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In mathematics education, it has become increasingly important that students acquire and develop 21st-century skills and attributes. These include collaboration, creativity, critical thinking, problem-solving, self-regulation of learning, and life-long learning. It appears that the Netherlands' Realistic Mathematics Approach and Japan's Open-Approach method are very successful in achieving these goals. Answer the following questions based on the above statement.

1.1. Critically evaluate how the mentioned approaches (RME and OAM) contribute to achieving the above-mentioned goals. Make your points clear and motivate your argument.