BBC4 个月
Solving problems involving height and length
of a metre. Imagine these children are stood behind a wall which is 1 metre high. Whose head can be seen above the wall? Firstly, did you notice the measurement for the height of the wall is in ...
BBC9 个月
BMI outdated for measuring childhood obesity, Bristol study says
It revealed the traditional method of using Body Mass Index (BMI) is not as useful in measuring fat as waist-to-height ratio (WHtR). Over a 15-year follow-up, 7,237 nine-year-old children were ...