Putting the "T" in STEM (science, technology, engineering, and math) education begins by reviewing guidelines from early childhood organizations about technology use by children birth through 8 years old, and identifying the implications for children from birth to 3 and their parents, families, and caregivers. What is known and what matters most for appropriate technology use is connected to recommendations from two national reports on early STEM learning to describe how adults and technology can support high-quality STEM experiences for young children. A professional "media mentor" can engage and empower parents and families as digital decision makers and support them as they navigate the digital age.