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Math 5

Addition/Subtraction and Properties

Properties of Multiplication and Addition
Properties of Addition
Practice Identifying Properties at the bottom of the page
Properties of Multiplication
Practice Identifying the Properties in the activity at the bottom of the page.
Decimal Addition
Practice adding numbers with one decimal digit
Decimal Addition
Practice adding numbers with 3 decimal digits
Circle 0
Can you make all circles add up to zero?
add/subtract integers game

Multiplication and Division

Multiplication in Mr. Martini's Classroom
Practice Multiplication online!
Russian Peasant Multiplication
See how its done and look at the interesting explanation about why it works!
Decimal Division Worksheets
Choose your level then do the problems. You can check your answers online.

Fractions

Geometry

Corresponding Angles
Check the middle of the page where you can click on a type of angle relationship and see it light up on the diagram!
Triangles
Everything you need to know about classifying triangles!
A demonstration of the Pythagorean Theorem
This site uses shockwave! Click and drag parts of the smaller squared sides to cover the larger squared side completely.
translations
Reflections
Rotations
Counting Faces, Edges, Vertices
Tessellation Activity
Types of Polygons
Test your knowledge of polygons and try to beat the clock!

Measurement Concepts

Graphing and Statistics

Computer Programming

Scientific Notation

Scientific Notation
How to convert both large and small numbers to scientific notation.
Practice scientific notation!

Algebra Concepts

Number Theory

The First Thousand Primes
This site goes on when your Sieve of Eratosthenes runs out!
Prime Factorization Tool
Check your work with this tool!
Prime Factorization: What is it?
This page describes some of the methods used to factor a composite number into primes.
Dr. Math's Divisibility Rules
All the divisibility rules we learned in class and a few more!
Testing Large Numbers for Divisibility
Try the test at the bottom of the page.
Greatest Common Factor
Try the practice at the bottom of the page!
Finding Greatest Common Factor
Review how to find GCF with prime factorization.
Least Common Multiple
Try the Practice at the bottom of the page!

Problem Solving

Math Olympiads for Elementary Schools
Try the sample problems and the Problem of the Month!
Problem Solving Strategies
from the Singapore Math Teacher site
Thinking Blocks
Problem Solving with Model Drawing Online

Pi Day

Place Value Concepts

Math 4

Rounding Numbers
Great "Glog" made by Mrs. Banks!
Multiplying and the Distributive Property
Extra Practice with "Breaking Up" Numbers to multiply mentally!
Practice Multiplying Decimals
Intergalactic Multiplication Fact Game
Mrs. Evarts is really bad at this game!
Multiplication in Mr. Martini's Classroom
Practice long multiplication online!
Profile: Dr. Ed Wollack
Dr. Wollack is a scientist from NASA. He comes every year to visit our math class to talk about cool science and math ideas.

Division

Geometry Concepts

Measuring angles with a protractor
Use this site to help you learn to measure angles
Tetris
Yes, parents, this is math related! But have your child explain the concept before allowing him or her to play!
Counting Faces, Edges, and Vertices
Transformations
On this site you can try out the 3 main types of transformations on a coordinate plane.
Pentamino Chess Game
Pentaminoes in a rectangle

probability

Divisibility, Factors, and Primes

Vector Kids Divisibility
This site is great to practice checking your divisibility rules!
About Math.com Divisibility
Lists all the rules for divisibility we learned in class.
Dr. Math: What is a prime number?
Sieve of Eratosthenes
Interactive Sieve that you can try online!