 How does your school observe teacher quality or at least teaching quality? So consider this, observations vary from five minute drop-ins to hour-long appraisals. And the question I've got for you is, do they truly reflect teaching quality? So Mashburnetal's research, if you click the link in this video, it questions the impact of observation duration on reliability and validity. Longer isn't always better and too short also might miss the essence of quality teaching and there's been lots of dialogue and discussions on lesson observations across England over the last decade. The research in this video looks at 47 teachers comparing 40 minute lessons and I guess the optimum length they determine, well, you're gonna need to click the link to see what I've discovered. Observations are like glimpses through a keyhole and we know sometimes they just show the kind of tip of the iceberg. And this research might be a game changer for some schools who are searching for new ways to improve how they conduct learning walks for the year ahead. So take a look inside. We need depth, not just duration and we also need to have methodologies that encourage teachers to open their doors to. So how we do this as school leaders is just as important.