Which mathematical concepts are emphasized in the Common Core Module 4?

The emphasis on ratios, proportions, and the understanding of fractions in Common Core Module 4 highlights the importance of these concepts in developing mathematical reasoning and problem-solving skills. This module focuses on helping students make connections between different representations of rational numbers and their applications in real-world situations.

Understanding fractions is critical as it lays the groundwork for more complex mathematical concepts and operations, while ratios and proportions are fundamental in various disciplines, including finance, science, and everyday decision-making. By mastering these areas, students are better equipped to tackle higher-level mathematics and apply their knowledge in practical scenarios.

The other options do not align with the specific content focus of Common Core Module 4, which is aimed at deepening understanding of rational numbers rather than broader mathematical concepts or basic arithmetic operations.