Website
Primary Resources

Primary Resources: Decimals

For Teachers 4th - 6th Standards
A large collection of teacher resources dealing with decimals at many different levels. There are worksheets, PowerPoints, smartboard presentations, Excel, Word, and pdf files for the teacher's use.
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.
Unit Plan
Mangahigh

Mangahigh: Number: Order Decimals

For Students 3rd - 8th Standards
Students learn about the concept of ordering decimals by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.
Interactive
Math Slice

Math Slice: Ordering Game

For Students 2nd - 8th
Sequencing skills are the focus of this interactive game. You must be able to put fractions, decimals, whole numbers, and negative numbers in correct order to win and make the train move down the tracks. Immediate feedback given to...
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Lesson Tutor

Lesson Tutor: Comparing Decimals

For Students 4th - 6th Standards
This site is an online lesson plan and practice problems for students learning how to compare two decimal values are provided here. A detailed explanation of both the methods and the practice questions are provided for easy understanding.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 5.nbt Placing Thousandths on the Number Line

For Teachers 5th Standards
This task asks students to order decimal numbers to the thousandths on a number line between 0 and 0.1. Aligns with 5.NBT.A.3.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 5.nbt Comparing Decimals on the Number Line

For Teachers 5th Standards
This task presents four pairs of decimal numbers and asks students to compare them and place them on number lines. Aligns with 5.NBT.A.3.
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!
Unit Plan
Math Is Fun

Math Is Fun: Comparing, Ordering Decimals

For Students 3rd - 8th Standards
This website gives a simple, easy strategy for how to compare decimals when they have a different number of decimal places. It provides examples in ascending and descending order and an ordering game for practice.