2020 6-ESS1-4

Page history last edited by Heather Johnston 4 years, 10 months ago

The Oklahoma Academic Standards for Science (OAS-S) are three-dimensional performance expectations representing the things students should know, understand, and be able to do to be proficient in science and engineering. Performance expectations are considered standards and include a science and engineering practice (indicated in blue and represent everyday skills of scientists and engineers), disciplinary core ideas (represented in orange and represent science ideas used by scientists and engineers), and a crosscutting concept (indicated in green and represent ways of thinking like scientists and engineers).

Each dimension in the OAS-S grows in complexity and sophistication across the grades. To learn more about the prior knowledge and skills students have developed (or future knowledge/skills) associated with that specific dimension, each section in the standard below is hyperlinked to that specific vertical learning progression page.

6th Grade (6) Earth's Place in the Universe
6.ESS1.4 Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s geologic history.
Clarification Statement: Emphasis is on analyses of rock formations and fossils they contain to establish relative ages of major events in Earth’s history. Scientific explanations can include models to study the geologic time scale.
Assessment Boundary: Assessment does not include recalling the names of specific periods or epochs and events within them.
Science and Engineering Practices	Disciplinary Core Ideas	Crosscutting Concepts
Constructing Explanations Construct an explanation based on valid and reliable evidence obtained from a variety of sources (including students’ own investigations, models, theories, simulations, peer review) and the assumption that theories and laws that describe the natural world operate today as they did in the past, and will continue to do so in the future.	The History of Planet Earth The geologic time scale interpreted from rock strata provides a way to organize Earth’s history. Major historical events include the formation of mountain chains and ocean basins, the adaptation and extinction of particular living organisms, volcanic eruptions, periods of massive glaciation, and development of watersheds and rivers through glaciation and water erosion. Analyses of rock strata and the fossil record provide only relative dates, not an absolute scale.	Scale, Proportion, and Quantity Time, space, and energy phenomena can be observed at various scales using models to study systems that are too large or too small.
Connections to other Performance Expectations in Grade 6
Energy Flow and Earth Processes