Richard found Diagnostic Questions:

• Significantly builds student knowledge“We use the questions at the start of all maths lessons. Each class begins with three questions. 1 on something we did 2 terms ago, 1 on something we did 1 term ago and 1 question onsomething we did the day before.”
• Significantly improves teaching efficiency and productivity“MCQ that are already made and well designed saves lots of time”
• Significantly reduces teacher workload“so many quality questions that w can use”
• Significantly improves teacher knowledge and skills“The misconceptions that the questions show are excellent and force teachers to think more deeply about what mistakes the children make/will make”
• Significantly saves school money“It is free, amazing.”