I adapted some previously posted materials to make the following PPTS for periods 1 and 2. (Second period was an open class that went really well, thank goodness.) The first PPT introduces various suggestions for the "Let's..." before "Can you join us?"
For the second period, I used this material for the Human Matching game as review. The second slide gives directions for the class, but the point is for the class to look at the slide, remember the suggestion, then add, "Can you join us?" directed at the chosen team (which should be standing). Each member sits or stands, using the "Sure, I can." or "Sorry, I can't." If the number of team members sitting or standing matches the number that appears on the screen, they get a point (a "good card" in our classroom).
After introducing "must" with the last PPT and learning reasons for why they could NOT do something, we played a giant version of Tic-Tac-Toe. This game is very adaptable, involves a lot of students, a lot of dialogue, no techy materials, and is pretty fun. Here's how to play:
1. I asked the students the big question from Lesson 15 and wrote it on the board, (Q: Can you join us?) and then asked the answer for the period (A: Sorry, I can't. I must...). I actually wrote "Sorry I cant" and then made them correct the three punctuation errors.
2. After getting the target dialogue on the board, draw the giant tic-tac-toe grid (familiar to most of us, but surprisingly not too popular here... play a quick game with a co-teacher or student to demonstrate the three-in-a-row concept).
3. Ask students to complete the "I must..." sentence with reasons they learned from the PPT. (ex: Write "help make kimchi" in one square of the grid.) Continue until all nine squares are filled with vocabulary.
4. Ready to start. Divide the class into two teams; one is X's, one is O's.
5. Two students from the first team must complete the dialogue properly within 10 seconds to claim their X or O on the grid. (One student must stand and say the question, another must stand and make a response.) For example, if the student answering says, "Sorry, I can't. I must help make kimchi." they'll get to X or O that spot on the grid. If they take too long or make mistakes, the other team can steal.
6. First team claiming three X's or O's in a row wins the game. Repeat with as much time as is remaining.
This game is a bit difficult to explain the first time around, but well worth it in the long run. Also, I stress new volunteers every game to get as many people as possible involved.
**There's a slide in the "must" PPT that involves a terrible picture of me studying Korean that you can edit or just delete the slide completely.