中五 · 复习
积分,复习笔记
积分的精要复习笔记,每一项内容标准、考试公式,以及如何复习才能得分。
需要复习什么
本笔记涵盖积分,中五SPM高级数学第3章。本章由4项内容标准构成,下表列出每一项要求你掌握的能力。
逐项复习:理解概念、掌握方法、反复练习直到解题成为本能。由于SPM评分是分析式的,清晰有序的步骤能在最终答案出错时仍保住分数,因此把整洁的排版当作复习的一部分。
内容标准
| 代码 | 内容标准 | 你必须掌握的 |
|---|---|---|
| 3.1 | 积分作为微分的逆运算 | Explain the relation between differentiation and integration. |
| 3.2 | 不定积分 | Derive the indefinite integral formula inductively.; Determine indefinite integral for algebraic functions. The following integrations need to be involved: (a) (b); Determine indefinite integral for functions in the form of , where a and b are constants, n is an integer and n 1.; Determine the equation of curve from its gradient function. |
| 3.3 | 定积分 | Determine the value of definite integral for algebraic functions.; Investigate and explain the relation between the limit of the sum of areas of rectangles and the area under a curve. When n approaches , x approaches 0, area under the curve = =; Determine the area of a region. The meaning of the positive and negative signs for the value of area needs to be discussed. Area of region between two curves needs to be involved.; Investigate and explain the relation between the limits of the sum of volumes of cylinders and the generated volume by revolving a region. When n approaches , x approaches 0, generated volume = = When n approaches , approaches 0, generated volume = =; Determine the generated volume of a region revolved at the x-axis or the y-axis. Generated volume for region between two curves is excluded. |
| 3.4 | 积分的应用 | Solve problems involving integration. PERFORMANCE STANDARDS PERFORMANCE LEVEL DESCRIPTOR 1 Demonstrate the basic knowledge of integration. 2 Demonstrate the understanding of integration. 3 Apply the understanding of integration to perform simple tasks. 4 Apply appropriate knowledge and skills of integration in the context of simple routine problem solving. 5 Apply appropriate knowledge and skills of integration in the context of complex routine problem solving. Apply appropriate knowledge and skills of integration in the context of non-routine problem solving in a creative manner. LEARNING AREA STATISTICS TOPIC |
如何为分数而复习
本章的位置,以及顺序为何重要
积分是中五课程的第3章,而高级数学更青睐按课程顺序复习、而非跳到看起来最难部分的学生。几乎每一章都倚赖中四的代数,移项、处理函数、干净地运算指数与根式,因此若其中任何一项不稳,花一小时把它夯实,会在积分以及之后的一切中都得到回报。
复习本章时,随手记下任何你不得不回查的旧技能:这份笔记就是值得修补的基础地图。稳健的复习计划不是一口气冲完全部4项标准,而是短而规律的多次学习:复习一项标准,几天后自测,只有当你能不看笔记复现方法时才继续下一项。
老师如何帮助积分
笔记与练习能让学生走很远,但积分正是那种"第二双眼睛"能把"大致会"变成"稳定会"的章节。一对一时,老师边做边看你的解题,捕捉出错的确切一步,某处漏了符号、某处忘了条件、公式用对了地方却用错了方法。
这是书本上的标准答案永远做不到的,因为错误发生在动手时,而非阅读时。由于积分建立在前面的章节之上,老师还能发现真正的缺口其实不在积分,而在它默认掌握的某项中四技能,从而先重建它,让新内容终于扎根。
每一堂课的重点都相同:理解概念、展示方法,并把步骤写得足够清晰,即便某天最终答案出错也能得分。课程为一对一在线、以英文进行,老师会围绕孩子在积分上的确切水平来安排每一节,从重建薄弱基础到冲刺A+。
由于老师面对的是一名学生而非三十名,节奏由理解而非教学进度表决定:五分钟就领会的概念不会被拖沓,一时未领会的则会给足所需时间,而不是为了让全班往前赶而被撇下。
这一切都不取代本站的笔记、例题与练习,而是让它们发挥更大的作用。读过积分笔记、做过练习的学生,会带着真实的疑问而非一张白纸走进课堂,而针对这些疑问的一小时教学,远胜于用一小时讲解课本已经写明的内容。
这正是我们希望学生把两者结合使用的方式:在这里学习材料,留意它在何处开始讲不通,然后把那一点带给能够彻底弥合缺口的老师。
获取一对一辅导。
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