The product is a book titled "Thinking Mathematically" aimed at K-12 students and educators in the subject area of Mathematics. Published by K12 in October 2020, this first edition book proposes 14 teaching practices to build thinking classrooms in mathematics. With a compact size of 7 x 0.78 x 10 inches and weighing 1.55 pounds, the book offers a valuable resource for improving mathematics education in schools. The book is in English and provides insights and practical strategies for enhancing mathematical thinking skills among students.