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Critical Thinking Problem Solving (Grade 1) (Mr. Thinker's Pet Shop)
Critical Thinking Problem Solving - Grade 1 - Mr. Thinker's Pet Shop Author:Hayes & Sebastian "This book of 39 thought-provoking reproducible problems and solution slips is a stimulating addition to any classroom curriculum... The Creative Problem-Solving series for grades 1-6 was written by experienced elementary teachers and was widely field tested."