- Awesome Library--Math
Select lesson plans by grade, topic, or standards, includes arithmetic. From the website: "Awesome Library organizes the Web with 37,000 carefully reviewed resources, including the top 5 percent in education."
- The Gateway to 21st Century Skills
The Gateway is DOWN due to the loss of our funding source; however, they are actively seeking a new one.
From the websites: "The Gateway contains a variety of educational resource types from activities and lesson plans to online projects to assessment items."
Type mathematics or arithmetic in the "Find" box.
- InterActivate Lessons
This website presents interactive Java-based lesson plans for number and operations, geometry, algebra, probability, statistics, modeling and discrete for grades 3-12.
- Math Archivees
Provides links to other mathematics websites for K-12 lesson plans, software, contests and competitions, and more.
From the website: "The following are Internet sites which contain significant collections of materials which can be used in the teaching of mathematics at the K-12 level.
We have organized these materials into the following categories: Lesson Plans, Software, Topics in Mathematics, Contests and Competitions, Professional Societies, Other."
Aimed at grades K-12, the website claims, "We offer mathematics in an enjoyable and easy-to-learn manner, because we believe that mathematics is fun."
Find numbers, algebra, geometry, data, measure, as well as puzzles, games, dictionary, and worksheets.
- Math Playground
From the website: "Math Playground is a popular learning site filled with math games, logic puzzles, step-by-step instructional videos, math practice, and a variety of problem solving activities."
From the website: "SpaceMath@NASA introduces students to the use of mathematics in today's scientific discoveries. Through press releases and other articles, we explore how many kinds of mathematics skills come together in exploring the universe."
Grade 3 and up. Includes math by space topic, math by NASA, math by CCSS-M, and more
- STEW - STatistics Education Web
From the website: "One of the goals of the American Statistical Association is to improve statistics education at all levels. Through the STatistics Education Web (STEW), the ASA is reaching out to K-12 mathematics and science teachers who teach statistics concepts in their classrooms. STEW is an online resource for peer-reviewed lesson plans for K-12 teachers."
TeAchnology provides free resources for K=12 teachers featuring 46,000+ lesson plans, 10,200 free printable worksheets, rubrics, teaching tips, worksheet makers, web quests, math worksheets, and thousands of other great teacher resources.