[aikitaiso]

Hi all! I'm Michael and I'm new here. I am currently an ALT in Japan. I hope to make some new friends and meet fellow teachers here. I have a question I hope you can help me out with.
Here's a challenge:
The teachers here have a hard time explaining the future tense verb "will". Does anyone know where I can find tense charts with arrows and opened/closed circles?
More importantly, my English teacher was wondering if there was an activity for this verb tense the students (Junior High level) can do?
Anyone out there taught this to your students? What did you do as an activity to help them understand?
Thank you all for your time and help in this matter!