The Preschool Playbook works for the same age range, some 2.5-year-olds may also enjoy it. I suggest you manage your expectations on their independence levels. Even your older kids might also love doing the activities while they are on school breaks.

Sure thing. I have a copy of the Transportation unit from The Preschool Playbook as a free sample. You can download it here.

Open the template PDF in Adobe reader in Ready mode—not Edit mode which is password protected. On the Introduction page, you should see the word "name" or "Lucy". Highlight "name" or "Lucy" and type your child's name. Your child's name will then be automatically inserted into the book and you’ll be ready to print.

Yes, of course. I know some families have more than one child doing the activities, and it makes sense to get multiple copies of the printables and fine motor journals of The Co-Op Box (or the templates and writing journals, if you bought The Preschool Playbook). Feel free to make more copies for everyone in your home if you want to.