This presentation discusses inquiry-based learning and various STEM teaching strategies for children in early years. Inquiry-based learning is presented as a student-centered approach that encourages exploration, questioning, and problem-solving, contrasting with traditional teacher-led methods. The presentation highlights the benefits of inquiry-based learning, including improved student engagement, increased mastery, and enhanced knowledge retention, and outlines its key components: observation, questioning, investigation, conclusion, and discussion. It also details four models of inquiry: structured, controlled, guided, and free inquiry. Furthermore, the presentation explores various STEM teaching strategies, such as team-based learning, visualization strategies, inquiry-based instruction, and effective lecturing, emphasizing the importance of selecting appropriate strategies to support student learning and development in science, technology, engineering, and mathematics. The presentation concludes that teachers should encourage questioning and problem-solving to enhance students' understanding and career development.