Why instructional coaching works

Teaching is one of the most rewarding professions in the world, yet improving classroom instructional practice remains "critically important, but incredibly hard to do" (Allen, p.112). For decades, schools have predominantly relied on traditional models of professional development: full-day workshops, sporadic expert seminars, or annual lesson evaluations. However, despite good intentions, these traditional formats often leave teachers with rather "blunt" feedback and entrenched, "set teaching routines" that prove difficult to break (Lofthouse et al, p. 10).

If traditional professional development is akin to taking a once-a-year multivitamin, instructional coaching serves as the daily training regimen that actually builds enduring muscle. By shifting the paradigm away from drive-by evaluations and toward targeted, ongoing, and non-judgmental partnership, instructional coaching offers a highly sustainable engine for driving both individual teacher growth and school-wide instructional consistency (Kraft et al, p.548).

What makes instructional coaching different?

At its core, instructional coaching provides personalized, ongoing professional support to teachers through structured, reflective discussion about their daily classroom practice. Rather than rating a teacher's performance for an administrative report, a coach (typically another teacher) collaborates with them in an interactive, iterative cycle. Unlike traditional mentoring, which typically occurs at specific career junctures, such as onboarding an early-career teacher or preparing someone for a promotion, coaching is an ongoing process available throughout a teacher's career.

Grounded in the principles of deliberate practice, effective instructional coaching avoids overwhelming teachers with exhaustive lists of fixes. Instead, the coach and coachee identify and agree upon one or two discrete, bite-sized action steps at any given time—such as sharpening entry routines, refining check-for-understanding techniques, or managing student cognitive load. These action steps are then improved by the coachee by repeated practice, experimentation, rehearsal outside of the classroom, observing others who have mastered this action step, and conducting their own research. The coach returns later to see this action step being employed by the coachee and delivers further feedback to refine and enhance it. Only when both coach and coachee believe the step is embedded and effective, do they agree to move on to improve another step or two through the same, regular, iterative process. A critical distinction of instructional coaching is that it moves beyond merely talking about teaching to actively practicing it.

The value

The empirical literature supporting instructional coaching highlights profound benefits across multiple dimensions of school life:

• Superior instructional and learning outcomes: Kraft et al’s comprehensive meta-analysis of causal evidence demonstrates that teacher coaching has large positive effects on instructional quality and compares exceptionally favorably to other traditional forms of professional development. Research also demonstrates noticeable improvements in student academic achievement, pupil classroom behavior, and overall learner motivation (Allen et al)
• Building social capital and institutional trust: By replacing high-stakes inspection with supportive peer dialogue, coaching fosters a genuinely collegiate school environment and strengthens a school's social capital (Lofthouse et al). Teachers experience feedback as an instrument for growth rather than a source of scrutiny.
• Boosting teacher self-efficacy and wellbeing: When teachers master concrete instructional techniques and observe immediate positive shifts in student engagement, their professional self-efficacy expands (Lofthouse et al). This heightened sense of professional worth serves as a powerful protective factor against burnout and job dissatisfaction.