This year our district implemented the use of exit slips to assess student daily learning. So, what are exit slips? Quite simply, exit slips are used to help students reflect on their learning and express their ideas and learning about a topic. The Exit Slip strategy also provides the teacher with the opportunity to integrate writing into the classroom.
[The black hole] teaches us that space can be crumpled like a piece of paper into an infinitesimal dot, that time can be extinguished like a blown-out flame, and that the laws of physics that we regard as 'sacred,' as immutable, are anything but. ~~~ John Wheeler