Concept:Argumentation in mathematics is a logical chain of reasoning that demonstrates why a given result is true. It also aligns with the heuristic approach, which promotes learning through discovery and active engagement.
Explanation:Statement A is correct. Argumentation is a line of reasoning that explains or shows why a mathematical result is true.
Statement B is incorrect. Mathematics relies on deductive logic, not empirical evidence like other disciplines.
Statement C is correct. Argumentation supports the heuristic approach by encouraging students to explore, reason, and discover principles.
Statement D is incorrect. Argumentation is beneficial even for elementary students; assessment difficulty does not make it less useful.
Therefore, only statements A and C are appropriate.
Answer:Option A: A and C