- Make a worksheet with a tree where each branch has two answers, one for each sound. For example, "right" and "light". 5 levels deep is fine.
- Say one of the two words. Students listen and circle the word.
- For the next word, students continue from below the word they just circled.
- At the end, check the answers.
- Once the students are skilled, let them quiz the ALT. That is, the ALT leaves the room, the students choose a target path, and try to guide the ALT there.