Outdoor Explorers – Project Based Learning | Activities for Observation, Discovery & Cross-Curricular Learning. SPANISH ONLY | No-Prep.This Spanish-language resource includes 44 pages of engaging and leveled activities designed to encourage active observation of the world around us — whether in nature or in more urban settings like towns, cities, schoolyards, or local parks. With a playful and educational approach, these activities invite children to explore, describe, measure, classify, and i