Problem Solving Ideas
https://achievethecore.org/category/416/mathematics-tasks
https://sites.google.com/a/sjcisd.org/common-core-mathematics-assessment-field-testing-site/
http://www.sfusdmath.org/sources-for-math-problems-and-activities.html
https://www.mictm.org/index.php/resources/rich-math-tasks
https://www.insidemathematics.org/problems-of-the-month/download-problems-of-the-month
http://www.sfusdmath.org/sources-for-math-problems-and-activities.html
Problem Solving by Grade Level
Kindergarten Splash Math
Grade 1 http://www.rpmullen.com/job/july_23_2012/problem_solver/problem_solver_1.pdf
Grade 2 http://www.rpmullen.com/job/july_23_2012/problem_solver/problem_solver_2.pdf
Grade 3 http://www.rpmullen.com/job/july_23_2012/problem_solver/problem_solver_3.pdf
Graded 4 http://www.rpmullen.com/job/july_23_2012/problem_solver/problem_solver_4.pdf
Number Talk Handouts
Videos