You are adding too much information on top of the comparatives. Students are getting confused and missing the core point... If I were you, I would teach them syllables first in a previous lesson, and then nouns and adjectives another lesson and lastly, the comparatives in this lesson.
The design of my class is same also. I am going to teach like that. If I make such a teaching like that , the students will participate more actively. Thank you my teacher.
