Math Mammoth Grade 2-A Worktext, International Version : Math Mammoth : 9781954358812 : 1954358814 : 24 May 2024 : Math Mammoth Grade 2-A Worktext (International Version) is the student worktext for the first half of grade 2, and part of the Math Mammoth Grade 2 complete curriculum. This book, 2-A, covers some revision, even and odd numbers, doubling, reading the clock, addition and subtraction facts within 0 - 18, adding two-digit numbers, geometry and fractions. The rest of the topics for 2nd grade are covered in the student book 2-B. Being a worktext, the book contains both the necessary instruction and the problems and exercises (the 'text' and the 'work'; thus a "worktext"), and is for the most part self-teaching. Some main features of Math Mammoth complete curriculum (Light Blue series) are: focuses on conceptual understanding;uses lots of visual models and pattern exercises;mastery-oriented, focusing at length on a topic;emphasizes mental maths and number senserequires