Which of the following is least appropriate about contextual problems in mathematics?

To understand which statement is the least appropriate about contextual problems in mathematics, let us analyze the nature and purpose of contextual problems step-by-step:

1. Connection to real life: Contextual problems are designed to be situated in real-world scenarios or situations that are meaningful to students. This makes the statement "They are connected closely to children’s lives" highly appropriate.

2. Interdisciplinary and experiential roots: Contextual problems can easily be drawn from shared classroom experiences, such as field trips, or integrated with other subjects like science, art, and social studies. Thus, the statement "They might be derived from recent experiences in the classroom like a field trip, a discussion in art, science, or social studies classrooms" is also appropriate.

3. Development of mathematical modeling: When children engage with contextual problems, they learn to translate real-world situations into mathematical representations (expressions, equations, diagrams, etc.). This develops their mathematical modeling skills, making the statement "They can help in developing the children’s ability of mathematical modelling" highly appropriate.

4. Focus of contextual problems: The primary goal of contextual mathematics is to shift children away from rote memorization and a singular focus on finding a single "correct number" without understanding. Instead, contextual problems encourage children to explore multiple strategies, reason logically, interpret their results in context, and understand the problem-solving process. When problems are properly contextualized, children engage with the scenario and the meaning of the operations rather than just rushing to calculate an answer. Therefore, stating that children tend to focus on getting a correct answer while solving contextual problems is the least appropriate description of their role and impact in learning mathematics.

Hence, the least appropriate statement about contextual problems is: Children tend to focus on getting a correct answer while solving them.