1. Adding reinforced corners
2. David Kunitz Amon Millner Bryanne Leeming Paayal Khanna Daniel Ozick. Unruly Splats. Retrieved from https://www.kickstarter.com/projects/bryanneleeming/unruly-splats-active-stem-play David Kunitz Amon Millner Bryanne Leeming Paayal Khanna Daniel Ozick. Unruly Splats. Retrieved from https://www.kickstarter.com/projects/bryanneleeming/unruly-splats-active-stem-play
3. Marina Umaschi Bers. 2017. Coding as a playground: Programming and computational thinking in the early childhood classroom. Routledge. Marina Umaschi Bers. 2017. Coding as a playground: Programming and computational thinking in the early childhood classroom . Routledge.
4. Marina Umaschi Bers and Michael S Horn. 2010. Tangible programming in early childhood: Revisiting developmental assumptions through new technologies. High-tech tots: Childhood in a digital world: 1--32. Marina Umaschi Bers and Michael S Horn. 2010. Tangible programming in early childhood: Revisiting developmental assumptions through new technologies. High-tech tots: Childhood in a digital world: 1--32.
5. Karen Brennan and Mitchel Resnick. 2012. New frameworks for studying and assessing the development of computational thinking. annual American Educational Research Association meeting Vancouver BC Canada: 1--25. Karen Brennan and Mitchel Resnick. 2012. New frameworks for studying and assessing the development of computational thinking. annual American Educational Research Association meeting Vancouver BC Canada: 1--25.