President 3DuxDesign
a Successful Story from 3DuxDesign Marci Klein M.D
Instrumental in shaping our approach to evaluating student engagement and growth.
At 3DuxDesign, we are committed to developing high-impact, project-based STEM learning experiences that engage students in meaningful ways. To ensure a newly developed product met rigorous standards and demonstrated clear impact and value, our team set out to create a pilot program and evaluation framework that upheld the highest standards of educational effectiveness and developmental appropriateness. To achieve this, we brought in Antonia Llull (Tonina) and her Play To Do Team, highly respected experts in occupational therapy, product evaluation, and child development research.
Her ability to assess learning through both quantitative and qualitative measures has been instrumental in shaping our approach to evaluating student engagement and growth.



Analytical Expertise
Tonina and her team bring a rare combination of analytical expertise and hands-on experience, deeply understanding how children interact with materials, process information, and develop core competencies. Her expertise in sensory integration, cognitive development, and adaptive learning has ensured that our evaluation framework goes beyond traditional metrics, capturing how students learn, collaborate, and problem-solve in real-world contexts. Beyond her initial role in helping to develop assessment tools, through her recommendations for integrating multisensory and inclusive learning strategies, she has helped refine and improve our program to effectively support a diverse range of learners.
Creativity, and commitment to quality
Beyond her technical expertise, Tonina is a strategic and dedicated partner who approaches every challenge with rigor, creativity, and an unwavering commitment to quality. Her insights have been invaluable in developing assessment tools that not only measure learning outcomes but also drive continuous improvement and innovation. Her contributions have strengthened our work, and we highly recommend her to any organization seeking to enhance the impact of their educational programs through thoughtful, research-backed evaluation and design. We continue to collaborate with Tonina on ongoing projects, and she has become an invaluable part of the 3DuxDesign team. For any company looking to develop, refine, or evaluate products for children and youth, we highly recommend her expertise, strategic insight, and unwavering commitment to excellence.
Marci Klein M.D
President 3DUXDESIGN