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Transcript of Stellar Evolution Key Vocabulary Comprehension Strategies Resources EXIT AssessmentTeacher Page...
Stellar Evolution
Key Vocabulary
Comprehension Strategies
Resources
EXIT
AssessmentTeacher Page
Physics for 11th gradeBy James Johnson
Central Questions
Central QuestionsCentral Questions
1.1. Describe the life cycle of a star, Describe the life cycle of a star, from birth on through death.from birth on through death.
2.2. How do planetary systems form How do planetary systems form and how is it related to stellar and how is it related to stellar birth?birth?
3.3. What internal processes keep stars What internal processes keep stars alive?alive?
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ResourcesResources
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Non-Fiction Books
Fiction Books
Textbook
Magazine and Journal Articles
Websites and Webquests
Video and Media
Non-Fiction BooksNon-Fiction Books
Taschek, K. (2006). Taschek, K. (2006). Death Stars, Death Stars, Weird Galaxies, and a Quasar-Weird Galaxies, and a Quasar-Spangled Universe: the Discoveries Spangled Universe: the Discoveries of the Very Large Array Telescope.of the Very Large Array Telescope. Albuquerque: University of New Albuquerque: University of New Mexico Press.Mexico Press.
Clark, S. (2005). Clark, S. (2005). Journey to the Journey to the Stars. Stars. Oxford University Press.Oxford University Press.
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Fiction BooksFiction Books
Reisman, M. (2008).Reisman, M. (2008). Simon Bloom: Simon Bloom: The Gravity Keeper.The Gravity Keeper. New York: New York: Penguin Group.Penguin Group.
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TextbookTextbook
Chapter 26: Exploring the Universe. Chapter 26: Exploring the Universe. In Wysession, M., Frank, D., & In Wysession, M., Frank, D., & Yancopoulos, S. (2004). Yancopoulos, S. (2004). Physical Physical Science: Concepts in Action.Science: Concepts in Action. (pp. (pp. 827-855). Upper Saddle River, NJ: 827-855). Upper Saddle River, NJ: Prentice Hall.Prentice Hall.
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Magazine and Journal Magazine and Journal ArticlesArticles
Naeye, R. (2008, November). Red Giant Shock Naeye, R. (2008, November). Red Giant Shock Breakout. Breakout. Sky & TelescopeSky & Telescope, , 116116(5), 30-30.(5), 30-30.
Schröder, K., & Connon Smith, R. (2008, Schröder, K., & Connon Smith, R. (2008, May). Distant future of the Sun and Earth May). Distant future of the Sun and Earth revisited. revisited. Monthly Notices of the Royal Monthly Notices of the Royal Astronomical SocietyAstronomical Society, , 386386(1), 155-163. (1), 155-163.
Shepherd, D. (2007, June). STELLAR Shepherd, D. (2007, June). STELLAR ORIGINS: From the Cold Depths of Space. ORIGINS: From the Cold Depths of Space. (Cover story). (Cover story). Sky & TelescopeSky & Telescope, , 113113(6), 26-30. (6), 26-30.
Yeager, A. (2008, October 11). Dead--but not Yeager, A. (2008, October 11). Dead--but not duds. duds. Science NewsScience News, , 174174(8), 26-28. (8), 26-28.
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Websites and WebquestsWebsites and Webquests http://http://www.astro.uva.nl/demo/sun/kaft.htmwww.astro.uva.nl/demo/sun/kaft.htm http://www.espace.gc.ca/eng/educators/resources/asthttp://www.espace.gc.ca/eng/educators/resources/ast
ronomy/module2/content.aspronomy/module2/content.asp http://http://
www.pbs.org/wgbh/nova/universe/supernova.htmlwww.pbs.org/wgbh/nova/universe/supernova.html http://www.astronomy.org/astronomy-survival/solformhttp://www.astronomy.org/astronomy-survival/solform
.html.html
http://www.sciencedaily.com/releases/2008/10/08100http://www.sciencedaily.com/releases/2008/10/081002172445.htm2172445.htm
http://http://zebu.uoregon.edu/~soper/Stars/hrdiagram.htmlzebu.uoregon.edu/~soper/Stars/hrdiagram.html http://physics.gmu.edu/~jevans/astr103/CourseNotes/http://physics.gmu.edu/~jevans/astr103/CourseNotes/
ECText/ch17_txt.htm#17.4.1ECText/ch17_txt.htm#17.4.1 Webquest: Webquest:
http://www.can-do.com/uci/ssi2003/starlife.htmlhttp://www.can-do.com/uci/ssi2003/starlife.html For annotations, click here.For annotations, click here.
