深瞳优学 HD vs Calculus

1.智能采集识别试卷 深瞳提供高速批量扫描试卷的服务，通过手机一键控制高速扫描仪。通过智能图像识别技术采集试卷的学生信息和教师批改结果（学号、总分、等第、逐题批改情况…），适应各种书写笔迹（各种铅笔、钢笔、水笔、圆珠笔），无需改变教师一贯以来的批改习惯，无需试卷特殊排版，无需特制答题卡，无需教师参与。灵活适应各类测评卷（总分制、分项评价给分、等第制、分项评价等第、只批对错，不给总评定的日常作业卷或者小测卷） 2.智能学情数据质量分析 深瞳提供四大板块20余种维度的图表数据来支持教师深入观察学生的学习水平和掌握情况，教师们的直觉将遭遇大数据的挑战，考试质量分析结果可以随时随地通过手机查阅。 3.基础数据 教师查阅评测结果数据：包括各班学生总分、等第、卷面逐题逐板块的答题情况的数据。 4.质量分析 帮助学校和教师进行诊断分析，按校际、年级、班级多达10余种维度进行深度分析。可快速了解整体考情、不同板块的考情、各班学生考试成绩与能力的均衡情况分布等等。质量分析板块分析学生的学习水平和老师的教学水平，更为重要的是，课任教师通过分析，有可能发现在一定范围内共同存在的学习错误问题和教学薄弱的方面，对教学存在的问题作出诊断分析，提出改进教学或教学补救的方案。这是教师提高教学能力、促进教师专业自主发展的一种有效措施。 5.试卷分析 分析试卷的质量状态以及组织实施的科学化水平，从试卷难度、区分度、题目层次等角度展开。同时可查看每题正确率和错误原因分布，了解卷中各知识点的达成情况。 6.个体诊断 提供每位参考学生的个性化成绩单，了解该学生定位和知识缺陷，并查看学生错题的订正情况。学生学习困难，就好像身体患病，需要看医生，诊断疾病后再处方治疗。老师应就地取材给患有“学习困难病”的学生，作出诊断并采取教育补救措施。其中方法之一就是分析与研究学生的试卷，看看学生怎么思考、怎么推理、怎么 分析、怎么叙述、怎么选择、怎么导出错误，从而找到学生可能的学习困难所在和可能的先决知识缺陷，尔后采取必要的教育补救措施。有选择地研究那些学习特别困难且需要帮助的学生的试卷，结合平时观察和测验判断，对学生进行因材施教。

Calculus you can see is calculus you can learn. Calculus: Learn & Practice turns a full first-year calculus course into one clear path: build intuition with an interactive animation, follow a worked example step by step, then prove to yourself you've got it with instantly graded practice. WHAT'S INSIDE • 51 interactive concept animations — play, scrub and watch the key change happen instead of imagining it • 119 worked examples with complete solutions, visual hints and the mistakes students usually make • 428 practice problems graded the moment you submit, each with a full solution • Math-history stories with the original problems: Zeno's paradoxes, Archimedes' π, Fermat and Descartes' fight over tangents • Mistake tracking and mastery per concept, so you know exactly what to review • Spaced review that brings a topic back right before you'd forget it • A searchable library of 9 chapters, filterable by topic, tag and difficulty TOPICS COVERED • Limits and continuity • Derivatives and differentials • Applications of derivatives — optimization, related rates, MVT, curve sketching, L'Hôpital's rule, Taylor polynomials • Integrals — FTC, substitution, integration by parts, partial fractions, improper integrals • Applications of integration — area, volume, arc length, work • Differential equations • Infinite series — convergence tests, power series, Taylor series • Multivariable differential calculus — partial derivatives, gradient, tangent planes, Lagrange multipliers • Multiple integrals — double and triple integrals Great for Calculus I and II, AP Calculus AB/BC review, and exam prep. Not covered, so you can decide before you buy: vector calculus (line and surface integrals). TRY IT FIRST Chapter 1 is completely free — animations, examples and practice all work, no time limit and no account. If you like it, one purchase unlocks every chapter forever. No subscription, no ads. Buy once, use on iPhone, iPad and Mac. Your progress stays on your device. Purchases are handled securely by Apple and can be restored anytime. Every lesson, example and problem is available in English, Spanish, French, Portuguese, Japanese, Arabic, Hindi and Chinese. Privacy: https://vaca.vip/advancedmathematics/en/privacy Support: https://vaca.vip/advancedmathematics/en/support