Mangahigh
Mangahigh: Number: Use Inverses
Explore addition and subtraction and how they are related.
Mangahigh
Mangahigh: Number: Find Remainders After Division
Test your knowledge of division including remainders.
Mangahigh
Mangahigh: Number: Relate Addition to Multiplication
Explore commutative, associative, and distributive properties for multiplication and addition and how they are related.
Mangahigh
Mangahigh: Number: Check Calculations
Test your knowledge with calculations including adding, subtracting, multiplication, and division.
Mangahigh
Mangahigh: Number: Calculator Problems Decimals
Test your knowledge of adding, subtracting, multiplying, and dividing decimals.
Other
Multiplication: An Adventure in Number Sense
This explanation for learning your multiplication tables is interactive and fun. There are only about 13 facts that students may want to memorize.
Queen's Printer for Ontario
E workshop.on.ca: Effective Instruction in Math, 4 6: Big Ideas [Pdf]
Volume 1 in an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for explaining five big ideas of number sense and numeration to students in grades 4 through 6: quantity, operational...
Texas Instruments
Texas Instruments: Estimation Games
Students use the calculator to compute products of numbers and to find answers to division problems. The activity is designed to help students develop number sense with the operations of multiplication and division.
University of Cambridge
University of Cambridge: Nrich: Magic Squares
In a Magic Square all the rows, columns and diagonals add to the same number. This number is called the Magic Constant. Learn math fundamentals visually and have fun at the same time.
Quia
Quia: Add Your Way to a Million (Rags to Riches)
You can earn a million bucks playing this addition game. A succinct multiple choice game with hints, if you need them. Contains simple computation problems mixed with a few word problems. Must be able to add up to the millions place (one...
ABCya
Ab Cya: Addition With Manipulatives
An interactive addition game that includes movable manipulatives. An engaging tool for building skills with one and two digit addition facts. Immediate feedback given.
Better Lesson
Better Lesson: Towers, Towers, Towers 1 5
Children develop a true sense of number by working with real things. In this lesson, kindergarteners use blocks to build towers, learning what numbers 1-5 mean.
Better Lesson
Better Lesson: Towers, Towers, Towers 6 10
This lesson is the sequel to Towers! Towers! Towers! 1-5. Students continue to develop their sense of quantity as they build successive taller towers.
National Council of Teachers of Mathematics
The Math Forum: Beat the Calculator: Adding Even Numbers
Can you beat the calculator? Your task is to find the sum of all even numbers between two and any selected two-digit even number. If you can find the number pattern, you are sure to beat the calculator every time. Links to other "Beat...
AAA Math
Aaa Math: Counting Even Numbers by Twos
Use this lesson to learn about adding two and skip counting to understanding the concepts of counting even numbers by twos. Play the interactive game "Counting Up By Twos," and get your score instantly.
Texas Instruments
Texas Instruments: Smile Mathematics App
This App contains five games that reinforce skills from the number and operations, geometry, and measurement standards. These games help students build skills in ordering numbers, choosing equivalent fractions, estimating and drawing...
Better Lesson
Better Lesson: How Are They Different?
SWBAT order a set of numbers and quantities up to 12 and compare two quantities up to 10 to see which one is greater. The students will also demonstrate their knowledge of how the numbers in the counting sequence are related (that each...
Other
Maths Zone
A huge collection of math online games for all ages. Access different types of math such as: use and apply, count and understand, addition and subtraction number facts, multiplication and division number facts, shapes, measuring, and...
Better Lesson
Better Lesson: Writing Equations for Arrays
Second graders will learn how to make number sentences for an array by walking around the classroom and writing number sentences for the different arrays the teacher hangs around the room. A video is included, along with examples of...
Better Lesson
Better Lesson: Understanding Tape Diagrams
Using a tape diagram is one of the key models for ratios and proportions.
Better Lesson
Better Lesson: Assessment Day
SWBAT use strategies to identify rational numbers on a number line.
Better Lesson
Better Lesson: What Is Today?
SWBAT identify the name of the month, number of the day, and number of the year on a calendar. SWBAT explore math tools, and will demonstrate their ability to count 20 objects.
Better Lesson
Better Lesson: Spatial Patterns for Numbers 10 Through 15
SWBAT use a ten frame to build and identify the numbers 10 through 15.