Padlet is a great place to put all your links to assignments and activities. I organize my units on Padlet. On the left is a picture of my Transformations Unit Padlet.

This screencast will help you get started on Padlet. Just recently they added a comment feature , so you can add comments to posts.

After a lesson on Rotations, my students wrote a reflection about what they learned. Click on the Padlet picture ( on the left) to read their reflections.