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Video and MediaVideo and Media
http://instruct1.cit.cornell.edu/courshttp://instruct1.cit.cornell.edu/courses/astro101/java/evolve/evolve.htmes/astro101/java/evolve/evolve.htm
Nova: Death of a Star, Nova: Death of a Star, WGBH-TV.WGBH-TV.(2006).(2006).
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Key VocabularyKey Vocabulary White dwarf-White dwarf- low mass star low mass star
that has stopped thermonuclear that has stopped thermonuclear reactions and has shrunk to the reactions and has shrunk to the size of the Earth.size of the Earth.
Red giant- Red giant- large, cool star of large, cool star of high luminosity.high luminosity.
Supernova(e)-Supernova(e)-stellar stellar outburst during which a star outburst during which a star increases its brightness roughly increases its brightness roughly a millionfold.a millionfold.
Planetary nebula-Planetary nebula- luminous shell of gas ejected luminous shell of gas ejected from an old, low-mass star.from an old, low-mass star.
Nuclear fusion- Nuclear fusion- the the combining of nuclei under high combining of nuclei under high temperatures in a process that temperatures in a process that releases energy.releases energy.
H-R diagram- H-R diagram- plot of plot of luminosity of stars against their luminosity of stars against their surface temperature.surface temperature.
Radiation pressure-Radiation pressure- pressure exerted by radiation pressure exerted by radiation due to nuclear fussion.due to nuclear fussion.
Main sequence-Main sequence- grouping grouping of stars on the H-R diagram of stars on the H-R diagram extending diagonally across extending diagonally across the graph from hot, luminous the graph from hot, luminous to cool, dim stars.to cool, dim stars.
Luminosity- Luminosity- rate at which rate at which light is emitted from a star.light is emitted from a star.
Black hole-Black hole- object whose object whose gravity is so strong that the gravity is so strong that the escape speed exceeds the escape speed exceeds the speed of light.speed of light.
Protostar- Protostar- star in earliest star in earliest stage of formation.stage of formation.
Accretion disk- Accretion disk- disk of disk of gas orbiting a star or black gas orbiting a star or black hole.hole. Back to Map
Comprehension Comprehension StrategiesStrategies
Connecting to Background Knowledge
Questioning
Making Inferences and Predicting
Organizing/Summarizing
Vocabulary
Monitoring Comprehension
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QuestioningQuestioning
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Long Strategy: Question Starters
Short Strategy: Strategy: Questioning the authorComprehension Area: QuestioningLiterature Source: http://www.sciencedaily.com/releases/2008/10/081002172445.htmObjective: This strategy is used in order to develop students’ critical thinking of the texts that they read. By questioning the author about the content, possible bias, etc, students can gain a deeper understanding of the topic being discussed.Overview: After having modeled the behavior using a think aloud with a similar article, students will read the article and write down any questions that they may have for the author about the message and intent. After they read students will come up with answers to their question. Finally, the class will discuss their questions and the answers that they came up with in order to get a fuller understanding of the content of the article.
Connecting to Background Connecting to Background KnowledgeKnowledge
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Long Strategy: Connection Cue Cards
Short Strategy:Strategy: PReP Reading PlanComprehension Area: Connecting to background knowledgeLiterature Source: Death stars, weird galaxies, and a quasar-spangled universe: the discoveries of the Very Large Array telescope. Taschek, Karen (2006)Objective: Students will access their prior knowledge about the life of stars before reading the book. This will encourage greater comprehension.Overview: Students will share their ideas about how stars die and the consequences there of. This will be accomplished by the teacher asking questions about the death of stars, supernovae, and black holes in general. Students will then compare their own ideas to those of the rest of the class and form predictions about what they will be reading. This also allows the teacher to
identify the students’ level of understanding.
Making Inferences and Making Inferences and PredictingPredicting
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Long Strategy: Cause and Effect Timeline
Short Strategy: Strategy: Cloze ConnectionsComprehension Area: Making Inferences and/or PredictingLiterature Source: Journey to the Stars by Stuart Clark (2005), pp. 55-60.Objective: Students will use their previous knowledge to make inferences in a text with phrases missing. They will also learn habits for figuring out vocabulary in context.Overview: Before class, the teacher finds important words and phrases in the text and removes them. In the place of the words, lines will be there for the students to fill in. Some of the sections are simply a single word, while others are longer phrases. These longer sentences are inferences that the students will have to make. When the students make their inferences, have them underline words and phrases that they used to make those inferences. Have the class share their inferences and the evidence that they used.
