B.5.FM:4.5 - Examine a choice that can change the answer

Challenge the model at a consequential choice: an omitted interaction, a grouping of cases, a fixed quantity, an operation rule or a correspondence. Use an available observation, a contrasting case or an inexpensive trial when it can distinguish the remaining alternatives.

An operation performed on a model establishes a model consequence. Reliance on a physical prediction also depends on the physical correspondence and conditions. Obtain the assurance needed for that receiving use; a sufficient conditional answer can remain useful while a premise is unresolved.

When a discrepancy has several possible explanations, retain those possibilities until the question needs them distinguished. B.5.MPC.R helps repair a failed physical, mathematical and computational connection. B.5.RR carries a changed premise through affected reasoning.