Innovative new technologies, such as augmented reality (AR), virtual reality (VR) and 3D printers, provide new affordances for education. While each of these technologies has been shown to positively impact learning, they have not yet been widely adopted in schools. With the interest in these technologies growing among educators, this study explores why educators are motivated to learn about these tools, what they already know about these tools, and what they want to know. This paper presents data from 265 educators who completed a pre-course survey before engaging in an open online course to learn about these technologies. Findings from the data reveal significant variance in educators' prior knowledge, interests, and motivations. This paper yields new insights that can support the design of professional learning experiences for educators and potentially increase mainstream adoption and use of these tools in education.