Children's ideas, which differ from a scientific view, are termed as alternative conceptions (AC). AC are extremely resistant to change and arise from everyday experience. Investigation of children's AC about weight gain and their ability to discriminate between healthy and unhealthy foods is important, because it can help teachers reduce obesity…

Overweight and obesity prevalence in children has increased worldwide. One factor contributing to this rise is the increase in portion sizes, with individuals potentially having difficulties with portion size estimation. Portion size estimation could be improved with portion size education involving the mathematical concepts of volume and…

The purpose of this study was to investigate the extent to which overweight and obesity are challenges among primary school children in Kinondoni and Njombe districts. The study sought to investigate those aspects in terms of prevalence, causes and impacts on social, health as well as children learning behaviours and outcomes. Systematic random…