Each summer First School offers a part-time program which serves infant/toddlers, preschoolers, and also includes elementary age children through 5th grade.
Summer Program hours:
Mon/Wed  or   Tues/Thurs
8:00 a.m. to 12:00 p.m. AND/OR    8:00 a.m. to 2:30 p.m.
Session 1      June 9 – July1     *VacationBibileSchool June 21-25
Session 2      July 5 – July 22
Session 3      [...]

Probably  not geared toward kids, but if you have an older child interested in archeology . . .
Artifact Identification
In honor of March as Arkansas Archeology Month, the Shiloh Museum in Springdale will host an artifact identification program Saturday, March 6, at noon. Archeologists from the Arkansas Archeological Survey will be on hand to answer questions [...]

From the Fayetteville School District:
Kindergarten registration for the 2010-11 school year will begin at all Fayetteville School District elementary schools on Thursday, April 1 from 8 am until 6 pm.
To register your child for kindergarten in the 2010-11 school year, your child must be 5 years of age on or before August 15, 2010. The [...]

Thursday

Enjoy First Thursday Fayetteville on the Square
New art exhibit openings and receptions hosted by ddp gallery and The Fayetteville Underground will be from 5 p.m. to 8 p.m., Thursday, February 4, 2010. Additional activities include I.M. Spa hosting an art reception for Angela Peach Photography, and Sound Warehouse will be hosting “The Flatland Travelers” [...]