A Bayville Primary School second grader instructs a fourth-grade student during the Learning Expo on Dec. 22.

Locust Valley’s Bayville Primary School second graders in Ms. Higgins and Mrs. Morales’ class shared their new knowledge of science and literacy with older peers and teachers during the building’s Learning Expo this winter.

During the event, the class welcomed fourth graders from Bayville Intermediate and taught them about subjects such as crabs, spiders and wolves using the digital books and drawings they created after researching various topics.

The event served as a culminating activity to Bayville Primary students’ unit of study on non-fiction reading and writing.