IB DP Maths: AA SL复习笔记3.4.2 Exact Values
Trigonometry Exact Values What are exact values in trigonometry? For certain angles the values of sin θ, cos θ and tan θ can be written exactly This means using fractions and surds You should be fa...
IB DP Maths: AA SL复习笔记3.4.1 The Unit Circle
Defining Sin, Cos and Tan What is the unit circle? The unit circle is a circle with radius 1 and centre (0, 0) Angles are always measured from the positive x-axis and turn: anticlockwise for positi...
IB DP Maths: AA SL复习笔记3.3.3 Applications of Trigonometry & Pythagoras
Bearings What are bearings? Bearings are a way of describing and using directions as angles They are specifically defined for use in navigation because they give a precise location and/or direction...
哪些U.S News排名下降的美国学校，申请呈增长趋势？
打算赴美国留学的同学，很多将U.S NEWS美国大学排名作为选校的重要参考依据。但是有些学校虽然排名下跌，但却热度不减！例如，南加州大学在近10年的U.S.NEWS美国大学排名中下跌了5位，但申请的学生呈增长趋势，录...
美国中小学生数学国际竞赛盘点！
如今“爬藤”越来越难，光光有SAT已经入不了藤校招考官的法眼，还必须要有一些差异化的加分项。而美国各阶段的数学学术活动成绩不失为体现孩子数学实力的重要证明。美国各类中小学生数学国际学术活动有哪些？ 袋鼠...
IB DP Maths: AA SL复习笔记3.3.2 Non Right-Angled Trigonometry
Sine Rule What is the sine rule? The sine rule allows us to find missing side lengths or angles in non-right-angled triangles It states that for any triangle with angles A, B and C Where a is the s...
统计学方向课题推荐，对应用数学感兴趣的同学看过来！
本周课题导视 统计学方向课题 复杂系统可靠性模型研究单反相机非线性响应曲线的测量与标定方向数据的误差线分析民众政治社会价值观研究世界幸福指数流量明星微博转发链新冠疫情走势预测 1. 复杂系统可靠性模型研...
U.S.News发布文书写作6条语法建议！申请季必看的6条文书写作指南！
转眼7月份已经过去了一半，距离新一轮的申请也不远啦！同学们是不是已经在准备材料了呢？ 每年的文书总会困住不少准留学er。不知道怎么开头的，写到一半没了灵感的，写完觉得不够生动、怕吸引不了招生官眼球的…归...
2022 Nature指数排名出炉！盘点中美英大学表现！
前段时间，2022自然指数年度榜单（Nature Index 2022 annual tables）正式发布！这份榜单展示了不同国家的科研机构，在自然科学领域的高质量科研产出情况。 对于想要在化学、地球与环境科学、生命科学、物理学领...
IB DP Maths: AA SL复习笔记3.3.1 Pythagoras & Right-Angled Triganometry
Pythagoras What is the Pythagorean theorem? Pythagoras’ theorem is a formula that works for right-angled triangles only It states that for any right-angled triangle, the square of the hypotenuse is...
美高专属，比STS更低年级友好！2022 JSHS青少年科学与人文论坛开始报名！
进入Top大学的竞争越发激烈，在美本申请过程中，美高的学生要如何把握优势，充分利用课外活动和参赛机会，增加自己的“申请砝码”？ 之前我们给大家介绍过面向美高学生的科研赛事《再生元科学天才奖STS》。STS的含...
IB DP Maths: AA SL复习笔记3.2.2 Volume & Surface Area
Volume of 3D Shapes What is volume? The volume of a 3D shape is a measure of how much 3D space it takes up A 3D shape is also called a solid You need to be able to calculate the volume of a number ...
