Do you have students who have never mastered fraction concepts--or need a good review? Key to Fractions covers all topics from basic concepts to mixed numbers and is written with secondary students in mind. Minimal reading is required, so students can easily work independently or in small groups. These self-paced, self-guided workbooks motivate students to succeed. The student workbook for Key to Fractions, Book 4, Adding and Subtracting. Answers and notes are sold separately.
