This is a thoroughly revised edition of Integrated Korean: Advanced 1, the seventh volume of the best-selling series developed collaboratively by leading classroom teachers and linguists of Korean. All the series' volumes have been developed in accordance with performance-based principles and methodology - contextualization, learner-centeredness, use of authentic materials, usage-orientedness, balance between skill getting and skill using, and integration of speaking, listening, reading, writing, and culture. Grammar points are systematically introduced in simple but adequate explanations and abundant examples and exercises. All lessons are content-based and address a wide variety of topics chosen to meet students' interests and needs. Authentic examples of texts provided include poems, news articles, speeches, and essays. Each content-based lesson consists of objectives, pre-lesson topics, and reading, further reading, and culture sections. Reading sections contain comprehension questions, grammar and usage, and activities; further reading sections are accompanied by their own comprehensive activities. To ensure students' accurate understanding of the material, English translations of all Korean texts are given at the end of each chapter. Vocabulary for each lesson appears conveniently at the bottom of the page. Integrated Korean is a project of the Korean Language Education and Research Center (KLEAR) with the support of the Korea Foundation. In addition to course textbooks and workbooks, KLEAR volumes include the Korean Reader for Chinese Characters, Korean Composition, Selected Readings in Korean, Readings in Modern Korean Literature, Korean Language in Culture and Society, and A Resource for Korean Grammar Instruction. A Dictionary of Korean Grammar and Usage is forthcoming.

Ever since Einstein s special relativity in 1905, the principle of invariant light speed in vacuum has been attracting attention from a wide range of disciplines. How to interpret the principle of light speed? Is light referred to continuous light, or light pulse with definite boundaries? Recent discovery of superluminal medium triggered vigorous discussion within the Physics community. Can communication via such superluminal channel break the speed limit and thus violate causality principle? Or, will a single photon, which is not governed by classical laws of Physics, tend to break the speed limit? To solve these problems, this Brief brings in Optical Precursors, the theoretical works for which started as early as 1914. This is a typical optical phenomenon combining wave propagation theory and light-wave interaction. Both theory and experimental works are covered in this Brief. The study of precursor verifies that the effective information carried by light pulses can never exceed the speed of light in vacuum- c. Further, through observation from nonclassical single photon source, the precursor rules out the probability of a single photon traveling with the speed, breaking the classical limit.

This workbook accompanies Integrated Korean: High Intermediate 2, the sixth volume of the best-selling series developed collaboratively by leading classroom teachers and linguists of Korean. All volumes are developed according to performance-based methodology and principles: contextualization, learner-centeredness, use of authentic materials, function/task-orientedness, balance between skill-getting and skill-using, and integration of speaking, listening, reading, writing, and culture. Grammar points are systematically introduced with simple but adequate explanations and abundant examples and exercises. Each situation/topic-based lesson consists of objectives, pre-lesson topics, and conversation, reading, further reading, and culture sections. Conversation and reading sections contain comprehension questions, grammar and usage, activities, and English translations. Integrated Korean is a project of the Korean Language Education and Research Center (KLEAR) with the support of the Korea Foundation. In addition to the five-level Integrated Korean textbooks and workbooks, volumes include Korean Composition, Korean Language in Culture and Society, Korean Reader for Chinese Characters, Readings in Modern Korean Literature, A Resource for Korean Grammar Instruction, and Selected Readings in Korean.

Developed collaboratively by leading classroom teachers and linguists of Korean, High Intermediate replaces Advanced Intermediate as the third-year textbook in the popular Korean language-learning series Integrated Korean. All volumes are developed according to performance-based methodology and principles: contextualization, learner-centeredness, use of authentic materials, function/task-orientedness, balance between skill-getting and skill-using, and integration of speaking, listening, reading, writing, and culture. Grammar points are systematically introduced with simple but adequate explanations and abundant examples and exercises. Each situation/topic-based lesson consists of objectives, pre-lesson topics, and conversation reading, further reading, and culture sections. Conversation and reading sections contain comprehension questions, grammar and usage, activities, and English translations. Vocabulary for each lesson appears conveniently at the bottom of the page. Integrated Korean is a project of the Korean Language Education and Research Center (KLEAR) with the support of the Korea Foundation. In addition to the five-level Integrated Korean textbooks and workbooks, KLEAR volumes include Korean Reader for Chinese Characters, Korean Composition, Selected Readings in Korean, Readings in Modern Korean Literature, Korean Language in Culture and Society, and A Resource for Korean Grammar Instruction. A dictionary of Korean grammar and usage is forthcoming.

This is a thoroughly revised edition of Integrated Korean: Advanced 2, the eighth volume of the best-selling series developed collaboratively by leading classroom teachers and linguists of Korean. All the series’ volumes have been developed in accordance with performance-based principles and methodology—contextualization, learner-centeredness, use of authentic materials, usage-orientedness, balance between skill getting and skill using, and integration of speaking, listening, reading, writing, and culture. Grammar points are systematically introduced in simple but adequate explanations and abundant examples and exercises. All lessons are content-based and address a wide variety of topics chosen to meet students’ interests and needs. Authentic examples of texts provided include poems, news articles, speeches, and essays. Each content-based lesson consists of objectives, pre-lesson topics, and reading, further reading, and culture sections. Reading sections contain comprehension questions, grammar and usage, and activities; further reading sections are accompanied by their own comprehensive activities. To ensure students’ accurate understanding of the material, English translations of all Korean texts are given at the end of each chapter. Vocabulary for each lesson appears conveniently at the bottom of the page. Integrated Korean is a project of the Korean Language Education and Research Center (KLEAR) with the support of the Korea Foundation. In addition to course textbooks and workbooks, KLEAR volumes include: Korean Reader for Chinese Characters, Korean Composition, Selected Readings in Korean, Readings in Modern Korean Literature, Korean Language in Culture and Society, and A Resource for Korean Grammar Instruction. A Dictionary of Korean Grammar and Usage is forthcoming. Audio files for Advanced 2 may be downloaded in MP3 format at https://kleartextbook.com.