[Main book]

Ⅰ.
Change and diversity
1.
Evolution and Biodiversity
01.
Environment and Life in Geological Ages
02.
Natural selection and evolution
03.
Biodiversity and Conservation
2.
chemical change
01.
Oxidation and reduction
02.
Neutralization reaction between acid and base
03.
Energy input and output in material changes
Ⅱ.
Environment and Energy
1.
Ecosystem and environment
01.
Components of an ecosystem
02.
ecosystem balance
03.
Impact of environmental changes on the ecosystem
2.
Changes in the Earth's environment
01.
Greenhouse effect and global warming
02.
Global environmental changes and human life
3.
Energy and Sustainable Development
01.
Generation and conversion of solar energy
02.
Development
03.
Energy efficiency and renewable energy
Ⅲ.
Science and Future Society
1.
Science and Future Society
01.
The Usefulness of Science and the Use of Big Data
02.
Advances in science and technology and scientific ethics

[Answer and Explanation]

HIGH TOP: Detailed, structured explanations and level-based questions that make a difference in your skills.

· Complete analysis of five textbooks, establishing a framework for systematic conceptual understanding.
- The hierarchy of important concepts learned in each unit is organized for easy viewing at a glance.
- The meaning of difficult terms and supplementary content are explained in detail.
- In the data analysis/plus lecture, the content that can make a difference in skills was explained in an easy-to-understand way.
- We have created simple questions to check whether you have understood the key content of each topic.


· Exploratory analysis, intensive analysis, and in-depth lectures
- In the inquiry analysis corner, we provide inquiry videos in QR format to help you easily understand the process and results of essential inquiry included in the textbook.
We also provided a wealth of related research questions in stages.
- In the intensive analysis corner, we have selected important topics and explained them in detail so that you can develop your skills through intensive analysis.

- In the advanced lecture corner, we have selected topics that can make a difference in your skills even with just a little knowledge, and explained them in an easy-to-understand manner, although they are concepts learned in physics, chemistry, life science, and earth science.

· Build solid skills through step-by-step problems
- We have designed the textbook to be a modified version of various types of problems to check whether you have thoroughly understood the key concepts of each unit.
- The core concepts for each section are organized so that you can solidify the concepts before solving problems.

- We have carefully selected topics that frequently appear on the CSAT for each level and organized them so that you can experience CSAT questions in advance.

- The CSAT-style questions are divided into 2-point and 3-point levels, allowing you to check your skills by difficulty level.
- It is structured so that you can learn how to approach descriptive problems by building background knowledge step by step.
- It is structured to help you improve your skills to the next level by integrating thematic problems by area for each chapter.

- Integrated topics are presented along with materials to help you prepare for essay-type questions.


· Easy-to-understand and detailed answers and explanations
- It includes detailed and friendly explanations to help you easily understand incorrect problems, and analyzes and presents information you need to know from important pictures and materials.