Becca Palczynsky February 9, 2013 2013, GFL, OAS, Middle, Environment, World Exploring El Niño and La Niña Becca Palczynsky February 9, 2013 2013, GFL, OAS, Middle, Environment, World Click on the image above to download the lesson. Description: Students will understand how El Niño and La Niña are formed and how climate patterns can determine if an El Niño or La Niña event is likely to occur.Grade level(s): Middle Standards: OAS, GFL Produced By: Susan Smith