Rich tasks to problem solve

http://map.mathshell.org/materials/index.php
http://www.mathematicsvisionproject.org/secondary-mathematics-i.html
https://www.engageny.org/
http://www.ccsstoolbox.org/
http://mathcounts.org/resources/oplet/oplet-database
http://www.illustrativemathematics.org/illustrations

http://graphingstories.com/

Problem-Based Lessons

• http://robertkaplinsky.com/
• 101qs.com
• Andrew Stadel
• Dan Meyer
• Mathalicious
• Problem Based Curriculum Maps
• Problem-Based Lesson Search Engine
• Yummy Math

• Andrew Stadel
• Avery Pickford
• Dan Meyer
• Fawn Nguyen
• Geoff Krall
• Ian Byrd

• Common Core State Standards
• Daily Desmos
• Desmos
• Estimation 180
• Graphing Stories
• Math Mistakes
• Open Middle
• Problem Solving Framework v7.1
• Questioning Scenarios
• Visual Patterns

For some math problem websites:
http://www.figurethis.org/challenges/math_index.htm
http://mathlearnnc.sharpschool.com/cms/One.aspx?portalId=4507283&pageId=5856325
http://mathlearnnc.sharpschool.com/cms/One.aspx?portalId=4507283&pageId=5856332
http://nrich.maths.org/primary-upper
https://mathcounts.org  (for middle school)

For APPS for MATH

Math Stars

Superstars

Problem Solving Deck