Website
National Council of Teachers of Mathematics

The Math Forum: The History of Zero and Place Value

For Students 9th - 10th
This ask Dr. Math question about the history of zero and place value. Includes a very in-depth answer explaining where zero came from and how it was originally used as a place holder.
Activity
University of Regina (Canada)

University of Regina: Math Central: Place Value Activities

For Students K - 1st Standards
These hands-on activities help students in grades K-3 understand place value.
Activity
Khan Academy

Khan Academy: Division Using Place Value

For Students 3rd - 5th Standards
In this activity, the concept of using place value to solve division problems is introduced. Students can then practice this skill, receive immediate feedback, and get hints as they try questions repeatedly.
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Math Aids

Math Aids: Place Value Worksheets

For Teachers K - 1st
Great resource to practice and strengthen math skills pertaining to place value. Math worksheets are printable, may be customized, and include answer keys.
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Ice Cream Shop: Roman Numerals

For Students 4th - 6th Standards
On this interactive website students practice various math skills using a real life scenario at an ice cream shop. Those skills include identifying and converting Roman Numerals, identifying place value in a number, and sorting numbers...
Interactive
Doina Popovici

Math Play: Place Value Millionaire Game

For Students 5th - 7th Standards
This is an online Millionaire-style game for students to practice reading and writing decimals.
Unit Plan
PBS

Pbs: Rounding to the Tenths Place

For Students 3rd - 5th
Only numbers with tenths can get in to the number line party, what's a decimal with hundredths to do? This interactive exercise focuses on using what you know about number lines and rounding to the tenths place and then asks you to think...
Website
AAA Math

Aaa Math: Aaa Math Lessons

For Teachers 3rd - 8th
AAA Math's interactive tutorials and lessons assist students grades K-8 improve their understanding of a wide range of arithmetic topics. Students are provided with immediate feedback as they complete the "Learn," "Practice," and "Play"...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.ns Multiplication, Division and Place Value, Part 1

For Teachers 6th Standards
Sixth graders are presented with a completed multiplication equation and are asked to use it to find the answers to seven other equations. To do this, they must use their reasoning and estimation skills. Aligns with 6.NS.B.3.
Lesson Plan
Better Lesson

Better Lesson: Is the Statement True or False?

For Teachers 2nd Standards
Second graders use their knowledge of place value to determine whether a comparison statement is true or false.
Interactive
Study Pad

Splash Learn: Add Decimals Using Models

For Students 5th
[Free Registration/Login Required] This fun decimal addition worksheet introduces students to the world of operations with decimal numbers. Fifth graders use models to visualize the addition of numbers in the tenths and hundredths places...
Interactive
Arcademics

Arcademics: Tandem Turtles

For Students 3rd - 5th
Multiplayer math game where turtle teams on skateboards race by rounding whole numbers to the nearest 10's place value.
Interactive
Arcademics

Arcademics: Space Jaunt

For Students 3rd - 5th Standards
Multiplayer math game where alien spaceships race by rounding whole numbers to the nearest 10's place value.
Lesson Plan
Better Lesson

Better Lesson: Comparing Temperatures

For Teachers 2nd
Second graders should be able to recognize what makes one number greater or smaller than another, using place value understanding which is crucial to Common Core mastery. This lesson combines math and science by having students order...
Lesson Plan
Better Lesson

Better Lesson: Writing and Solving Number Stories

For Teachers 2nd Standards
We can apply math to almost every part of the day and make math have a purpose for students.
Lesson Plan
Better Lesson

Better Lesson: Larger Numbers: A Tie to Social Studies

For Teachers 2nd Standards
I want my students to realize that numbers are everywhere and math is applicable to almost all other subjects. Geography offers a perfect opportunity for students to make this connection.
Lesson Plan
Better Lesson

Better Lesson: Let's Review

For Teachers 2nd Standards
Revisit, Revisit, Revisit! Students need repeated exposure to math concepts to really understand how they work.
Lesson Plan
Better Lesson

Better Lesson: Using a Pattern to Solve a Problem

For Teachers 2nd Standards
Patterns are prevalent in all levels of math. Common Core Standards expect students to be able to use structure - like that found in repeating the patterns of odd and even numbers or counting by 5s or 10s - to solve problems (MP7).
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Roll & Build

For Teachers 1st - 2nd Standards
The purpose of this task is to give students practice representing two-digit numbers with concrete objects to reinforce the meaning of the tens digit and the ones digit. Directions and materials needed are included in the lesson.
Lesson Plan
Better Lesson

Better Lesson: Comparing and Ordering Integers

For Teachers 5th - 6th
Students will compare and order integers on the number line. This lesson includes a detailed plan with lots of examples, a screencast of the lesson, and slides containing notes and problems.
Lesson Plan
Better Lesson

Better Lesson: Patterns in Larger Numbers

For Teachers 2nd Standards
Patterns are everywhere. We can use patterns to help us deal with larger numbers
Lesson Plan
Better Lesson

Better Lesson: Larger Number Patterns

For Teachers 2nd Standards
Second graders can find patterns in 4-digit numbers that will help them when counting over decades and centuries.
Lesson Plan
Better Lesson

Better Lesson: Patterns in Nature

For Teachers 2nd Standards
Are there patterns in nature that can be described by numbers? That is what we will find out here.
Lesson Plan
Better Lesson

Better Lesson: Subtracting With Partners of 100

For Teachers 2nd Standards
When subtracting ten from a 2 digit number, 2nd graders should be able to compute the answer as fluently and comfortably as do when they add ten to a 2 digit number.