Details on Developmental Frameworks that "address" "individual differences"

Developmental Frameworks

Piaget

4 "Stages" Piaget talks about stages rather than Individual differences

Sensory-Motor

Pre-operational 

Concrete Operational

Formal Operational

Source:  ANY text on development                 

Vygotsky

http://wanttolearn.edublogs.org/?s=Vygotsky&submit=Go

Bjorklund and Sternberg (Development Texts)

http://wanttolearn.edublogs.org/?s=

Theories+of+Development&submit=Go

CASEL

http://frantoomeytalk.blogspot.com/2018/09/so-many-sel-resources-would-one-of.html