ABOUT THE SPEAKER
Arthur Benjamin - Mathemagician
Using daring displays of algorithmic trickery, lightning calculator and number wizard Arthur Benjamin mesmerizes audiences with mathematical mystery and beauty.

Why you should listen

Arthur Benjamin makes numbers dance. In his day job, he's a professor of math at Harvey Mudd College; in his other day job, he's a "Mathemagician," taking the stage in his tuxedo to perform high-speed mental calculations, memorizations and other astounding math stunts. It's part of his drive to teach math and mental agility in interesting ways, following in the footsteps of such heroes as Martin Gardner.

Benjamin is the co-author, with Michael Shermer, of Secrets of Mental Math (which shares his secrets for rapid mental calculation), as well as the co-author of the MAA award-winning Proofs That Really Count: The Art of Combinatorial Proof. For a glimpse of his broad approach to math, see the list of research talks on his website, which seesaws between high-level math (such as his "Vandermonde's Determinant and Fibonacci SAWs," presented at MIT in 2004) and engaging math talks for the rest of us ("An Amazing Mathematical Card Trick").

More profile about the speaker
Arthur Benjamin | Speaker | TED.com
TED2009

Arthur Benjamin: Teach statistics before calculus!

Rumus Arthur Benjamin untuk mengubah pendidikan matematika

Filmed:
2,594,147 views

Seseorang selalu bertanya kepada guru/dosen matematika: "Apakah saya akan pakai kalkulus di kehidupan nyata?" Dan bagi kebanyakan dari kita, kata Arthur Benjamin, jawabanya adalah: "Tidak". Arthur Benjamin menawarkan sebuah proposal yang jelas untuk bagaimana menjadikan pendidikan matematika relevan pada era digital ini.
- Mathemagician
Using daring displays of algorithmic trickery, lightning calculator and number wizard Arthur Benjamin mesmerizes audiences with mathematical mystery and beauty. Full bio

Double-click (or triple-click) the English transcript below to play the video.

