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Due to an influx of orders, you may experience delayed processing times up to 10 business days. You will receive tracking information once your order has shipped.

We thank you for your patience and understanding.

Dear Valued Customers:

Core Knowledge Foundation will be moving warehouse locations later this Fall, during which our warehouse will be closed and unable to ship orders.

ALL orders placed between

Friday, September 30^th 2022 – November 13^th, 2022
will not be processed or shipped until the week of November 14^th, 2022.
Orders will be processed and shipped in the order they are received.

If you have any questions or concerns please contact us at
[email protected]

We thank you for your patience and understanding.

Frequent customer? Consider creating an account to speed up your checkout process. Please call us at (800) 238-3233 or use our customer support form for help to complete your order.

Showing all 12 results

CKSci Grade K Complete Grade-Level Set

Changing Environments: CKSci Homeschool Set

Needs of Plants and Animals: CKSci Homeschool Set

Our Five Senses: CKSci Homeschool Set

Pushes and Pulls: CKSci Homeschool Set

Weather Patterns: CKSci Homeschool Set

CKSci Grade 4 Complete Grade-Level Set

Human Respiration and Circulation: CKSci Homeschool Set

Investigating Waves: CKSci Homeschool Set

Processes that Shape Earth: CKSci Homeschool Set

Structures and Functions of Leaving Things: CKSci Homeschool Set

Using Natural Resources for Energy: CKSci Homeschool Set

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