YouCubed.org has a bunch of great activities in their two separate weeks of inspirational mathematics activities. The sequence, along with videos, is designed to help students develop positive attitudes towards math and their own abilities.

This week is about inspiring students through open, beautiful and creative math. We have chosen the different tasks so that students see math as a broad, interesting and visual subject that involves deep thinking. Students will learn important growth mindset messages that will help them feel confident, try harder all year, persist with open and difficult problems and embrace mistakes and challenge. All tasks are low floor and high ceiling – they are accessible to all students and they extend to high levels. – YouCubed.org

You may also want to check out the book group on LINCS on Jo Boaler’s book, Mathematical Mindsets, which will begin on April 17, 2017. You also might want to read the CollectEd review of YouCubed.org.