Harcourt Multimedia Math Glossary
http://www.harcourtschool.com/glossary/math2/index_temp.html
A glossary that includes definitions and examples for common and uncommon math words. Click on your grade level to begin.

Activities for Your Day
http://www.illuminations.nctm.org/swr/review.asp?SWR=1919#
This site, sponsored by the US Department of Education, recommends many math activities that parents can utilize no matter how busy their days are.

Bobbie Bear
http://Illuminations.nctm.org/mathlets/bobbie_bear/index.html
Bobbie Bear is planning a vacation and wants to know how many outfits can be made using different colored shirts and pants.

Bar Charts
http://nlvm.usu.edu/en/nav/frames_asid_190_g_1_t_1.html?open=activities
Create a bar chart showing quantities by labeling columns and clicking on values.

Can You Balance
http://teams.lacoe.edu/documentation/classrooms/linda/algebra/activities/balance/balance.html
This online activity helps students to practice and develop number sense and their understanding of equations.

Base 10 Blocks
http://nlvm.usu.edu/en/nav/frames_asid_152_g_1_t_1.html
Students can illustrate addition and subtraction in a variety of bases.

Hungry Frog
http://www.hungryfrog.com/java/javamath1.htm
Hungry Frog is a game to practice basic arithmetic skills.

Line Jumper
http://www.funbrain.com/linejump/index.html
Play a game to practice using a number line to solve addition problems.

Number Line Arithmetic
http://nlvm.usu.edu/en/nav/frames_asid_156_g_1_t_1.html?open=activities
Illustrates arithmetic operations using a number line.

Fractions - Naming
http://nlvm.usu.edu/en/nav/frames_asid_104_g_1_t_1.html
Name the fraction shown by the shape.

Fractions Parts of a Whole
http://nlvm.usu.edu/en/nav/frames_asid_102_g_1_t_1.html
Relates parts of a whole unit to written description and fraction.

Varnelle's Introduction to Fractions
http://Illuminations.nctm.org/swr/review.asp?SWR=2184
This Web-based unit gives children an introduction to fractions by incorporating interactive and manipulative-based projects with paper/pencil practice, and online activities.

Geoboard
http://nlvm.usu.edu/en/nav/frames_asid_277_g_1_t_3.html?open=activities
Use geoboard to illustrate area, perimeter, and rational number concepts.

Mirror Tool
http://Illuminations.nctm.org/mathlets/mirror/index.html
Investigate symmetry. Mirrors can be used to create reflection symmetry.

Patch Tool
http://Illuminations.nctm.org/mathlets/patchtool/index.html
This patch is used over and over again to produce a larger pattern. Create your own patch using the shapes.

Shape Tool
http://Illuminations.nctm.org/mathlets/shapetool/index.html
This tool allows you to change different shapes in several ways. You can draw, color, paste, slice, rotate, reflect, expand, and contract.

Tangram
http://nlvm.usu.edu/en/nav/frames_asid_268_g_1_t_3.html?open=activities
Use all seven Chinese puzzle pieces to make shapes and solve problems.

Tangram Puzzles
http://standards.nctm.org/document/eexamples/chap4/4.4/index.htm
Develop spatial skills through puzzlelike problems with tangrams.