This course provides an introduction to the fundamental principles and techniques of software development that have greatest impact on practice. Topics include capturing the essence of a problem by recognizing and inventing suitable abstractions; key paradigms, including state machines, functional programming, and object-oriented programming; use of design patterns to bridge gap between models and code; the role of interfaces and specification in achieving modularity and decoupling; reasoning about code using invariants; testing, test-case generation and coverage; and essentials of programming with objects, functions, and abstract types. The course includes exercises in modeling, design, implementation and reasoning.

In this Night Sky Activity, students use a simple indoor Earth-Moon-Sun model to explore and learn about Moon phases and eclipses. Many children (and adults) have misconceptions about what causes the phases of the Moon, and helping them confront those misconceptions with evidence makes this activity pretty enthralling. While it’s pretty easy to see the phases of the Moon in the sky, it’s not possible from our perspective to observe the entire system, which often leads to inaccurate explanations of what’s going on, most commonly that Moon phases are caused by Earth’s shadow. It’s a perfect situation to use a scientific model. Students are challenged to use the model to struggle to figure out, develop understanding of, and explain the phases of the Moon, discuss ideas with others, then adjust their ideas based on evidence from the model. This activity usually includes a lot of big, “aha’s!” as participants encounter evidence while using the model that often contradicts what they previously thought was going on.

Students learn about the Earth's only natural satellite, the Moon. They discuss the Moon's surface features and human exploration. They also learn about how engineers develop technologies to study and explore the Moon, which also helps us learn more about the Earth.

This is an educational video on preparing to infuse your medication using Elastomeric pump. Before you begin, it is very important to keep your hands and work surfaces clean, avoid touching sterile surfaces with your hands, and preparing and using materials as instructed to avoid a serious infection and ensure proper infusion of medication.Elastomeric pump set-up 

STEM in 30 celebrates the 2017 Great American Eclipse live from Liberty, Missouri, in the path of totality, and at the Phoebe Waterman Haas Public Observatory at the Museum in Washington, DC.

Astronaut Randy Bresnik will have a unique view as he watches from space. In this episode of ISS Science, find out how the ISS crew will watch and learn how to build your own eclipse.

This lesson investigates the alignment of the Earth, the Moon, and the Sun during a solar eclipse and model that alignment with classroom materials.

How can you safely view the August 21 solar eclipse? What is a solar eclipse? Where can you see this upcoming eclipse?