Teacher Page

Title:  An Introduction to The International System of Units (SI)

Subject Area’s:  Math, Science

Grade:  9th

Length:  2 Days

Introduction Scenario:   With the exception of the United States, the metric system is the used in everyday life.  Although there are many base units that make up the system, this lesson is designed to explore just the base unit of: Length

Task Statement:  To build research skills and expand knowledge of the international system of Units with a brief history lesson, then an in-depth look at the base unit of length

Process:  The student will first read about the origins of the metric system.  Then the student will get a brief introduction to base units within the international system of Units (SI).  Then the student will take an in-depth look at length and the meter.  The student will have the concepts reinforced by practice and by writing a short report.

Prerequisites:  The unit of length in the US system should be previously introduced.

Standards addressed: 

Colorado Standards:



1. Students develop number sense and use numbers and number relationships in problem-solving situations and communicate the reasoning used in solving these problems.



  1. Students read and understand a variety of materials.
  2. Students write and speak for a variety of purposes and audiences.
  3. Students write and speak using conventional grammar, usage, sentence structure, punctuation, capitalization, and spelling.


NETS for Teachers

1. Facilitate and Inspire Student Learning and Creativity

Teachers use their knowledge of subject matter, teaching and learning, and technology to facilitate experiences that advance student learning, creativity, and innovation in both face-to-face and virtual environments.

H-I.  This webquest is designed to give the student a basic understanding of SI and the base unit of length.  More web quests can be designed for the six remaining base units. 



Russ Rowlett and the University of North Carolina at Chapel Hill