This document discusses early childhood assessment and development. It notes that the Development Matters guidelines contain over 500 statements to assess children across multiple aspects of development. For a typical nursery class, this could result in over 150 levels to assess for each child. It also summarizes concerns that such detailed assessment can limit children's learning and view them through "levels" rather than as whole people. The document advocates focusing instead on observing children's exploration and thinking, with assessment through conversations and celebrating their learning.