BIOLOGICAL EVOLUTION: UNITY AND DIVERSITY Use mathematical representations to support explanations of how natural selection may lead to increases Performance Expectation and decreases of specific traits in populations of species over time. Emphasis is on using mathematical models, probability statements, and proportional reasoning to support Clarification Statement explanations of trends in changes to populations over time. Students should be able to explain trends in data for the number of individuals with specific traits changing over time. Science & Engineering Practices Disciplinary Core Ideas Crosscutting Concepts Asking questions and defining problems ADAPTATION CAUSE AND EFFECT Adaptation by natural selection acting over Phenomena may have more than one cause, and Developing and using models generations is one important process by which some cause and effect relationships in systems can Planning and carrying out investigations populations change over time in response to changes only be described using probability. in environmental conditions. Traits that support Analyzing and interpreting data successful survival and reproduction in the new 5. Using mathematics and computational thinking: environment tend to become more common; those Mathematical and computational thinking in 6-8 that do not become less common. Thus, the builds on K-5 experiences and progresses to distribution of traits in a population changes. identifying patterns in large data sets and using (MS.LS4C.a) mathematical concepts to support explanations and arguments. Use mathematical representations to describe and/or support scientific conclusions and design solutions. Constructing explanations and designing solutions Engaging in argument from evidence Obtaining, evaluating, and communicating information Diocese of Rouge Science Standards: Grade 8 July, 2017 Page 19
BIOLOGICAL EVOLUTION: UNITY AND DIVERSITY Performance Expectation Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations of species over time. Clarification Statement Emphasis is on using mathematical models, probability statements, and proportional reasoning to support explanations of trends in changes to populations over time. Students should be able to explain trends in data for the number of individuals with specific traits changing over time. Science & Engineering Practices Disciplinary Core Ideas Crosscutting Concepts Asking questions and defining problems Developing and using models Planning and carrying out investigations Analyzing and interpreting data 5. Using mathematics and computational thinking: Mathematical and computational thinking in 6-8 builds on K-5 experiences and progresses to identifying patterns in large data sets and using mathematical concepts to support explanations and arguments. Use mathematical representations to describe and/or support scientific conclusions and design solutions. Constructing explanations and designing solutions Engaging in argument from evidence Obtaining, evaluating, and communicating information ADAPTATION Adaptation by natural selection acting over generations is one important process by which populations change over time in response to changes in environmental conditions. Traits that support successful survival and reproduction in the new environment tend to become more common; those that do not become less common. Thus, the distribution of traits in a population changes. (MS.LS4C.a) CAUSE AND EFFECT Phenomena may have more than one cause, and some cause and effect relationships in systems can only be described using probability. Diocese of Rouge Science Standards: Grade 8 July, 2017 Page 19
DBR%20Grade%208%20Science%20standards.docx