variation of traits

Per­fect Pairs: Using Fic­tion and Non­fic­tion Books to Teach Life Sci­ence, K‑2
Melis­sa Stew­art and Nan­cy Ches­ley
Sten­house Books, 2014 Authen­tic sci­ence always begins with a ques­tion, with a fleet­ing thought, with a curi­ous per­son. That curi­ous per­son has an idea, won­ders if it is valid, and then tries to find out. Because won­der­ing is at the heart of dis­cov­ery, each Per­fect Pairs les­son starts with a Won­der State­ment that we’ve care­ful­ly craft­ed to address one Next Gen­er­a­tion Sci­ence Stan­dards Per­for­mance Expec­ta­tion.… more