Teaching theory is a mix of theory and practice, aiming to balance academic knowledge with real-world teaching experiences. Researchers warn against two extremes: becoming overly focused on theory without practical application, or solely focusing on practical strategies without theoretical understanding. It's crucial for teaching theory to avoid becoming too academic or too utilitarian, and instead, find a middle ground that benefits both academic development and social responsibility. Ethical considerations are also emphasized to ensure teaching theory research remains grounded in reality and accountable for its impact.