AAA Math
Aaa Math: Counting Down With Numbers
Practice counting down from ten with this interactive game.
Khan Academy
Khan Academy: Find 1 More or 1 Less Than a Number
Practice finding one more or one less than a number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Rice University
Rice University: Let's Count!
Let's Count is a website that offers opportunities to count lots of different sets of things. You can also view the same website in Spanish.
Tech Target
What Is: Irrational Number
A counterpart problem in measurement would be to find the length of the diagonal of a square whose side is one unit long; there is no subdivision of the unit length that will divide evenly into the length of the diagonal. It thus became...
Purple Math
Purplemath: "Number" Word Problems
Demonstrates, step-by-step and with illustrations, how to set up and solve 'number' problems.
Purple Math
Purplemath: Number Bases: Introduction & Binary Numbers
The process of converting between different number bases is actually fairly simple, but the thinking behind it can seem a bit confusing at first. And while the topic of different bases may seem somewhat pointless to you, the rise of...
Language Guide
Language Guide: Japanese Vocabulary
Learn basic Japanese vocabulary words -- greetings, clothing, household items, foods, toys, and more -- on this multilingual site. Roll over a image or phrase to hear how it is pronounced and see how it is written (Romanized spelling...
TED Talks
Ted: Ted Ed: Gary Wolf: The Quantified Self
Gary Wolf discusses how we use modern technology, more specifically gadgets and apps, to monitor our health and body. [5:11]
PBS
Pbs Kids: Curious George: Flower Garden
This Curious George game will teach children numbers, counting, and cardinality by using a number line.
Khan Academy
Khan Academy: Pronoun Number
Is the pronoun in this sentence singular or plural? Use context to choose the pronoun that makes the most sense.
Purple Math
Purplemath: Quartiles, Boxes, and Whiskers
Explains how to construct a simple box-and-whisker plot, and demonstrates the steps. Discusses quartiles and medians, shows how to find them, and explains how they relate to box-and-whisker plots.
Georgia State University
Georgia State University: Hyper Physics: Infinite Series
Short site from Georgia State University Department of Physics and Astronomy explaining the infinite exponential series.
Grammar Tips
Grammar Tips: Problematic Word Pairs: Part I
Certain word pairs present problems for many speakers and writers such as amount versus number, continuous versus continually, and so on. This three-part article identifies problematic word pairs and clarifies their proper use.
History is Fun
Jan Brett: Number Tracing Pages 11 20 Pdf
Print out these colorfully illustrated PDF file pages for each of the numbers 11-20. Each card shows the numeral and clever art work that shows the amount for that numeral. Below that is a work area to practice tracing over the numerals...
History is Fun
Jan Brett: Toothpick Number Flags Pdf
Print out these colorfully illustrated PDF file pages of the numerals 1-30. Each page shows three numerals that can be cut out and attached to a toothpick to identify the amount indicated by the numeral on the flag.
Sophia Learning
Sophia: Writing Numbers: Lesson 2
A slideshow on the formatting rules for using numbers in text. It is 2 of 6 in the series titled "Writing Numbers."
ClassFlow
Class Flow: Number Fun Place Value
[Free Registration/Login Required] This flipchart is used to help students understand place value (hundreds, tens. ones). There are multiple examples of place value and opportunities for students to identify and write numbers. There is...
ClassFlow
Class Flow: Number Line Squeeze
[Free Registration/Login Required] This flipchart is set up for students to practice their number recognition by playing Number-Line Squeeze. The students also get to review shape names and use less than and greater than phrases.
ClassFlow
Class Flow: Numeration Colored Bead Stair
[Free Registration/Login Required] This lesson on numeration is created with Montessori materials in mind. It presents a concrete representation of the number values 1-10 in a beautiful sequence.
ClassFlow
Class Flow: Odds and Evens With Dominos
[Free Registration/Login Required] In this flipchart students can sort dominos into three different categories. The page can be cleared to start again by using the reset button. Great center activity
ClassFlow
Class Flow: One More and One Less
[Free Registration/Login Required] In this flipchart students investigate adding and subtracting 1 from a number practicing with the more and less terms. This flipchart can easily be modified to use larger more or less numbers. This is a...
ClassFlow
Class Flow: Penny and Dice Game
[Free Registration/Login Required] This flipchart is a game using the dice tool and pennies to practice addition and counting. Students start out playing with one partner and one die. Later you can increase the partners up to four. This...
ClassFlow
Class Flow: Puzzles & Starters 1234 Puzzle
[Free Registration/Login Required] Using the numbers 1, 2, 3, and 4, students use appropriate order of operations to find as many equations from 1-100 as possible.