if they want headings i would definately start off by using the syllabus as your main guideline for the assessment.
understanding business organisations with reference to management theories
• classical-scientific
– management as planning, organising and controlling
– hierarchical organisational structure based on division of labour
– autocratic leadership style
• behavioural
– management as leading, motivating, communicating
– flat organisational structure, teams
– participative/democratic leadership style
• political
– uses of power and influence, management as negotiating and bargaining
– structure as coalitions
– stakeholder view
• strengths and weaknesses of the classical, behavioural and political approaches
• systems/contingency
– adapting management and organisational approaches to circumstances
a word of warning when you are comparing and contrasting, make sure you do not repeat yourself as this is a common thing done by many students