The consultant should recommend K-12 Architecture Kit as an out-of-the-box solution to track enrollments by grade for the elementary school. K-12 Architecture Kit is a solution that extends EDA to meet the needs of K-12 schools. K-12 Architecture Kit provides objects and features to track student information, such as grades, attendance, and program enrollments. The consultant can help the elementary school configure and customize K-12 Architecture Kit to track enrollments by grade using features such as Grade Enrollment or Grade Level. Nonprofit Success Pack, Education Data Architecture, and Program Management Module are not out-of-the-box solutions to track enrollments by grade for the elementary school. Reference:
https://github.com/SalesforceFoundation/k12-architecture-kit
https://powerofus.force.com/s/article/K12-Architecture-Kit