Singapore Math includes two semesters of instruction per year, with a paperback textbook (non-consumable) plus a write-in workbook per semester. You'll find the answers in this Answer Key. Answer Key covers levels 1 through 3 so it will serve you for 3 years of instruction. The answers are also found in the Home Instructor's Guide for levels 2 and above. If you are comfortable with math, you may be able to use just the Answer Key at lower levels. If you intend to teach a daily math lesson or teach the main concept through a visual aid, then you will benefit from the Home Instructor's Guide which details the lesson objective, hands-on demonstrations and activities.
