Sequence of lesson is a number of related lessons that develop language knowledge and or language skills over a period of time. It involves a single topic or language area or topics or languages areas that are very closed connected.
Structural sequence
1. revision: past simple
2. revision: present perfect.
3. contrast: past simple vs. present perfect.
Integrated skills sequence
1. vocabulary development: dscribing places (function:describing).
2. reading: choosing a holiday.
3. writing: letter a friend narrating a holday experince (function: narrating).
Project work sequence
1. reading and listening about free-time activities.
2. class survey and research: sport and entertainment.
3. preparation of a poster display to show results of survey about free-time activities.
Reference:
Spratt, M., Pulverness, A., & Williams, M. (2012). The TKT Course Modules 1,2 and 3 (2nd ed.). New York: Cambridge University Press.