Khan Academy has some great lessons on Growth Mindset for elementary aged children. They have videos, lessons and accompanying activities that include our brain development, explain growth mindset and how to set goals. These may be helpful to students (and adults) who are having some frustration with our current learning and working conditions. Their lessons are engaging and easy to use for parents and teachers.
Their site also covers a huge range of subjects and extends to a number of platforms, including an application and YouTube channel. They even have an entire section on remote learning for parents and teachers called “keep everyone learning“. To be able to access their resources, you need a to create a free account.