Grade: 2-3
Subject: Math
Standards of Measurement:
Third-graders are exploring their world and are beginning to formulate their thoughts about school and education based on their experiences. To create a positive experience at school and help students retain information, instructors must offer opportunities to apply lesson plans to tangible examples and allow children to experience the lesson with real-life application. This lesson is all about engaging students in this manner.
By the end of this lesson, students will have met several requirements set by the National Council of Teachers of Mathematics, including measuring length. Ultimately, students can take and record accurate measurements at the end of this lesson using a set unit.
Ask: "Do you know how to take measurements?" (Allow a few minutes to discuss the concept of measuring to gauge students' understanding of the terminology. Explain any terms that need explaining, including units and the use of each tool.)
Say: "Today, we are going to learn all about measuring. We have learned much about math; I know you all know how to count and read numbers. Now, we'll use all that knowledge to determine different objects' sizes."
Say: "Let's start by seeing how long our arms are. Maybe we can measure everything with our arms!" (Here, students will use their rulers to see how long their arms are. Walk around to observe and help students understand where to look to read measurements. Have every student write down the approximate length of one arm in inches.)
Say: "Did everybody get the same measurement? How long is your arm?" (Ask a few students to share their answers; answers will vary.)
Say: "So, an arm's length isn't a standard unit of measurement, huh? I guess we can't measure using our arms. That's why we need something called a unit. We can measure things using different units, like inches and centimeters. These are two different ways to measure length. We're going to practice now, but with Lego!
(Bring out the box of Lego bricks. Depending on what is available, you might put a few pieces on each table or in the middle of the floor to divide materials among students. Now, students will start the activity either in groups or independently.)
Note:
Once students are done measuring items, you can conduct a class discussion to compare measurements. If any items have varying results you can remeasure the item as a class. For example, one student measured a desk at 13 Lego bricks while another measured the desk at 17 Lego bricks. Measure as a class to determine the correct height.
To drive home the point, assign a measurement worksheet as homework, but instead of Lego bricks, students will measure using any available "unit" they have. Such as a shoe, pencil, wooden blocks, etc.
Written by Melanie Barrozo
Education World Contributor
Copyright© 2022 Education World