Chapter 4 discusses accounting practices for governmental operating activities, focusing on typical transactions, revenue recognition, and recording procedures for both funds and government-wide levels. It covers how revenues and expenditures are recognized, including property tax levies, delinquent taxes, and various revenue sources, as well as methods for recording expenditures and handling errors. The chapter also explains the dual-track approach to accounting, emphasizing the distinctions between governmental funds and activities across financial statements.