Ann-Marie Pilling found conquermaths:

• Significantly improves attainment“We have early bird Conquer Maths club each day for our borderline children. It has really helped with pre-teaching, support and has raised their understanding and assessment levels.”
• Moderately improves teaching efficiency and productivity“The videos are occasionally used when introducing new topics. ”
• Does not reduce teacher workload“Not really”
• Does not significantly provide school data“It improves rather provides data.”
• Does not significantly improve school processes“Not really”