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They cant because they are driven insane by school politics, disrespectful kids, horrible parents, overwhelming workloads, unnecessary paperwork and terrible pay in many places.
All of this was "explained" to me when I was in the 10th grade. I didn't get it. Explanation lacked something. Then it was explained again in College. I memorized something that got me thru. Then it was explained again by a VERY GOOD math treacher in Grad School. I remembered only what I had previously memorized and got thru with no "picture" in my mind to match what I was doing. This, for the first time in 50 years, makes it utterly clear. Thankfully, I no longer use math everyday in my work...but it will be nice to die knowing that one more mystery has been removed. THANK YOU.
The same thing with me. In my mind there are two different values of pi, one value is 3.14 which is used to calculate circumference and surface of the circle, and the second used to determine angles.
why is this channel so underrated? you guys are doing some certainly worth things... keep it up you are helping a lot of 11th grade PCM students like me..
I joined a new school with a completely different kind of teaching and my physics teacher automatically assumed that I knew what a radian was when I really didn't. Thank you so much Don'tMemorise.
Mathematics is a subject that shouldn't involve memorization but logically sound arguments. Your videos are truly amazing and you live up to the name of your channel. After watching your videos, indeed there's nothing to memorize but remember everything naturally by understanding the concept in depth, with utmost clarity. THANK YOU!
omfg, just can't believe that i learnt radians, i was literally crying yesterday that i dont know radians, i can't do anything in my life, thank you so so so much
It's one thing understanding math for your self and another teaching others and making them understand the bigger picture . Two different skill sets right there and this teacher does a pretty good job.
I'm glad that our content is so helpful to you, Thomas! Please subscribe and press the bell icon to never miss a video: bit.ly/DontMemoriseRU-vid Happy Learning :)
Thank you so much for explaining this concept so vividly. I was having difficulty in understanding this concept but this video helped me a lot. Once again, thank you!😊
VERY GOOD DEMONSTRATION. INFACT IT IS EASY TO UNDERSTAND A COMPLICATED TOPIC WHEN IT IS EXPLAINED IN A VERY SIMPLE WAY. MOST PEOPLE DON'T HAVE THE CAPACITY OF TEACHING IN A VERY SIMPLE AND ATTRACTIVE MANNER. YOU HAVE GOT THE CAPACITY. GOOD , VERY GOOD.
The way you teach is the learning for all teachers , your one video of few minutes can change the prospective of students for learning , keep it up ma, m.
This is the first thing I’ve seen that actually helped me learn what a radian is! Everything, or everyone else was just talking about how it’s more “natural” of a measurement, without actually showing how a radian is measured
I'm a high school dropout who owns a manufacturing business with 68 employees . We primarily manufacture aerospace / aircraft components . I wish I would have had a teacher like you in high school . Thanks for your video .
I believe there are 360 degs in a circle because the ancients thought, incorrectly, that the earth circled the sun in 360 days. Each degree represented a day's journey around the sun.
It does not end there. A nautical mile is 1 second of arc. 60 seconds = 1 minute of arc and 60 minutes = 1 degree and 360 degrees is the circle. A good approximation to the circumference of the geodesic shaped earth. With regards to the 360 day year, a nice proposition. This would have occurred before the current civilisation.
The 360-day year is a long-standing myth; it's not hard to construct something that produces the same shadow or beam every 365 days (plus a few hours), and a lot of major and minor civilizations did just that. Astronomy was fairly well advanced by the ancients (because it tied into astrology and understanding the gods' intentions for us mortals) such that some could predict lunar eclipses at least by 750 BCE and solar eclipses at least by 585 BCE. Instead, several peoples (possibly starting with the Mesopotamians) had a base-60 number system (compared to our current base-10) as it could be easily divided by 1, 2, 3, 4, 5, 6, 10, and 12, the latter important because it's the approximate number of lunar months in a year. This made a lot of calculations easy with fine detail but without over-encumbering the math.
@@eagle6769 The Earth has always tilted. It has a 23.5 degree tilt now. Earth's tilt has nothing to do with the time it takes to go around the sun, which is what defines the length of a year.
My highschool teacher glossed over this and did a really poor job of explaining it so I never really understood it. My current course is dealing with radians so I decided to check out some online content and 3 minutes later I have a far deeper understanding than I ever had after a unit of study in school.
They still missed an important conceptual point: radians are defined as the *ratio* between a circumferential segment and its radius, which is more practical than merely knowing "1 radian ~ 57.2 deg".
The only video that made me understand the concept of radians. Keep up the good work. The way you have explained the concept had forced me to subscribe you channel. Thank you very much
ANTONIO KASABOV THIS DEMONSTRATION IS NOT MEANT FOR YOU DEAR. YOU ARE AN EXCEPTIONALLY WISE PERSON WITH OCEAN ON KNOWLEDGE HELD INSIDE YOUR SKULL. BE LITTLE TOLERANT AND TRY NOT TO DEMORALIZE THIS NICE YOUNG LADY..AFTER ALL YOU DON'T NEED TO SPEND MONEY TO BE MODEST .
I'm glad that our content is so helpful to you! Please subscribe and press the bell icon to never miss a video: bit.ly/DontMemoriseRU-vid Happy Learning :)
ki kus that’s not always true. People are bad at math because they have a bad experience with it, and that’s most likely because of the way the teacher teaches the curriculum and interacts with one another.
@krishankant I learn much better when the studying environment is good for me (for example a quiet place make me study 10x better than in my annoying super noisy class), and I also affected how the teacher teach a subject (just compare this video to some teacher that told you it's an iron rule to memorize that 1 rad is 180°/π), everyone got some different factor that affect their studying efficiency.
Your explanation is nice...but you also missed 1 logic.....what about the 0.28% arc......you neglected it...it may show large differences for large circles..hope you wil try to explain
A circle has 360 degrees because 360 is a multiple of 12 and thus easier to divide into halves, thirds, fourths, sixths and even twelfths. The same reason a day is divided into 24 hours, an hour into 60 minutes and a minute into 60 seconds. All of these are multiples of 12 and share the property of easy fractions. The Sumerians were the first civilization to realize this iirc. It isn't arbitrary.
You're most welcome Mugdha. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos : )
I'm 54 years old. I am a Science graduate from India. I read these about 36 years ago. Now, I think I understand better than what I understood at that time. Thanks. You are awesome and doing a wonderful service by uploading such videos.
A very convincing explanation regarding radians and degrees. I have been going through various explanations on this topic , never did l come across such a lucid and clear explanation as mentioned here.
This is the way they should teach in all schools in India. That was fantastic demonstration of your understanding of the subject. Thank you and may the good Lord bless you. Joseph
