Core Knowledge® Foundation

Coreknowledge.org has 4 URLs listed in 3 Dmoz categories.

Core Knowledge: Pre-K
Units and lesson plans available in .pdf format.
http://www.coreknowledge.org/CKproto2/resrcs/lessons/Prek.htm
Top/Reference/Education/Early_Childhood/Subjects

Core Knowledge: Kindergarten
Large collection of units and lesson plans available in .pdf format.
http://www.coreknowledge.org/CKproto2/resrcs/lessons/K.htm
Top/Reference/Education/Early_Childhood/Subjects

Core Knowledge Foundation
Promotes a solid, sequenced, specific and shared curriculum.
http://coreknowledge.org/
Top/Reference/Education/K_through_12/Curriculum

Core Knowledge Lesson Plans and Units
A collection of high quality collection of preschool through 8th grade units and lesson plans
http://www.coreknowledge.org/CKproto2/resrcs/index.htm
Top/Reference/Education/K_through_12/Educators/Lesson_Plans