Reimagining Main Lesson: How to Plan Effective, Creative, and Comprehensive Language Arts Main Lessons. Following Steiner's guidance, our approach to designing a main lesson works with the natural rhythms of the young child. Instead of 30-60 minutes opening 'circles,' which Steiner never promoted, we weave singing, speech, and purposeful movement as transitions throughout the main lesson... the impact on classroom management and learning- MAGICAL!