units of LengthPre-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.
EL adjustments
(10 minutes)
  • Watch Measuring to the nearest cm and mmBy 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 practise.
(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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