EMBARC.Online

http://www.fun4thebrain.com/

Lost of simple online math games for TK - 5.

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/

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.

• 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

Students are given a "Would you rather" type question and then they are expected to use math to justify whichever answer they choose.

http://www.wouldyourathermath.com/

Awesome tasks inspire, educate and empower students to solve very interesting math problems. "Low floor-High ceiling" problems that all students can do!

https://www.youcubed.org/tasks/

Zearn: dynamic digital lessons to learn and love math.

Matches Eureka Math (grades 2, 3, and 4 only) almost exactly. This is essentially an interactive online version of the lessons int he teacher edition. Teachers and students love this site!

https://www.zearn.org/

Click here for ideas on how to structure your math time.

A great article from Teaching Children Mathematics on achieving fact fluency in a humane way WITHOUT a bunch of timed tests. It is all about giving your students DAILY opportunities to discuss mathematics.

This is a great article to get teachers thinking reflectively on fact fluency, how they thing of it, and how best to achieve it with our students. Please read this!

https://drive.google.com/file/d/0Bze4eU0rInwwaW10NDRoOElWclk/view?usp=sharing

This technique can be used at any grade level with any of the four operations. Easy-to-make fact fluency cards using 3x5 index cards and Avery labels.

http://www.k-5mathteachingresources.com/computational-fluency.html

Students must first conceptually understand the fact strategies (doubles, doubles plus one, combinations of ten, etc) BEFORE focusing on fluency and speed. Once the strategies are firmly in place, students can then begin to focus on fluency and speed. 

https://drive.google.com/open?id=0B2Xj1ul5LBQHbDBReHIyMDRXSTA

Students practice their fact fluency for addition, subtraction, multiplication, and division using this online webtool.

http://www.factmonster.com/math/flashcards.html

1. Eliminate timed tests
2. Provide students with a choice for assessing understanding
3. Let students invent their initial understanding of the mathematics
4. Teach multiple solution methods
5. Encourage lots of student collaboration

https://theothermath.com/index.php/2017/08/18/5-steps-to-eliminate-math-anxiety/

A thought provoking idea: Using games to build conceptual understanding and mathematical fluency.

https://embarc.online/mod/page/view.php?id=9321

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

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

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/

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.