Students in Mrs. Wilson's fourth-grade classroom watch in anticipation as the guest teacher, Ms. Davis, demonstrates binary signaling using a lightbulb that flashes when she holds it in her hands. She challenges them to guess what she is trying to "say" while making the lightbulb flash on and off, explaining that the lightbulb stands for…

Space has fascinated and intrigued humans of all ages since time immemorial, and continues to do so today. The natural curiosity is engaged when looking up into the sky, notice patterns among celestial objects such as the Sun, Moon, and stars, and wonder. Scientific understanding of those patterns has progressed immensely over the span of human…

"Framework for K-12 Science Education" states that "children are natural engineers … they spontaneously build sand castles, dollhouses, and hamster enclosures and use a variety of tools and materials for their own playful purposes" (NRC 2012, p. 70). The "Next Generation Science Standards" ("NGSS") also…

On any given sunny day, Courtney Vanover's third graders were like alarm clocks, making sure everyone in the room knew when 9:30 was approaching. Why? Because they were participating in a yearlong science project to answer the question, "Where is the tip of the shadow of the school flagpole each morning at 9:30?" Although they did not…