Organizing/SummarizingOrganizing/Summarizing
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Long Strategy: Three-Column Notes
Short Strategy: Strategy: Outline-ish ThoughtsComprehension Area: Organizing/SummarizingLiterature Source: Naeye, R. (2008, November). Red Giant Shock Breakout. Sky & Telescope, 116(5), 30-30.Objective: Students will practice developing outlines in order to organize information gathered from reading the article on red giants.Overview: After the students have read the article, the class will create an outline for the reading. This will be achieved by providing the class with a partially completed graphic organizer containing headings and subheadings relevant to the article. This organizer will be completed by the students in small groups.
VocabularyVocabulary
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Long Strategy: Vocab Journal
Short Strategy: Strategy: Quick DrawComprehension Area: VocabularyLiterature Source: Physical Science: Concepts in Action. Wysession, Frank, Yancopoulos. (2004) pp. 846-855.Objective: Students will find new vocabulary and its meaning, and then show their understanding of the new words by creating a graphic and having the rest of the class guess which of the new words the picture represents.Overview: This is similar to the game Pictionary. After reading the text and identifying new vocabulary words, the students will compile a class list and discuss possible meanings for the words. Using teams, students will draw the new words and their team must try to guess the word. This will demonstrate the students’ understanding of the new vocabulary.
Monitoring Monitoring ComprehensionComprehension
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Short Strategy: Strategy: RATA
Comprehension Area: Monitoring Comprehension
Literature Source: Schröder, K., & Connon Smith, R. (2008, May). Distant future of the Sun and Earth revisited. Monthly Notices of the Royal Astronomical Society, 386(1), 155-163.
Objective: This strategy is basically a think-aloud. As I read the article aloud, I will make sure to stop and ask questions at points that may be difficult or present a new vocabulary word. Short summaries and interjections of thoughts could also be utilized.
Overview: This strategy models what students should do when being actively engaged with the material they are reading. It helps students connect to background knowledge and to think about what they are reading. It also helps show students that it is okay to stop and ask a question in the middle of a text. All of the above help to develop a deeper understanding of the content.
Monitoring Comprehension II
Monitoring Monitoring Comprehension IIComprehension II
Short Strategy:Strategy: Read Aloud Everything
Comprehension Area: Monitoring Comprehension
Literature Source: http://zebu.uoregon.edu/~soper/Stars/hrdiagram.html
Objective: Students will concentrate more on the reading since they will be more actively involved while reading. This will lead to deeper understanding of the content.
Overview: This strategy is quite easy to do; students simply read everything aloud. This requires greater focus on the material thus leading to more undrestanding. A follow up discussion will verify that students have comprehened the material.
Back to Strategies Monitoring Comprehension
AssessmentAssessment
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During Unit After Unit• Writing to Learn with a novel. Follow the directions given in this Podcast.
•After the unit students will be given a timeline sheet similar to the one used in the Cause and Effect timeline strategy. They will fill out three more timelines for stars of different masses indicating the various stages of stellar evolution.
•Students wil be graded on the completeness of their Vocab Journals begun in the strategy listed previously and continued throughout the unit.
• Students will keep a blog as a star of a given mass. As each step of stellar evolution is discussed, they will post about how that stage of evolution is manifested in their star.
• Students’ learning of vocabulary will be assessed using the Quick Draw strategy described in the strategy section.
• Students will be assessed following the Connection Cue Cards lesson. They will be assessed based upon completion of their cards as well as thoroughness.
Teacher PageTeacher PageScience Standards
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C.12.7 : Evaluate articles and reports in the popular press, in scientific journals, on television, and on the Internet, using criteria related to accuracy, degree of error, sampling, treatment of data, and other standards of experimental design.
E.12.3 : Using the science themes, describe theories of the origins and evolution of the universe and solar system, including the earth system as a part of the solar system and relate these theories and their implications to the geologic time on earth.
Reading StandardA.12.1: Use effective reading strategies to achieve their purposes in reading.
•Apply sophisticated word meaning and word analysis strategies to understand unfamiliar words.
•Gather information to help achieve understanding when the meaning of a text is unclear.
•Explain and evaluate the influence of format on the readability and meaning of a text.