Chief engineer Thomas J. Kelly gives a firsthand account of designing, building, testing, and flying the Apollo lunar module. It was, he writes, an aerospace engineer s dream job of the century. Kelly s account begins with the imaginative process of sketching solutions to a host of technical challenges with an emphasis on safety, reliability, and maintainability. He catalogs numerous test failures, including propulsion-system leaks, ascent-engine instability, stress corrosion of the aluminum alloy parts, and battery problems, as well as their fixes under the ever-present constraints of budget and schedule. He also recaptures the exhilaration of hearing Apollo 11 s Neil Armstrong report that The Eagle has landed, and the pride of having inadvertently provided a vital lifeboat for the crew of the disabled Apollo 13."
"These assessment tools make progress in writing as transparent, concrete, and obtainable as possible and put ownership for this progress into the hands of learners, allowing students and teachers to work toward a very clear image of what good writing entails." -Lucy Calkins, Writing Pathways Lucy Calkins' groundbreaking performance assessments offer instructional tools to support continuous assessment, timely feedback, and clear goals tied to learning progressions that have been aligned with world-class standards. Originally published as part of the bestselling Units of Study in Opinion/Argument, Information, and Narrative Writing, grades K-8, Writing Pathways is ideal for writing workshop, but suitable for any writing instruction context or curriculum. This practical guide includes: Learning progressions for opinion/argument, information, and narrative writing, which map the specific benchmarks students will master for every grade level On-demand writing prompts that support schoolwide performance assessment Student checklists to help students set goals and integrate crucial self-assessment into their work Rubrics to support individual teachers and professional learning communities as they evaluate mastery and V&A Pattern: Box-set II: Set 2 free pdf plan instruction within and across grade levels Student writing samples that illustrate different ways students have exemplified standards and highlight essential features of each writing genre Annotated exemplar pieces of writing on the same topic for every grade level that highlight the traits you can expect to see at each level of the learning progressions. Who needs Writing Pathways? Educators who are not yet ready to implement the full Units of Study curriculum can use Writing Pathways to get started with Lucy Calkins' proven approach to writing assessment and instruction. Coaches and administrators who are supporting implementation of Lucy Calkins' Units of Study will find Writing Pathways to be an ideal resource to guide their work. Who doesn't need Writing Pathways? The content in this stand-alone edition is the same as in the previous editions found in Lucy Calkins' Units of Study (K-5 and 6-8 are combined in this new edition). Teachers who have the Units of Study do not need this new edition.
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