H.W.
you said San Mateo area...I don't know if Redwood City is to far away for you. Our preschool is Redwood Parents Nursery School. We have classes for toddlers (13mo and walking to 36mo) thru Pre-K (4 yr old). I have a son in toddlers and my daughter is in Pre-K. I am also on the board. Our school is a co-op and the community is amazing. I attended this school as a child and love it dearly. We do charge a tuition fee. we have a wonderful website too. It will give you all the dates and amounts per class. As far as a free preschools go you can try family connections. They have a wonderful program too.