Ambitious Science Teaching (AST) outlines a powerful framework for the "HOW" of teaching the STEEELS Standards with rigor and equity for students from all backgrounds. AST focuses on four sets of core teaching practices: planning for engagement with big ideas, eliciting student thinking, supporting changes in student's thinking and drawing together evidence-based explanations. Practices, tools and routines are support student active participation and can be implemented immediately. Also visit the AST website.