On any of the presentation prepared earlier add all the options available under "Effect and Timing Tabs" of Effect Options. Use Play and Slide Show Buttons to see the animation effects and note down any two differences between them: Play Button Slide Show Button
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A presentation is a set of slides that you present to people in a group while each page of a PowerPoint presentation is called a slide.
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Assessments, understood as tools for tracking what and how well students have learned, play a critical role in the classroom. Developing Assessments for the Next Generation Science Standards develops an approach to science assessment to meet the vision of science education for the future as it has been elaborated in A Framework for K-12 Science Education (Framework) and Next Generation Science Standards (NGSS). These documents are brand new and the changes they call for are barely under way, but the new assessments will be needed as soon as states and districts begin the process of implementing the NGSS and changing their approach to science education.