Three Conditions to Successful Interventions
A couple of years ago, I realised interventions at my school were not as successful as they could have been. One small tweak made a significant difference.
Interventions were squeezed into leftover time, delivered by whoever was free, or aimed at the same students for too long.
We decided to prioritise three conditions for intervention: the right person, the right students and protected time.
The change was simple: we timetabled 30 minutes of TA led whole-class independent reading after lunch to build those three conditions into the school day.
1. The right person
Teachers lead the interventions because they understand the misconceptions behind errors and the precise next steps needed. Because the class teacher delivers the support, they can immediately revisit it in later lessons, make links and check whether it has stuck.
This is not about dismissing TAs — many deliver excellent interventions — but high-quality intervention depends on expertise, planning and training, not simply availability.
2. The right pupils
Groups are flexible and responsive. It is not the same students every day. Teachers have autonomy to select students based on need: a misunderstanding from that morning’s maths lesson, pre-teaching for tomorrow’s learning, gaps from test analysis, greater depth challenge or short 1:1 support.
That flexibility also reduces stigma and prevents students being defined by a permanent label.
3. Protected time
We timetable 20-30 minutes every day from Year 1 upwards, with allocated teaching space and enough time to do something meaningful.
Because it is built into the day, intervention stops competing with everything else. Students are not routinely withdrawn from lessons, so curriculum breadth remains protected.
Reading time still matters too — independent reading sits within a wider reading culture of modelled reading, rich texts and repeated reading.
❌ Intervention is not an add-on, a rushed catch-up or an afterthought.
✅ It is precise, timely and embedded.
I learned that when we created these conditions — the right person, the right pupils and protected time — intervention has a far better chance of changing outcomes.