The chapters in Kymppi in English 1B consist of two double-page spreads. On the first spread, the concept is illustrated with clear models that facilitate comprehension. Practice is provided by easy-to-understand basic exercises, and similar kinds of exercises are used throughout the book. The second double spread features a new set of basic exercises, exercises where pupils can apply what they have learned, a challenging problem for advanced learners and homework. Each unit ends with a Play and test your skills section that can be used to ensure that the content has been fully mastered. The key concept in Kymppi in English 1B is crossing the tens boundary in addition and subtraction. The pupils learn about the decimal system and develop number sequence skills with numbers up to 100. The concept of measuring is also introduced in the spring.