Khan Academy
Khan Academy: Measuring Lengths With Different Units
In this lesson, students units use different units to measure the same object.
University of Cambridge
University of Cambridge: Nrich: Game Do You Measure Up?
This interactive game gives you a variety of measuring tools and measuring opportunity. For this game of chance you choose the correct tool for the job that needs to be measured. Everything you need for this game is listed and/or...
Math Slice
Math Slice: Length Slice Special Test
A ten question test for assessing measurement concept for length. Assessment is scored online and students get immediate feedback. A great assessment tool.
Homeschool Math
Homeschool Math: Measuring in Inches
Lesson and exercises teach students about measuring in inches, using the 1/16 parts of an inch.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: 2nd Grade Measurement & Data: Measuring Paths [Pdf]
K-5 Math Teaching Resources: 2nd Grade Measurement and Data: Measuring Paths students will use different measuring materials different scenarios.
National Council of Teachers of Mathematics
The Math Forum: Lesson Plan Non Standard Measuring
This is a short, fun lesson plan with a literature connection, "Miss Nelson is Missing". It uses candy bars as non-standard units for measuring objects in the classroom.
University of Georgia
University of Georgia: Arcs, Central Angles, Arc Length & Sector Area
This site provides practice problems for calculating central angles and calculating arc length.
Ducksters
Ducksters: Kids Math: Units of Measurement Glossary and Terms
Math glossary and terms on units of measurement for kids. Learn the definitions used in this mathematics subject such as time, temperature, length, and distance.
Jim Loy
Jl's Math Page: The Golden Rectangle and the Golden Ratio
This is a personal site from Jim Loy that describes the golden rectangle and the golden ratio. Includes several diagrams and pictures as well as formulas. A good background in math is helpful.