Teaching is a process than utilizes teacher's subject knowledge, pedagogical content knowledge, methods, communicative skills and other resources. Effective teaching is defined as one that has better learning outcomes (definition 1).
This is subjective since even if research shows some forms like student-centered yield better, the parameters are so many that some believe it is overrated.
Some agreement in defining effective teaching as one that is conceptually effective and demanding in execution/preparation (definition 2) in the sense that few can achieve it or maintain its standards are better definitions but this has not gained academic status and validity
Some forms of effective teaching definition 2 include
- congruency in communicative schemes and visuals i.e. showing a diagram that focuses on the process or schematic summary of goal AND strongly effective communicative schemes using antithesis, metaphor etc
- story-based teaching. Being able to substract details to a great degree while keeping the big picture of lesson to be learned and avoid distractions. This is very demanding