Resources for Problem Solving/Critical Thinking Skills
Inside Mathematics  Problems of the Month
Download problems organized by grade levels and standards. Each problem includes differentiation materials to meet student needs. These problems are meant to help prepare students to be successful in making sense of problems and building the stamina to solve them. 
Inside Mathematics  Performance Task Examples

Teacher Resources
National Library of Virtual Manipulatives
The National Library of Virtual Manipulatives (NLVM) is an NSF supported project that began in 1999 to develop a library of uniquely interactive, webbased virtual manipulatives or concept tutorials, mostly in the form of Java applets, for mathematics instruction (K12 emphasis).
Illuminations: Resources for Teaching Math
Illuminations is put out by NCTM and it is designed to provide Standardsbased resources that improve the teaching and learning of mathematics for all students.
Math Dictionary for Kids
This dictionary was created by an Australian primary teacher. Gives kid friendly explanations & practice for over 600 math concepts and terms.
Math Drills Number Sense
Has links to many different math tools that could be used for different math activities or progress monitors.
eManipulatives
Links to interactive online manipulatives in the ares of counters, coins and bills, connecting cubes, number line and hundred chart.
K5 Math Teaching Resources
This site provides an extensive collection of free resources, math games, and handson math activities aligned with the Common Core State Standards for Mathematics.
Math Antics

Math Story Problem Types
Printable color chart that gives clear examples for the different types of story problems, ie. joining, separating, comparing, etc.
Buzz Math
This online tool includes over 3,000 problems aligned to CCSS. You can search the site by math topic. Allows educators to set up a free basic account for up to 45 students.
This online tool includes over 3,000 problems aligned to CCSS. You can search the site by math topic. Allows educators to set up a free basic account for up to 45 students.
Math Fact Cafe
Build your own math progress use premade worksheets. Includes areas such as basic facts, word problems, and time and money.
Math Fact Help
Premade progress monitors/practice sheets based on different computational strategies, such as doubles and doubles plus one.
Math Splat
Splat is an interactive number sense strategy that can be used at any grade level. Students are shown representations of numbers. With a splat, part of the representation is hidden and students are asked how many are still shown and asked to reason through how many are hidden. Includes both the original Whole Numbers splat set and a New Fraction Splat!
Splat is an interactive number sense strategy that can be used at any grade level. Students are shown representations of numbers. With a splat, part of the representation is hidden and students are asked how many are still shown and asked to reason through how many are hidden. Includes both the original Whole Numbers splat set and a New Fraction Splat!