EMBARC.Online

https://ggbm.at/NPDu3rCm

GeoGebra is a wonderful tool. Create your own interactive applet or use one of the thousands that have already been made.

Made with Google slides. Students can collaboratively work in the same slide.

 https://docs.google.com/presentation/d/1P8RqQi7VCIqJO_Ssia8khcOp5sb-KXeVTa2uUV670_A/copy

Resources arranged under the Standards for Mathematical Content. Great math problems to use with your students.

https://www.illustrativemathematics.org/content-standards

These Problems of the Month are organized  by grade level and main topic for that level. These grade‐level expectations are just estimates and should not be used as an absolute minimum expectation or maximum limitation for students. The structure of a Problem of the Month is a low floor and a high ceiling, so that all students can productively engage, struggle, and persevere.

http://www.insidemathematics.org/problems-of-the-month/download-problems-of-the-month

This site provides several engaging sample lessons for each standard at each grade level from K to 5.

http://www.k-5mathteachingresources.com/

Math Collective

The Math Collective is a group of K-8 teachers and math coaches who hope to spread progressive math education to all the students of New York City. They are a collective: their materials and professional development workshops are developed among their members and always shared.

http://www.mathcollective.org/

Math Fact Cafe is a website that generates free math worksheets. This includes math fact worksheets, flashcards, counting, time, and money problems.

https://www.mathfactcafe.com/home/

https://www.mathlearningcenter.org/apps

http://www.mathplayground.com/

This website has it all: number games, flash cards, virtual math manipulatives, The best part of this site are...

• Thinking Blocks: learn how to solve problems using the Singapore bar model. 
• Common Core Math: activities specifically aligned to the CCSS.

https://mathigon.org/polypad

 An incredibly versatile virtual manipulative that is easy to use. 

https://mathsbot.com/#Manipulatives

https://www.matific.com

Matific takes a unique approach to teaching K to 6 math using hands-on and interactive mini-games, called episodes. These immersive bite-sized apps for tablets and personal computers are based on a modular and progressive spiral learning system.

Think of this as The Global Math Department for education. It is a community of math teachers on the Internet. They communicate via Twitter and blogs so they use the nickname Math Twitter Blogosphere (MTBoS). First and foremost it’s a support group for teachers in year 0 to 50 (preservice to retired!). Amazing resource for teachers who want to learn math as well as teach it.

https://exploremtbos.wordpress.com/
http://mathtwitterblogosphere.weebly.com/

https://docs.google.com/document/d/1kZyeck-Ophk_Tq1494zRmW7bt7XYe4bRtlPQWTWV3OI/edit?usp=sharing

This is a description of four different ways to multiply two numbers. Each of the four methods can be used for whole numbers, fractions, decimals, and algebraic expressions. These methods are much more powerful than the "traditional" algorithm.

Use this Blendspace as a fun way to 

https://moodle.pleasantonusd.net/mod/page/view.php?id=17672

• Enrich the experience of the mathematics curriculum for all learners
• Offer challenging and engaging activities
• Develop mathematical thinking and problem-solving skills
• Show rich mathematics in meaningful contexts

Challenging math problems worth solving! 

"Open middle” problems have these characteristics:

• they have a “closed beginning” meaning that they all start with the same initial problem.
• they have a “closed end” meaning that they all end with the same answer.
• they have an “open middle” meaning that there are multiple ways to approach and ultimately solve the problem.

http://www.openmiddle.com

https://www.polyup.com/

A free and open computational thinking playground. Modify expressions, functions, and algorithms to discover the beauty of math. Awesome for grades 1 through 12.

https://www.prodigygame.com/

An engaging and adaptive way for students to practice mathematics in Grades 1 through 8. Has some great reporting tools. Completely free.

Thinking Blocks is an interactive tool that helps students model math word problems. Ideal for Grades 1 through 6. Students learn how to create TAPE DIAGRAMS to solve word problems. This resource is a must for every teacher.

Link to the site: http://www.mathplayground.com/thinkingblocks.html

Addition and Subtraction (Grades 1 and 2)

Addition and Subtraction (Grades 2 and 3)

Multiplication and Division (Grades 3 - 5)

Fractions (Grades 4 and 5)

Ratios and Proportions (Grades 6 and 7)

 Generic modeling tool