I withdrew my children from MISD but want to re-enroll them. How do I do that? 

If any of your children were once enrolled at MISD but then withdrawn, your Skyward Family Access account still exists but is inactive. To reactivate your account, go to Skyward Family Access and select 'Enrollment Access' from the dropdown menu (see graphic below):
Skyward 'Enrollment Access' from drop down menu
You must re-enroll returning students. You may also enroll any new students you might have. To do either, once logged into Skyward, click on the 'New Student Online Enrollment' tab located on the upper left.