00:12
Now, if PresidentPresiden ObamaObama
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Sekarang ini, Jika Presiden Obama
00:15
inviteddiundang me to be the nextberikutnya CzarTsar of MathematicsMatematika,
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mengundang saya untuk menjadi Pakar Matematika berikutnya
00:19
then I would have a suggestionsaran for him
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maka saya akan mengajukan sebuah saran untuk beliau
00:22
that I think would vastlysangat improvememperbaiki
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yang menurut saya dapat dengan cepat memperbaiki
00:24
the mathematicsmatematika educationpendidikan in this countrynegara.
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pendidikan matematika di negeri ini.
00:27
And it would be easymudah to implementmelaksanakan
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Dan ide ini akan dengan mudah diimplementasikan
00:29
and inexpensivemurah.
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serta tidak mahal.
00:31
The mathematicsmatematika curriculumkurikulum that we have
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Kurikulum matematika yang kita punya
00:33
is basedberbasis on a foundationdasar of arithmetichitung and algebraaljabar.
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adalah berbasis pada pengantar aritmetika dan aljabar
00:37
And everything we learnbelajar after that
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Dan semua yang kita pelajari setelahnya
00:39
is buildingbangunan up towardsmenuju one subjectsubyek.
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merupakan pengembangan menuju ke sebuah ranah tertentu
00:42
And at toppuncak of that pyramidpiramida, it's calculusKalkulus.
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Dan pada puncak piramida pengembangan itu adalah Kalkulus.
00:46
And I'm here to say
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Dan saya di sini untuk mengatakan
00:48
that I think that that is the wrongsalah summitpuncak of the pyramidpiramida ...
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bahwa menurut saya Kalkulus bukanlah puncak dari piramida pengembangan matematika.....
00:52
that the correctbenar summitpuncak -- that all of our studentssiswa,
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bahwa puncak sebenarnya - yang harus semua siswa kita
00:54
everysetiap hightinggi schoolsekolah graduatelulus should know --
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yang baru lulus Sekolah Menengah Atas harus ketahui
00:56
should be statisticsstatistik:
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seharusnya adalah STATISTIK
00:59
probabilitykemungkinan and statisticsstatistik.
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Peluang dan Statistik
01:01
(ApplauseTepuk tangan)
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(Tepuk tangan)
01:03
I mean, don't get me wrongsalah. CalculusKalkulus is an importantpenting subjectsubyek.
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Maksud saya, jangan salah persepsi, Kalkulus adalah sebuah subjek yang penting
01:07
It's one of the great productsproduk of the humanmanusia mindpikiran.
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Dia adalah salah satu karya terhebat hasil pikiran manusia
01:09
The lawshukum of naturealam are writtentertulis in the languagebahasa of calculusKalkulus.
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Banyak hukum alam ditulis dalam bahasa kalkulus
01:13
And everysetiap studentmahasiswa who studiesstudi mathmatematika, scienceilmu, engineeringteknik, economicsekonomi,
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Dan setiap mahasiswa yang mempelajari matematika, ilmu alam (sains), teknik, ekonomi
01:17
they should definitelypastinya learnbelajar calculusKalkulus
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mereka pasti harus menguasai kalkulus
01:19
by the endakhir of theirmereka freshmanmahasiswa yeartahun of collegeperguruan tinggi.
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sebelum akhir tahun pertama kuliah.
01:21
But I'm here to say, as a professorprofesor of mathematicsmatematika,
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Namun saya di sini untuk mengatakan - sebagai seorang profesor matematika,
01:24
that very fewbeberapa people actuallysebenarnya use calculusKalkulus
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bahwa sangat sedikit orang yang benar-benar mempraktekkan kalkulus
01:28
in a conscioussadar, meaningfulberarti way, in theirmereka day-to-dayhari ke hari liveshidup.
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secara sadar, secara bermakna, dalam kehidupan mereka sehari-hari.
01:31
On the other handtangan,
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Dengan kata lain,
01:33
statisticsstatistik -- that's a subjectsubyek that you could,
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statistik - adalah subyek yang anda bisa
01:36
and should, use on dailyharian basisdasar. Right?
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dan memang seharusnya, anda gunakan dalam keseharian. Betul, kan?
01:39
It's riskrisiko. It's rewardPenghargaan. It's randomnesskeserampangan.
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Statistik adalah resiko, penghargaan, keteracakan
01:42
It's understandingpengertian datadata.
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Statistik adalah tentang mengerti dan memahami data
01:44
I think if our studentssiswa, if our hightinggi schoolsekolah studentssiswa --
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Menurut saya jika para mahasiswa kita, jika para pelajar kita
01:46
if all of the AmericanAmerika Serikat citizenswarga --
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jika semua masyarakat Amerika
01:48
knewtahu about probabilitykemungkinan and statisticsstatistik,
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sudah tahu tentang peluang dan statistik,
01:51
we wouldn'ttidak akan be in the economicekonomis messkekacauan that we're in todayhari ini. (LaughterTawa) (ApplauseTepuk tangan)
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kita semua tidak akan mengalami kekacauan ekonomi seperti sekarang ini
01:54
Not only -- thank you -- not only that ...
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Tidak hanya -- Terima kasih -- tidak hanya itu...
01:57
but if it's taughtdiajarkan properlytepat, it can be a lot of funmenyenangkan.
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[namun] jika subyek ini diajarkan secara tepat, akan sangat mengasyikkan
02:00
I mean, probabilitykemungkinan and statisticsstatistik,
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Maksud saya, peluang dan statistik,
02:02
it's the mathematicsmatematika of gamespertandingan and gamblingperjudian.
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adalah matematika untuk permainan dan spekulasi
02:06
It's analyzingmenganalisis trendstren. It's predictingmemprediksi the futuremasa depan.
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adalah menganalisis kecenderungan (tren). adalah memperkirakan masa depan
02:10
Look, the worlddunia has changedberubah
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Lihat, dunia sudah berubah
02:12
from analoganalog to digitaldigital.
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dari analog ke digital
02:15
And it's time for our mathematicsmatematika curriculumkurikulum to changeperubahan
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Dan sudah waktunya kurikulum matematika kita berubah
02:18
from analoganalog to digitaldigital,
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dari analog ke digital
02:20
from the more classicalklasik, continuouskontinu mathematicsmatematika,
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Dari matematika klasik, matematika kontinu,
02:24
to the more modernmodern, discretediskrit mathematicsmatematika --
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ke matematika modern, matematika diskrit
02:27
the mathematicsmatematika of uncertaintyketidakpastian,
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Matematika ketidakpastian,
02:29
of randomnesskeserampangan, of datadata --
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keteracakan dan data
02:31
that beingmakhluk probabilitykemungkinan and statisticsstatistik.
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dan itu semua adalah ilmu peluang dan statistik.
02:34
In summaryRingkasan, insteadsebagai gantinya of our studentssiswa
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Kesimpulannya, sebagai ganti para pelajar dan mahasiswa kita
02:36
learningbelajar about the techniquesteknik of calculusKalkulus,
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belajar tentang teknik kalkulus,
02:39
I think it would be farjauh more significantpenting
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Saya pikir akan jauh lebih signifikan
02:42
if all of them knewtahu what two standardstandar deviationspenyimpangan
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jika mereka semua tahu apa dua standar deviasi
02:45
from the mean meanscara. And I mean it.
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dari sebuah rata-rata. Dan saya serius akan hal ini.
02:48
Thank you very much.
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Terima kasih.
02:50
(ApplauseTepuk tangan)
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(Tepuk tangan)
Translated by Aswin Indraprastha
Reviewed by Neni Mariana

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ABOUT THE SPEAKER
Arthur Benjamin - Mathemagician
Using daring displays of algorithmic trickery, lightning calculator and number wizard Arthur Benjamin mesmerizes audiences with mathematical mystery and beauty.

Why you should listen

Arthur Benjamin makes numbers dance. In his day job, he's a professor of math at Harvey Mudd College; in his other day job, he's a "Mathemagician," taking the stage in his tuxedo to perform high-speed mental calculations, memorizations and other astounding math stunts. It's part of his drive to teach math and mental agility in interesting ways, following in the footsteps of such heroes as Martin Gardner.

Benjamin is the co-author, with Michael Shermer, of Secrets of Mental Math (which shares his secrets for rapid mental calculation), as well as the co-author of the MAA award-winning Proofs That Really Count: The Art of Combinatorial Proof. For a glimpse of his broad approach to math, see the list of research talks on his website, which seesaws between high-level math (such as his "Vandermonde's Determinant and Fibonacci SAWs," presented at MIT in 2004) and engaging math talks for the rest of us ("An Amazing Mathematical Card Trick").

More profile about the speaker
Arthur Benjamin | Speaker | TED.com