How many new words should I teach per lesson?
For elementary students, aim for 6-10 new vocabulary words per 40-minute lesson. For middle and high school, 8-12 words is appropriate. Quality of exposure matters more than quantity — students should encounter each word at least 5-7 times in different contexts (flashcard, sentence, activity, game) within a single lesson.
What if students only want to speak Korean in class?
This is normal, especially for beginners and lower-level students. Use strategies to increase English usage gradually: English-only rules during specific activities (not the whole class), an English points system where teams earn points for speaking English, and pair activities where the task requires English. Avoid punishing Korean use — instead, reward English use.
How do I handle mixed-level classes?
Mixed levels are common in Korean classrooms. Use tiered activities: the core task is accessible to all students, with extension tasks for fast finishers and scaffolding (word banks, sentence starters, picture prompts) for struggling students. Pair stronger students with weaker ones for peer teaching. Also, games with adjustable difficulty (easier questions for lower levels, harder ones for advanced) help keep everyone engaged.
Where can I find free ESL lesson materials?
Top free resources: ISLCollective.com (worksheets and video lessons), BusyTeacher.org (printable worksheets), ESL-Library.com (free trial), Waygook.org (Korea-specific materials shared by ESL teachers), and TeachThis.com.au. YouTube channels like English Singsing and BBC Learning English are also excellent for classroom use.