As per IB requirements, six units of inquiry, one for each of the trans-disciplinary themes, are to be covered in depth each year, each within a three- to six-week time frame. At Sanjan Nagar, Each unit is documented on a PYP planner and the units may not run simultaneously. In early years classes (students aged 3-5), teachers teach four themes in one academic year two of which must be “Who we are” and “How we express ourselves”.