This course introduces applied mathematics in various social contexts with an emphasis on communication to non-experts. Its focus is exploring how mathematical tools such as calculus, linear algebra, optimization, and algorithms help shape decision-making in real-world applications. Depending on instructor expertise and student interest, applications may include search algorithms, apportionment methods, resource allocation, political districting, and more. By the end of the course, students will be equipped with mathematical skills to analyze complex systems and think critically about how to deploy mathematics to solve real-world problems.