Assessment is carried out by teachers according to strategies provided by the IB and concerning guidelines to what the students should learn specified in the curriculum model.
)[citation needed] The philosophy of the PYP is to encourage students to become "inquirers, thinkers, communicators, risk takers, knowledgeable, principled, caring, open-minded, well-balanced, and reflective.
From the International Baccalaureate Organization 2007: Participant Workbook, Introduction to the PYP, the following is what IB learners strive to be: In the IBPYP the written curriculum is arranged within six "transdisciplinary themes".
While the themes are universal and applicable to all cultures, the expectation is that there are certain core values, skills and knowledge for international schools, students and educators.
"[5] IB's requirement that the PYP must be implemented schoolwide has resulted in controversy in American public schools where parents cite lack of choice.