IGCSE数学好学吗？长春环球教育名师带你领略IGCSE数学的奥妙

　　IGCSE数学好学吗？长春环球教育名师带你领略IGCSE数学的奥妙2020年的庚子鼠年注定了不平凡;一场突如其来的疫情，打乱了所有计划和节奏，但我们所有人坚信全民一心，众志成城，定能打赢这场战役。特此长春环球教育的老师在这个特殊时期特准备一分钟小视频，让各位同学利用碎片化时间学习到有用的知识。

　　为此长春环球教育全体老师相信，没有哪个冬天不会过去，没有哪个春天不会到来，战役必胜!

　　在这个特殊的时期，我们的老师有很多的小知识要与你们分享，一起看看我们的王佳垚老师都说什么了

　　hello， 大家好，我是环球教育长春学校的王佳垚老师，在这个全国上下都在为了我们国家安全和自身安全而隔离的时候，我相信大家在家待的都快发霉了吧因所以我们今天来给大家分享一点数学知识，帮助大家活跃一下脑筋。

　　今天我们要说了是IGCSE 数学中常见的一个考点：

　　the distance between two points in a coordinate plane(两点之间的距离)

　　Actually, determining the distance between two points is just an application of the Pythagorean theorem(毕达哥拉斯定理)

　　For example, there are two points in the coordinate system like this, point A(2，0) and point B(5，4), what is the distance between these two points. As I just said it’s an application of Pythagorean theorem, but I don’t see any triangle here, so maybe we can draw a triangle by ourselves, yes like you see, we can draw a right angle here. From the picture， we can know the distance between A and B, is just the length of the hypotenuse in this triangle, so how can we get this hypotenuse from Pythagorean theorem? Firstly, we can know the length of these two legs are 3and 4 respectively, then we can use the Pythagorean theorem to determine the length of hypotenuse like this, √32+42,yes it is 5, and then we can know the distance between point A and B is 5, too. this the process with numbers, so can we use the variants to try again. Also two points in the coordinate system, like A(x1,Y1),B(x2,Y2), so the formula will change into this form, √(x1-x2)2 +(y1 -y 2)2yes, this is the formula of distance between two points. And in general you want take the larger x-value minus the smaller x-value, but you could do it either way, because it’s the square, so they are the same, no matter use the bigger minus the smaller, or use the smaller minus the bigger, we can get the same result.

　　Can you remember that?

　　王佳垚

　　【头衔】长春环球名师营成员，国际考试数学组组长

　　【教龄】8年

　　【主讲科目】IGCSE数学，A-level数学，SAT数学，GRE/GMAT数学

　　【过往经历】创造无数IGCSE/A-level高分学员奇迹，被大家称为“金牌讲师”，FM100.1《约会班主任》客座嘉宾，吉林教育台《留学帮》栏目嘉宾

　　【授课风格】逻辑缜密，条理清晰。课堂中同时兼备理性与感性的思维，既可以条理清楚，结构严谨的用逻辑力量吸引学生的注意力，也能够把对知识的热爱和追求融于对学生的关心、教导和期望之中，让短暂的师生情化为长久的友谊。

　　以上就是小编为大家介绍的内容，希望对大家有所帮助，想要联系这位老师，直接咨询网站客服老师即可！