Enrichment/aaps

Bowland Maths aims to make maths engaging and relevant to pupils aged 11-14, with a focus on developing thinking, reasoning and problem-solving skills. In these materials, math emerges naturally as pupils tackle problems set in a rich mixture of real-life and fantasy situations. At the core of Bowland Maths is a set of 26 classroom projects, entitled Case Studies, each of which supports 2 to 5 lessons on a topic from outside mathematics. 

https://www.bowlandmaths.org.uk/index.html 

The Mathematics Assessment Project is part of the Math Design Collaborative initiated by the Bill & Melinda Gates Foundation. The project set out to design and develop well-engineered tools for formative and summative assessment that expose students’ mathematical knowledge and reasoning, helping teachers guide them towards improvement and monitor progress. The tools are relevant to any curriculum that seeks to deepen students' understanding of mathematical concepts and develop their ability to apply that knowledge to non-routine problems.  This is designed for middle and high school students. 

https://www.map.mathshell.org/