CK-12 Foundation
Ck 12: Elem Math: Representing Numbers in Expanded Form Ii
[Free Registration/Login may be required to access all resource tools.] The video shows up to the thousands place and describes how to recognize the place value of a digit in a number. The video is followed by a series of practice...
E-learning for Kids
E Learning for Kids: Math: Eiffel Tower: Roman Numerals and Angles
Students will play learning games to explore expanded notation and angles such as identifying, measuring, and estimating. They will also convert Roman numerals into numbers.
PBS
Pbs: Scientific Notation
This animated Math Shorts video from UEN explains the term scientific notation and provides several examples in converting extreme numbers to and from scientific notation. It also demonstrates how to multiply numbers using scientific...
National Council of Teachers of Mathematics
The Math Forum: Famous Problems in the History of Mathematics
On this site, there are several math problems to explore and solve. Look through some solutions by famous mathematicians and expand your thinking about some interesting math concepts. Teachers of elementary grades may want to use this...
Better Lesson
Better Lesson: 3 Digit Perimeters
Second graders work with 3-digit numbers as they solidify their understanding of the difference between perimeter and area.
Saddleback College
Algebra2go: Digits and Place Value: Part 2 Problem Sets
Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the questions, ask Charlie how you did.
Better Lesson
Better Lesson: Commutative and Associative Properties
Students will learn about the commutative and associative properties. This detailed lesson plan includes smartboard slides and downloadable worksheets.
Quia
Quia: Place Value Playoff! Flash Cards
Do you need practice learning how to write the expanded form of numbers written in standard form? This flash card practice is the web site for you! There is a link to a list of the numbers being used so you can check your answer.
Quia
Quia: Place Value Playoff! Word Search
Do you need practice learning how to write the expanded form of numbers written in standard form? This word search game is the web site for you! There is a link to a list of the numbers being used so you can check your answer.
Calculator Soup
Calculator Soup: Number and Word to Standard Notation Calculator
Convert number and word combinations into numbers only. This calculator converts a number word phrase such as 2.75 million into its numerical equivalent. The number word phrase 2.75 million converts to numbers in standard notation as...
CK-12 Foundation
Ck 12: Analysis: Properties of Logarithms
[Free Registration/Login may be required to access all resource tools.] In this lesson students use properties of logarithms to rewrite and expand/condense. Students examine guided notes, review guided practice, watch instructional...
North Atlantic Treaty Organization
Nato: Nato's Role in Afghanistan
NATO took command of the International Security Assistance Force, ISAF, in 2003. It's mission was originally limited to Kabul, but has expanded its role to the whole of Afghanistan. Its main objective is to assist the Afghan government...
Smithsonian Institution
National Museum of American History: 24 Hour Society: Neon Signs
More and more people are awake after midnight or before dawn. Some are working, perhaps keeping the graveyard shift or doing business with foreign markets. Some are playing-increasing numbers of entertainments never close. Some are doing...
History Tools
History Tools: Thomas Jefferson's Indian Policy [Pdf]
Primary source material on the message from Thomas Jefferson secretly delivered to Congress on his strategy to acquire Native American land and expand the western frontier. Paragraph numbers have been added.
CK-12 Foundation
Ck 12: Algebra Ii: 1.9 Sum and Difference of Cubes
This section expands on the process of factoring to certain types of polynomials. In particular, it investigates how to find the sum and difference of cubed numbers and terms, and it will use volume of cubes to model this process.
PBS
Pbs: Equivalent Expressions With the Distributive Property
This animated Math Shorts video explains how the distributive property can help students model and create equivalent expressions. In the accompanying classroom activity, students play a quick game where they identify common factors...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Power of Ten
This website from The Math Page explains and defines basic arithmetic terms and place value concepts. There is even a practice section at the very end of the lesson.
Doina Popovici
Math Play: 4th Grade Halloween Math Game
This game will test students understanding of standard numbers in expanded forms. Students destroy the monsters by answering the questions about numbers in expanded, standard, or word form.