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Tai nghe EncorePro 310 được ra mắt người dùng với tính năng Call Center - hỗ trợ cho các tổng đài viên. Sở hữu thiết kế tai nghe đeo một bên tai cùng khả năng loại bỏ tiếng ồn từ môi trường bên ngoài đầy hiệu quả.

Assessment Guru Grant Wiggins on Measuring Student Progress. All the talk about changing the way we measure student progress raises important questions. What do we mean by assessment - as opposed to grading? How do you design reliable assessments? Should you "teach to" standardized tests? How can you evaluate an individual performance on a cooperative project? And how do we explain it all to parents? To get answers, Instructor senior editor Meg Bozzone interviewed assessment expert Grant Wiggins, president of the nonprofit Center on Learning Assessment and School Structure (CLASS).

Assessment of project based learning remains somewhat of a mystery, because we have few models of assessment systems that match with project-based curricula and student-centered instruction. Our GLEF Agenda advocates for a full spectrum view of assessment, what we call comprehensive assessment. This vacuum around improving assessment limits development of better curriculum and instruction, because assessment drives instruction. What gets measured gets taught. And, as Einstein indirectly observed, it's become too convenient to confine assessment to counting test scores.

On-the-fly conversations regarding students occur on a regular basis among teachers. They have many positive components: conversations are student centered, teachers are supportive of each other and they meet on their own time. However, they are limited and are subject to the interruptions of daily school events, and teacher collaboration is left to chance. These teachers need administrative support to improve the likelihood that their efforts will raise student achievement to a significant degree.

TDS stands for total dissolved solids, and represents the total concentration of dissolved substances in water. TDS is made up of inorganic salts, as well as a small amount of organic matter. Common inorganic salts that can be found in water include calcium, magnesium, potassium and sodium, which are all cations, and carbonates, nitrates, bicarbonates, chlorides and sulfates, which are all anions. Cations are positively charged ions and anions are negatively charged ions.