Matthew Tyler found maths-whizz:

• Significantly builds student knowledge“Applying skills in the context of problems ”
• Significantly improves attainment“Skills in the context of problems ”
• Moderately reduces attainment gap“As before ”
• Significantly reduces teacher workload“We use it for homework so I don’t have to mark written work”
• Slightly provides school data“Maths ages and amount of time spent using it”