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Rigor in the K–5 Math and Science Classroom : A Teacher Toolkit, Paperback by Blackburn, Barbara R.; Armstrong, Abbigail, ISBN 0367343193, ISBN-13 9780367343194, Brand New, Free shipping in the US Learn how to incorporate rigorous activities in your math or science classroom and help students reach higher levels of learning. Expert educators Barbara R. Blackburn and Abbigail Armstrong offer a practical framework for understanding rigor and provide specialized examples for elementary math and science teachers.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.