In this cluster researchers gave children half of the nutrition and half of the physical activity programme each term. An activity book, designed for use at home, accompanied each term’s lessons. Every week in the activity book a related and fun ‘homework’, such as colouring, quiz or craftwork, was given. There would be a concluding weekly message for the children and parents every week. Parents were sent newsletters apprising them of the lessons learnt and a blueprint for the next term.

4. 5. 4: Cluster Four – Control group (‘Be Smart’) Researchers considered it essential to provide the children in this group with educational programmes for purely ethical reasons. Focus was to make the children learn about food in a non-nutrition sense. The topics covered were food traditions, food in different countries and food processing. The knowledge base of students was enhanced by making them learn about the human body, using an interactive CD-Rom.

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Children had an activity book, which had a related homework, but it did not have weekly messages (J. M. Warren et al, HEALTH PROMOTION INTERNATIONAL Vol. 18. No. 4 © Oxford University Press 2003; 289-290). These all explorations resulted in realising the necessity that the future studies of this type should be of adequate period so as to enable changes in anthropometry to be detected by the researchers, and it also emphasised on the criticality of the long-term follow if the desired results are to be met.