Läste precis en ganska intressant essä om matematikundervisning av en matematiker: http://www.maa.org/devlin/lockhartslament.pdf
Liten sammanfattning av några viktiga poänger han gör:
Diskussionsunderlag: Då jag själv inte kan någon matematik utöver gymnasienivå så skulle det vara intressant att höra vad ni som läst mycket matematik anser om detta. Håller ni med om något författaren skriver eller tycker ni att det mest bara är visionärt svammel?
Liten sammanfattning av några viktiga poänger han gör:
I stort sett säger han att dagens matematikundervisning har urholkat allt verkligt matematiskt innehåll. Han menar att matematik är en konstart som handlar om att i matematikens värld stöta på mönster och att skapa och lösa problem med hjälp av sin egen kreativitet och sitt egna logiskt tänkande snarare än att att bara få en uppsättning regler som man ska tillämpa i meningslösa övningsuppgifter som idag (notera att detta är skrivet i en amerikansk kontext, men samma saker gäller väl i stort sett för Sverige och kanske övriga Europa:
Citat:
Han proponerar för ett slopande av dagens system där man lär sig en uppsättning grundläggande matematiska påståenden, går vidare och lär sig en ny uppsättning påståenden, etc. I stället vill han att matematik ska läras ut som den konstart han hävdar att den är:
Ursprungligen postat av Lockhart
By concentrating on what, and leaving out why, mathematics is reduced to an empty shell.
The art is not in the “truth” but in the explanation, the argument. It is the argument itself which
gives the truth its context, and determines what is really being said and meant. Mathematics is
the art of explanation. If you deny students the opportunity to engage in this activity— to pose
their own problems, make their own conjectures and discoveries, to be wrong, to be creatively
frustrated, to have an inspiration, and to cobble together their own explanations and proofs— you
deny them mathematics itself.
The art is not in the “truth” but in the explanation, the argument. It is the argument itself which
gives the truth its context, and determines what is really being said and meant. Mathematics is
the art of explanation. If you deny students the opportunity to engage in this activity— to pose
their own problems, make their own conjectures and discoveries, to be wrong, to be creatively
frustrated, to have an inspiration, and to cobble together their own explanations and proofs— you
deny them mathematics itself.
Citat:
Många kanske inte skulle lära sig i närheten av den mängd matematiska fakta som vi lär oss idag. Och till de som hävdar att samhällets medlemmar måste kunna viss grundläggande matematik för att det är praktiskt nyttigt i livet ger han en känga:
Ursprungligen postat av Lockhart
So how do we teach our students to do mathematics? By choosing engaging and natural
problems suitable to their tastes, personalities, and level of experience. By giving them time
to make discoveries and formulate conjectures. By helping them to refine their arguments and
creating an atmosphere of healthy and vibrant mathematical criticism. By being flexible and
open to sudden changes in direction to which their curiosity may lead. In short, by having an
honest intellectual relationship with our students and our subject.
...
SIMPLICIO: Then what should we do with young children in math class?
SALVIATI: Play games! Teach them Chess and Go, Hex and Backgammon,
Sprouts and Nim, whatever. Make up a game. Do puzzles. Expose
them to situations where deductive reasoning is necessary. Don’t
worry about notation and technique, help them to become active and
creative mathematical thinkers.
problems suitable to their tastes, personalities, and level of experience. By giving them time
to make discoveries and formulate conjectures. By helping them to refine their arguments and
creating an atmosphere of healthy and vibrant mathematical criticism. By being flexible and
open to sudden changes in direction to which their curiosity may lead. In short, by having an
honest intellectual relationship with our students and our subject.
...
SIMPLICIO: Then what should we do with young children in math class?
SALVIATI: Play games! Teach them Chess and Go, Hex and Backgammon,
Sprouts and Nim, whatever. Make up a game. Do puzzles. Expose
them to situations where deductive reasoning is necessary. Don’t
worry about notation and technique, help them to become active and
creative mathematical thinkers.
Citat:
Ursprungligen postat av Lockhart
How many people actually use any of this “practical math” they
supposedly learn in school? Do you think carpenters are out there
using trigonometry? How many adults remember how to divide
fractions, or solve a quadratic equation? Obviously the current
practical training program isn’t working, and for good reason: it is
excruciatingly boring, and nobody ever uses it anyway. So why do
people think it’s so important? I don’t see how it’s doing society any
good to have its members walking around with vague memories of
algebraic formulas and geometric diagrams, and clear memories of
hating them. It might do some good, though, to show them
something beautiful and give them an opportunity to enjoy being
creative, flexible, open-minded thinkers— the kind of thing a real
mathematical education might provide.
supposedly learn in school? Do you think carpenters are out there
using trigonometry? How many adults remember how to divide
fractions, or solve a quadratic equation? Obviously the current
practical training program isn’t working, and for good reason: it is
excruciatingly boring, and nobody ever uses it anyway. So why do
people think it’s so important? I don’t see how it’s doing society any
good to have its members walking around with vague memories of
algebraic formulas and geometric diagrams, and clear memories of
hating them. It might do some good, though, to show them
something beautiful and give them an opportunity to enjoy being
creative, flexible, open-minded thinkers— the kind of thing a real
mathematical education might provide.