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Understand how to use a ruler to measure length to the nearest inch.

  1. Recognize that the ruler is a tool that can be used to measure the attribute of length.
  2. Understand the importance of the zero point and end point and that the length measure is the span between two points.
  3. Recognize that the units marked on a ruler have equal length intervals and fit together with no gaps or overlaps. These equal interval distances can be counted to determine the overall length of an object.
Standard #: MAFS.1.MD.1.aArchived Standard
Standard Information
General Information
Subject Area: Mathematics
Grade: 1
Domain-Subdomain: Measurement and Data
Cluster: Level 2: Basic Application of Skills & Concepts
Cluster: Measure lengths indirectly and by iterating length units. (Major Cluster) -

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.
Date Adopted or Revised: 02/14
Content Complexity Rating: Level 2: Basic Application of Skills & Concepts - More Information
Date of Last Rating: 08/14
Status: State Board Approved - Archived
Related Courses
Related Resources
Formative Assessments
Lesson Plans
  • Inch by Inch # In this lesson students will be able to recognize the ruler as a tool to measure length and understand the use of the beginning and end points when measuring the length of an object. Students will need to measure Bubble Tape gum so that everyone is able to have a piece.
  • Measuring with Inches # In this engaging introductory lesson to measuring length with a ruler, students will learn that a ruler is a tool to measure length in the standard unit of inches. Students will be moving around the room to measure the length of classroom objects with an inch ruler.
Problem-Solving Tasks
  • Measure Me! # The purpose of this task is for students to measure something that interests them (namely themselves) by laying multiple copies of a shorter object that represents the length unit end to end. This task provides students an opportunity to discuss the need to be careful when measuring as it is very likely that some of them will get incorrect comparisons of their leg length with their partner's leg length.
  • How Long # The purpose of this task is to help students learn how to take measurements.
Teaching Idea
MFAS Formative Assessments
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