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Argonne Child Development Center
9700 S. Cass Avenue
Argonne, IL 60439
Phone: 630-252-9601
childcare@anl.gov

Classroom Information & Ratios

Infant A
Age: 6 weeks - 18 months
Ratio : 1:4
Group Size: 8

Infant B
Age: 6 weeks - 18 months
Ratio : 1:4
Group Size: 8

Toddlers
Age: 15 months - 2 years old
Ratio : 1:5
Group Size: 10

Two Year Olds
Age: 2 years old - 3 years old
Ratio : 1:6
Group Size: 12

Younger Preschool
Age: 3 years old - 4 years old
Ratio : 1:10
Group Size: 20

Older Preschool
Age: 4 years old - 5 years old
Ratio : 1:10
Group Size: 20

Prekindergarten
Age: 4.5 years old to 5.5 years old
Ratio : 1:12
Group Size: 12

Discovery Days - School Holiday Program
Age: 6 years old - 12years old
Ratio : 1:15
Group Size: 30

Discovery Day Camp
Age: 6 years old - 12years old
Ratio : 1:15
Group Size: 30

Other Information
Age: *please note all ages are approximate
Ratio : *ratios in Young Preschool & Prek may change due to the ages of children enrolled to be higher or lower but comply with DCFS regulations
Group Size:



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