What is minimal frequency for mindfulness programs?


Hi there,
I’m interesting in doing an after school program for early elementary students at my son’s school, using the Mindful Schools curriculum. I’ve previously only worked with teenagers, and that was a once per week group.

I’m wondering if once per week would be adequate for early elementary students, or if you believe that a higher frequency would be needed? (I’m only available to teach this once a week.) Any insights would be much appreciated!