I love to use routines to jump start my math lessons in all grades PK-5. I find that they are a great way to spiral back to topics as well as to reactivate prior knowledge before students explore new concepts.
A couple of years ago I watched a Dan Meyer video were he talked about getting kids interested in math by building a little suspense. One suggestion he had was to give students a graph that was missing some information and then slowly bring back the information BEFORE giving them a question (or even better yet, letting kids come up with their own questions)! As soon as I heard him talk about this idea, I was intrigued!
The routine is structured around a google slide show. Basically you open up a google slide and the question are already on the screen to help guide you through this 10-15 minute routine.
Here is a screen cast I made to explain how the routine works:
If you are curious and intrigued then try out some Reveal a Graph routines!
Let me know if you have any questions or feedback!