"Math in Focus: Singapore Math: Grade 1 Student Textbooks & Workbook, 1A & 1B”. These are part of the Singapore Math series designed to help students with their mathematics skills. These books covers assessment topics for Grade 1 students, providing a comprehensive understanding of mathematical concepts. Published by Houghton Mifflin Harcourt, these books can be used as homeschool curriculum or as a valuable resource for students looking to improve their math abilities. Good condition. Some like new, minimal cover damage, see photos. 6 sets available.