This document discusses inquiry learning and guided discovery models of teaching science. It begins by defining inquiry learning as an active learning process where students solve problems, think critically, and discover truths through their own exploration and prior knowledge. Several models of inquiry learning are described, including guided discovery, problem-based learning, and the 5E model. Guided discovery is explained as an instructional method where students learn through hands-on exploration and asking questions to discover concepts with some structured support and progressive explanations from teachers. The document advocates for inquiry-based approaches to engage students and help them build deep understanding.