SET OF 2 INCLUDES: -- The Education Center's The Mailbox Science Made Simple for Preschool & Kindergarten. Published 1997. 159 pages. -- Scholastic Best of Dr. Jean Science & Math. Elementary school grades pre-k- k. Published 2005. 48 pages. Both in VERY GOOD used condition (all pages are clean and unused, has very minor cover wear and yellowing)
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