Are you someone who educates middle and high school students about earth sciences? You might find this new NOAA resource on El Nino to be useful. It includes an online module along with student worksheets and a teacher guide on El Nino and its impacts on the Eastern Pacific Ocean. It starts with basic graph interpretation and extends to data investigation. You can check it out at Investigating El Niño: Teacher Resources | NESDIS (noaa.gov).
