In the past two decades, impact evaluation has become an unavoidable topic in the social sector. Yet beyond the discourse on how to measure social impact lies a structural problem: We are not ...

For decades, body mass index (BMI) has been the dominant tool for defining obesity, despite longstanding concerns that it poorly reflects individual health risk. Growing evidence suggests that the ...

The World Bank’s mission is to end extreme poverty and boost shared prosperity on a livable planet. To effectively monitor progress toward this goal, it is critical to measure poverty on a regular ...

Play this interactive game to practise your Key Stage 1 maths skills of measuring mass. Visit the bakery, post office and building site to help the Canine Crew to solve everyday problems using your ...