Activity
University of Waterloo (Canada)

Math Frogs: Ordering Decimals

For Students 3rd - 8th Standards
Test your knowledge of decimal amounts. Can you put the decimals in order from the least to the largest? This is a great place to practice!
Interactive
Other

Interactive Learning Sites for Education: Decimals

For Students 4th - 6th
A large collection of links to interactive activities and games on the topic of decimals.
Activity
Texas Instruments

Texas Instruments: Comparing Decimals Wider Isn't Always Larger

For Teachers 6th - 8th
In this activity, students learn to compare and order decimals. They learn to measure decimals by using the Number Line application.
Unit Plan
Scholastic

Scholastic: Study Jams! Math: Fractions: Order Fractions and Decimals

For Students 5th - 6th
After completing a step by step activity to order fractions and decimals then test your knowledge.
Whiteboard
Massachusetts Institute of Technology

Mit: Scratch: Decimals and Fractions on the Number Line

For Students 6th - 8th Standards
The interactive activity has students place decimals and fractions on the correct place on a number line.
Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: The Meaning of Decimals

For Students 3rd - 5th Standards
This website from The Math Page explains and defines decimals.
Handout
The Math League

The Math League: Decimals, Whole Numbers and Exponents

For Students 4th - 8th
This tutorial has definitions and examples of decimals, whole numbers, and exponents. In addition, a variety of topics are covered, such as comparing, multiplying and subtracting.
Lesson Plan
Utah Education Network

Uen: Ordering and Computing With Negative Fractions and Decimals

For Teachers 9th - 10th Standards
This lesson plan allows students to practice comparing and ordering rational numbers on a number line as well as computing with fractions and decimals. It provides an assessment plan and attachments for the lesson's activities.
Website
Other

Mathpower: Math Fundamental Assignments

For Students 9th - 10th Standards
Math variety of concepts, this colorful website is sure to give your students the chance show what they know. Concepts covered include rounding, division with decimals, order of operations, ratio, percent, multiplication, and division of...