Math Mammoth Grade 1-A Worktext, International Version (Canada) : Math Mammoth : 9781954358157 : 1954358156 : 08 Apr 2022 : Math Mammoth Grade 1-A worktext (Canadian version) is the student book for the first half of grade 1 mathematics. It covers addition within 0-10, subtraction within 0-10, and place value with two-digit numbers. The worktext contains both the necessary instruction and the problems & exercises, and is fairly self-teaching. Please note this is a student worktext and does not contain answers. Features of the curriculum: Math Mammoth focuses on conceptual understanding. It explains the "WHY", so your children can understand the math, not just learn "HOW" to do it.Concepts are often explained with visual models, followed by exercises using those models. These visual models can take the place of manipulatives for many children; however, it is very easy to add corresponding manipulatives to the lessons if so desired.The curriculum is mastery-oriented. This means it