Exploring Lunar and Solar Eclipses via a 3-D Modeling Design Task is a detailed lesson plan published in the October 2016 issue of NSTA’s Science Scope journal. It is free to NSTA members but can be purchased for a nominal fee by non-members. The article outlines a classroom activity in which students investigate solar and lunar eclipses by developing a model using simple, inexpensive materials. The authors integrate the 7-E learning cycle model with the KLEW instructional teaching strategy to provide students with an opportunity to construct models of eclipses using prior knowledge of solar system scale and observable patterns of the Sun-Earth-Moon. The authors estimate that the entire lesson plan could be completed in 3 hours which may be optimistic in an heterogeneously grouped middle school classroom. Note: NSTA members can search for the lesson using either title or date at: http://www.nsta.org/middleschool/.