In 2017-18, Maryland fully implemented the Maryland State Science Standards. These standards represented a shift in science instruction, and students now delve deeper into concepts through a three-dimensional approach. This three-dimensional approach to science instruction involves the basic science concepts, along with science and engineering practices and cross-cutting concepts that span multiple science contents.

Dimension 1: Science and Engineering Practices

The practices describe behaviors that scientists engage in as they investigate and build models and theories about the natural world and the key set of engineering practices that engineers use as they design and build models and systems.

Dimension 2: Crosscutting Concepts

Crosscutting Concepts describe concepts that bridge disciplinary boundaries, having explanatory value throughout much of science and engineering. These crosscutting concepts have application across all domains of science. They are a way of linking the different domains of science.

Dimension 3: Disciplinary Core Ideas

Disciplinary Core Ideas have the power to focus k–12 science curriculum, instruction, and assessments on the most important aspects of science. disciplinary ideas are grouped in four major domains: the physical sciences; the life sciences; the earth and space sciences; and engineering, technology and applications of science.


Amy O. Towers
Supervisor of Instruction
[email protected]