This week I have found the best website for helping my students with their number sense and their perseverance. It is called Conceptis Puzzles. This website offers hundreds of puzzles and several puzzle types. The Pic-a-Pix puzzles are my personal favorite. The actual puzzle is called a nonogram. More can be found on this website. They build problem solving skills, number sense, and perseverance. All things I want my students to build on.
Your students can make free accounts and play a new puzzle every single week without paying a dime. I use this website on short days or as a fun activity on block period days between tasks. Students find them fun and some have no idea it is making them better mathematicians.