1.
Customized textbooks for each level 〈Q+Q〉
〈Q+Q〉 is composed of three levels of difficulty: Basic Practice, Standard Completion, and Advanced Development.
You can enhance your learning effectiveness by choosing a textbook that is just right for your learning purpose and level of difficulty.

2.
Triple System that enables systematic type learning
We have provided a separate WORK BOOK, a 1:1 customized textbook that allows you to sufficiently review the types of material learned in the LECTURE BOOK.
We also provide a SOLUTION with detailed explanations to help you fully understand the problem-solving process.

3.
Solid conceptual learning and thorough practical preparation
〈Q+Q Basic Practice〉 provides a solid foundation with easy concept explanations and concept types, and allows for thorough preparation for actual exams with representative types that appear in textbooks and school exams.