Viable+Arguments

Do students... Make conjectures? Explore the problem to support or disprove their conjecture? Refine or change their conjecture? Construct their justification?Use objects? Drawings, Diagrams, examples and counterexamples? Cases? Have opportunities to explain their conclusions and communicate their reasoning with others? What language is needed? Have opportunities to ask useful questions to seek clarity? Follow the arguments of others looking for flaws and explaining them?