All students should have access to learning experiences that help them make sense of important mathematical concepts. This study highlights teacher actions for consolidating student learning during teacher-lead discussion in the early years. We report on a case study of a Year 1 teacher involving a lesson observation. Highlights of the lesson include intended teacher actions that supported students to focus on the learning goals; use of work samples to make concepts clearer; fostering mathematical connections; and questioning strategies for promoting cognitive activation. Teacher actions such as questioning strategies and discussion of work samples may be key for helping students to achieve mathematical learning goals.