Khan Academy
Khan Academy: Estimating Length (Mm, Cm, M, Km)
Practice estimating the length of real life objects using metric units. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math Is Fun
Math Is Fun: Measuring Metrically With Maggie
Metric units for volume, mass, length and temperature are explained to a cute little alien called Maggie. There are lots of real life examples for comparison that younger children will understand.
National Council of Teachers of Mathematics
The Math Forum: Measurement: Metric Conversions
This lesson plan has a game to help pupils convert to various linear metric units and learn their abbreviations.
Math2
Math2.org: Weights and Measures
This resource provides information on weights and measures, including unit conversion tables.
TeachEngineering
Teach Engineering: Robot Wheels!
Students solidify their understanding of the terms "circumference" and "rotation" through the use of LEGO MINDSTORMS NXT robotics components. They measure the circumference of robot wheels to determine how far the robot can travel during...
Fun Brain
Fun Brain: Measure It! (Measuring Lengths Game)
Practice using metric rulers and rulers with inches. Includes helpful feedback when questions are answered incorrectly.
Other
World Wide Metric Calculator
Do you need a quick conversion from metric units to imperial units or just the reverse? Use this resource for conversions of length, weight, pressure, and volume.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Metric Olympic Games (Intermediate)
This activity can be used to introduce the metric system to students.
The Math League
The Math League: Metric Units and Measurement
This metric system tutorial is compared to the U.S. standard system so that students can comprehend the measurement of length, volume, mass and the like.
Other
Pbs Mathline: It Takes Ten (Pdf) [Pdf]
A metric measurement lesson plan using grams, milliliters, and centimeters. This lesson offers a variety of "hands on" measurement activities using both the customary and metric systems. Additionally, this lesson plan offers extensions,...
Utah Education Network
Uen: Design Your Own Bedroom
Many young scholars dream of designing their ideal bedroom. In this exercise, students will be required to limit their designs by size (as a specific volume) and price (a specific amount). They must design the floor plan, including...
PBS
Pbs Teachers: Dead Men's Tales: Inferring Height From Bone Length
Explore the work of forensic scientists by inferring an individual's height from the length of certain long bones. Create bone/height relation charts and measure length using metric units. This activity was created to be used with the...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Metrics in the Home and in the Store
In this lesson plan site, students will compare SI unit (metric) measurements of common household items and their English equivalents.
The Math League
The Math League: Decimals in Measurement
This site gives information on the metric system, as well as abbreviations for metric conversion.
Other
Ask Numbers: Measurement Conversion Calculators and Charts
What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of...
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
CK-12 Foundation
Ck 12: Elem Math: Meters (Grade 4)
[Free Registration/Login may be required to access all resource tools.] This learning module features three videos and a set of practice questions in which students measure and/or compare lengths of objects measured in meters.
SRI International
Performance Assessment Links in Science: Tree Study (Lesson)
For this fourth grade performance task, students measure tree leaves using metric units and make predictions about the length of other leaves on the tree. They also suggest other good questions they might ask about trees in the school...
ClassFlow
Class Flow: Converting Metric Measurement
[Free Registration/Login Required] Students will know: Customary and Linear Measurement Vocabulary, How to use the conversion table for customary and metric units of length to convert units of measurement, How to add and subtract units...
Middle School Science
Middle School science.com: Smile Metric Style Lesson
In this lesson plan site, learners will learn how to use a metric ruler to measure length, accurately read and record measurements taken in centimeters and millimeters, and collect and analyze data using a stem and leaf.
PBS
Pbs Mathline: Sand Babies (Pdf) [Pdf]
In this engaging lesson, students use a variety of measurement strategies in creating their own Sand Babies. Students explore standard and non-standard measurements, area, data collection and analysis, and graphing. Adaptations are...
That Quiz
That Quiz: Practice Test: Conversion
This resource allows users to test their conversion skills.
CK-12 Foundation
Ck 12: Elem Math: Converting Kilometers to Meters With Decimals
[Free Registration/Login may be required to access all resource tools.] For this learning module, students work with decimals as they convert kilometers into meters. Includes video demonstrating a sample problem [0:43] and a set of...
CK-12 Foundation
Ck 12: Elem Math: Converting Centimeters to Millimeters With Decimals
[Free Registration/Login may be required to access all resource tools.] For this learning module, students work with decimals as they convert centimeters into millimeters. Includes video demonstrating a sample problem [0:34] and a set of...