The Early Years
Young children create models to share what they know about or how something works. Models may be arm gestures children use to show “how big” something is (or “so tiny” with fingers), drawings to represent themselves and family members, or models of spaceships and towers made with blocks. Children may create models to document their observations during experiences such as holding an earthworm or watching a tower crane on a construction site. Children can explain how their play dough model of an earthworm is not exactly what a worm is like (“It’s too short. Worms are stretched out longer”), and what their model of a crane needs to “be real.” In sharing their images or physical replicas, children share their understandings and highlight the parts that seem important to them, helping educators understand what children know and think.
Educators can discuss these models with students to determine if they express what is intended (helping children think about and test ideas about phenomena), or if it raises and answers any questions (“How do worms move?”). In “Using Models Scientifically” the authors present a table of reflective questions for engagement in scientific modeling (Forbes et al. 2015, p. 44). Asking preschoolers these questions can be appropriate as they consider that drawings and sculptures are models of an object or for explaining ideas. For example, when a four-year old boy draws a picture representing himself with his shadow, he may not connect the shadow and self at his feet or may draw the shadow head touching his feet. Reflective questions can help this child evaluate and revise to create a model that accurately represents shadow formation. Considering the reflective questions can help children really think about their representation. Revise them for preschoolers: “Does your model show what happens?” and “Tell me why you think that.” Additional experiences observing shadows help children consider the reflective questions. With further exploration children may add to their model the light source that created the shadow.
Other student reflective questions relate to the media literacy concept of understanding how others might interpret a message. Many adults have had the experience of misinterpreting a child’s drawing—seeing a dog when the child drew a horse, or a tree that is a child’s flower. We can ask, “Who will learn from your model?” and “Will other people see the same things you do when they look at your model?” Ask these questions in a small group or one-on-one so children have time to think and respond, and have support for making changes if they want to.
Models allow scientists to summarize and depict the known features of a physical system and predict outcomes using these depictions (NRC 2012, p. 110; Michaels, Shouse, and Schweingruber 2008, p. 110). Consider if some of your children are ready to use models for more than simple representations of an experience, observation, or idea, and begin to use models as tools to explain how or why things happen (Forbes et al. 2015).
To introduce children to the concept of making and using models to represent their observations of natural phenomena.
Help children reflect on and revise the model through discussions where new questions are raised and after they share the model with others to explain their ideas about what happens when it rains. Refer to it when it rains and have children test their ideas of the phenomena. Does their model explain what they are observing or is there something to revise?
Ashbrook, P. 2009. The early years: Adding up the rain. Science and Children 46 (9): 18–20.
Ashbrook, P. 2013. The early years: The wonders of weather. Science and Children 50 (5): 22–23.
Ashbrook, P. 2018. The early years: Creating a possibility-rich classroom environment. Science and Children 56 (3): 16–17.
NGSS Lead States. 2013. APPENDIX E – Progressions Within the Next Generation Science Standards. Next Generation Science Standards: For states, by states. Washington, DC: National Academies Press.
Schwarz, C., C. Passmore, and B.J. Reiser. 2017. Helping Students Make Sense of the World Using Next Generation Science and Engineering Practices, Chapter 6: Developing and Using Models. Arlington, VA: NSTA Press.
Forbes, C., and T. Vo, L. Zangori, and C. Schwarz. 2015. Using models scientifically. Science and Children 53 (2): 42–49.
Michaels, S., and A.W. Shouse, and H.A. Schweingruber. 2008. Ready, set, SCIENCE! Putting research to work in K–8 science classrooms. Washington, DC: National Academies Press.
National Research Council (NRC). 2012. A framework for K–12 science education: Practices, crosscutting concepts, and core ideas. Washington, DC: National Academies Press.