Astronomy Lecture 2: Lives of the Stars

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In this second lecture of three in the Frontiers of Science unit on astronomy, Columbia University professor David Helfand explores the life history of a star, a biography encompassing millions of years, and how astrophysicists are able to trace stellar evolution. A lecture video and companion PowerPoint presentation are also available on FoSO.

Astronomy Lecture 2: Lives of the Stars

Discipline:
Resource type:

Lives of the Stars

In this second lecture video of three in the Frontiers of Science unit on astronomy, Columbia University professor David Helfand explores the life history of a star, a biography encompassing millions of years, and how astrophysicists are able to trace stellar evolution. A lecture transcript and companion PowerPoint presentation are also available on FoSO.

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Astronomy Lecture 2: Lives of the Stars

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Whirlpool galaxy (M51) and companion galaxy.

In this PowerPoint presentation, the second of three in the Frontiers of Science unit on astronomy, Columbia University professor David Helfand explores the life history of a star, a biography encompassing millions of years, and how astrophysicists are able to trace stellar evolution. A lecture video and transcript are also available on FoSO.

Astronomy Final Exam

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Exam Hertzprung-Russell diagram.

This exam consists of 11 questions related to the astronomy materials presented in Frontiers of Science. The document provided here contains the questions and associated figures, while the answers are provided in a separate document. Each question requires students to apply their understanding of both content and the scientific habits of mind learned in the astronomy unit. (Note: We provide the exam questions and answers to guide instructors in designing their own assessments. Since this Web site is freely accessible to anyone, including students, we recommend revising these questions to suit your own course content.)

Astronomy Final Exam

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Theoretical equilibrium temperature as a function of distance from star.

This exam consists of 11 questions related to the astronomy materials presented in Frontiers of Science. The document provided here contains answers, while the full questions and associated figures are provided in a separate handout-ready document. Each question requires students to apply their understanding of both content and the scientific habits of mind learned in the astronomy unit. (Note: We provide the exam questions and answers to guide instructors in designing their own assessments. Since this Web site is freely accessible to anyone, including students, we recommend revising these questions to suit your own course content.)

Biodiversity Seminar 3

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Lake Victoria

This document serves as a teaching guide for the third of three seminars in a unit on biodiversity. This seminar focuses on invasive species in order to underscore the difficulties of managing and restoring ecosystems and the potential damage of intended or unintended manipulation. As explained in the corresponding lecture, biodiversity theory can explain the causes and consequences of biodiversity loss and provides recommendations for mediating the sixth global extinction event and thus ensuring the availability of ecosystem services, the health of the biosphere, and the quality of human life. The guide includes an overview, reading list, and step-by-step seminar plan, including suggested discussion questions, activities, and reference to assignments. Related seminar activities and assignment questions are provided in accompanying files.

Biodiversity Seminar 1b

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Depletion of fish stocks.

This teaching guide provides ideas for an alternative or additional seminar to include in a unit on biodiversity. The topics included in this guide are related to species decline in aquatic ecosystems. The guide contains an overview of the seminar, a reading list, and a step-by-step seminar plan, including suggested discussion questions, activities, and references to associated assignments. The related assignment questions are provided in an accompanying file.

Biodiversity Seminar 1

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This document serves as a teaching guide for the first of three seminars in a unit on biodiversity. This seminar focuses on global issues affecting biodiversity, including land and water use, greenhouse gases, decline of species, and emerging infectious diseases. The guide includes an overview, reading list, step-by-step seminar plan, and suggested discussion questions. The main seminar activity (an interrupted case study about bird populations in fragmented habitats) and assignment questions, which are described in the guide, are provided in related files.

Wombats and Bees

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Butterfly, bird, and plant declines.

This assignment requires students to consider data related to diversity in local animal populations. Students will apply their understanding of samples, populations, and statistics to data from several different published studies of biodiversity. This document serves as a student handout; an answer key is provided in an accompanying document.

Wombats and Bees

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Fruit-set effect sizes of pollen-supplementation experiments, North America.

This assignment requires students to consider data related to diversity in local animal populations. Students will apply their understanding of samples, populations, and statistics to data from several different published studies of biodiversity. This document serves as an answer key; a student handout is provided in an accompanying document.