Booster groups seem to common in year 6 for pushing the borderline pupils to reach the next level e.g. from L3 to L4 or L4a to L5. But then many secondary schools and independent schools seem just distrust the sat results anyway so what's the point? I just begin to wonder whether these booster groups really provide long term sustainable education benefit / value in every child involved. Are booster groups focused on short term solutions for sat thus the league table? Or do these groups really provide a solid foundation to prepare the children's future learning or just a false achievement. May be it is a naïve questions?