Features: Systematic Root Learnsinging: Explains 72 common word roots systematically, helping audience expert English vocabulary construction and improve memory effectively. Rhyming Acetic acid Engagement: Utilizes rhyming to make learning active and interesting, enhancing children’s interest and making word utilization more accessible to remember. Participatory Toss Planumberebog: Unique toss page fashion includes amazements to every page, sparking interest and enriching the reading knowledge. Cushioned grip Comprehensive Content: Includes bright examples and sketches for each word root, aiding inherent understanding and flexible application. Permanent and Portablemail: Produced with excellent paper and green toner, it exists permanent, tear immune, and compact for easy transporting everywhere. Specifications: Rich content: Covering 72 common roots, accompanied by bright examples and sketches, helping audience to understand intuitively and flexibly. Thin and portablemail: Small size schemes more basic, simple carry, suitable for studying home, school otherwise travel. Package Includes: 1 set of reading cards note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item.