Ahmad
الثلاثاء، 9 أكتوبر 2012
هل ترغب في تعلم الرياضيات بسهولة؟ هل تجد صعوبة في فهم دروس الرياضيات في المدرسة؟ هل تجد شرح وتفسير المعلم مملا وغامضا وغير مفهوم في فهم دروس ودورات الرياضيات؟ إن كانت هذه هي مشاكلك وصعوباتك في الرياضيات سوف يفيدك هذا الفيديو, مجموعة من الدروس المجانية في تعلم الجبر والهندسة وحساب التفاضل والتكامل والمعادلات والدالات بأنواعها, سوف نقدم لك كل ما تحتاجه لاجتياز اختبارات الرياضيات في الباكالوريا والجامعة, لطلبة علوم الرياضيات والعلوم الأخرى المختلفة, كما سوف نشاهد دروس تعليم تقنيات حساب الأعداد الجمع الضرب الطرح والقسم الذهني, سوف تحسب مثل آلة حاسبة بسهولة دون تفكير.
You made me recall my middle school days when I was puzzled by the need of my classmates to always use the same notations and their inability to grasp that all notations are arbitrary and that instead of x, you could use a pictogramme of a monkey dancing around a coconut tree. It does get annoying at times though. E.g. physicists, electrical engineers, and mathematicians use incompatible notations and conventions.
KaiserinAstrid in reply to johncrwarner (Show the comment) 3 months ago
28:05 It can also be said that NO construction can prove the truth of the theorems anyway - so 'proof' arises independently, from the NEED to have just such a demonstration. Theorem-Proof is the next 'big idea'.
paul1964uk 4 months ago
Since my first encounter of this theorem, I cannot find a reason why this is not in our curriculum or syllabus, not until I find out that the focus of modern high school geometry is mostly on the angles and distances in a triangle, and so the basic geometry of lines and points are neglected.
relike868p 5 months ago
i believe that you have righted my ship, glad that you made this video (and the previous one!).
GANMath 5 months ago in playlist Elementary Mathematics (K-6) Explained
You as a professional mathematician and a high end teacher - you need notation to function in your world - that language of notation is not natural in the sense of obvious and non-arbitrary. These are great exploration tasks and great amazement activities and as such the notation can be a drag on that. The trick is to find a way of notation to come about as natural or necessary.
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