using concepts as scaffolding for mathematics english … · 2017. 5. 8. · a formal language is a...
TRANSCRIPT
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Today:
1. What is language?
2. What is Mathematical Proficiency?
3. What do English learnes need?
4. Academic Language vs. Everyday
Language
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What is Language?
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You write to ask me for my opinion of X, who has applied for a position in your department. I cannot recommend him too highly nor say enough good things about him. There is no other student of mine with whom I can adequately compare him. His thesis is the sort of work you don’t expect to see nowadays and in it he has clearly demonstrated his complete capabilities. The amount of material he knows will surprise you. You will indeed be fortunate if you can get him to work for you.
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What is the answer we need in schools?
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Planning/delivering lessons with dual goals of
developing mathematics understanding and academic language will improve ELLs ability to become proficient
in DOING mathematics.
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Doing Mathematics?
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National Research Council. (2001) Adding it up: Helping children learn mathematics. J. Kilpatrick, J. Swafford, & B. Findell (Eds.)
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National Research Council. (2001) Adding it up: Helping children learn mathematics. J. Kilpatrick, J. Swafford, & B. Findell (Eds.)
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What is language?
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Language
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System
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communicating
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concepts
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ideas
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feelings
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& thoughts…
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sounds
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gestures
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signs
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& marks
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In mathematics, logic and computer science, a formal language is a set of finite-length words (i.e. character strings) drawn from some finite alphabet, and the scientific theory that deals with these entities is known as formal language theory. Note that we can talk about formal language in many contexts (scientific, legal, linguistic and so on), meaning a mode of expression more careful and accurate, or more mannered than everyday speech.
en.wikipedia.org/wiki/Language
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In mathematics, logic and computer science, a formal language is a set of finite-length words (i.e. character strings) drawn from some finite alphabet, and the scientific theory that deals with these entities is known as formal language theory. Note that we can talk about formal language in many contexts (scientific, legal, linguistic and so on), meaning a mode of expression more careful and accurate, or more mannered than everyday speech.
en.wikipedia.org/wiki/Language
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What about…
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Academic Language?
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The
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Language
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of each
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discipline
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to communicate
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about
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that discipline.
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To communicate…
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what about the discipline?
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concepts
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ideas
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feelings
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& thoughts…
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sounds
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gestures
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signs
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marks
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What do English learners need?
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What is it like to learn mathematics
as an English Learner ?
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Travieso
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SOLO
PARTNER
TABLE
WHOLE GROUP
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How did it feel to have to solve a problem in language different from yours?
Did you feel you had access to the problem? …to the language? …to the mathematics?
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What do English learners need?
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VISION
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native-like levels of proficiency in English;
maintenance and promotion of students’ native language;
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everyone in the school responsible for their education;
to reassurance that knowledge of more than one language and culture is an advantage.
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TESOL:Language
Acquisition
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Language is functional.
Language varies.
Language learning is cultural learning.
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Language acquisition is a long-term process.
Language acquisition occurs through meaningful use and interaction.
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Academic Language
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Is not anyone’s primary language.
Does not work well in everyday situations.
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It is an essential part of learning each subject.
To learn science includes learning the language of science.
Each discipline has internal ways of using it
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Logic, analogy, and explanatory narrative dominate the text structures.
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There are often pictures, demonstrations, diagrams, realia, experiments, and revisitation.
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Many features of the academic language cross linguistic boundaries.
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For example, mathematical equations and graphical displays are like sub-languages shared across languages.
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The diagrams of how DNA works look the same in any language.
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Isn’t that just good teaching?
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English learners have a triple challenge…
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For ELs, the ongoing triple challenge of handling “everyday” and [Academic] English, unfamiliar contexts/cultural norms, and content, all at the same time [particularly] during an on-demand setting can be quite daunting.
Carl Lager, UC Santa Barbara
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All Purpose Academic Words
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Words for thinking:hypothesize, evidence, criterion
Words for classifying: vehicle, utensil, process
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Words for communication: emphasize, affirm, negotiate
Words for expressing relationships: dominate, correspond, locate
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Why is English so hard?
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I could not disagree with
you less.
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Free gifts with every purchase.
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I personally feel better
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advanced planningnever beforepast historytired clichessworn affidavitfinal ultimatum
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“the whole piece”
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Even(a side trip)
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Social Register
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The floor is even (smooth/liso)
The picture is even with the window (leveled/nivelado)
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Sleep provides even rhythm in our breathing (regular/uniforme)
The dog has an even temperament (calm/calmado)
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If we divide equally…we will be even (balance/igual)
Looked sick and felt even worse (comparative/aún)
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So simple even a child can do it (comparative/incluso)
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Got even
To be even
Even out
Break even
not even
Even Steven
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Mathematics Register
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Number: Even numbers (e.g., 2, 4, 6, etc.)
Number: Even amounts (e.g., even amounts of sugar and flour)
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Measurement: Exact amount (e.g., an even pound)
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Everyday English (EE) vs.
Academic English (AE)
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AE requires several proficiencies…
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phonological
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lexical
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grammatical
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discoursal
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strategic
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metalinguistic
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sounds
words
phrases
sentences
function
discourse
meta-cognitive
self-correction
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Phonological
Sounds: tens vs. tenths sixty vs. sixteen sum vs. some whole vs. hole off vs. of
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Phonological
Sounds: T: How many halves do you have?
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Lexical
Three kinds of words: meaning in EE only meaning in AE only meaning in EE and a different meaning in AE
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Meaning in EE only
cat taxi because climb shelf
dog lamp etc.
The difficulty these words pose is the same whether we use them in EE or AE.
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Meaning in AE only
hypotenuse parallelogram coefficientquadratichabitat
erosionphotosynthesis.
Students encounter these words in school and must learn their meaning from the teacher, the
textbook, or someone else who can explain them.
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Specialized meaning in AE
The scientist needs to stir the solution after adding mold and bark. Then test to see if there is a gas… and test to see if the material sticks.
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Specialized meaning in AE
The scientist needs to stir the solution after adding mold and bark. Then test to see if there is a gas… and test to see if the material sticks.
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Specialized meaning in AE
Is zero a “number”? “I own a number of algebra books.” “I have a number of friends.” “I have visited a number of places.”
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Specialized meaning in AE
What is a line? EE: any line segment AE: an infinite line
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Specialized meaning in AE
Is a straight line a curve? EE: not a curve AE: the simplest example of a curve
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Specialized meaning in AE
“Or” Coffee or tea? Are you coming or going? Was that your husband or your boyfriend?Do it now or later?
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Specialized meaning in AE
“Or” EE: “or” is exclusive AE: (logic) by convention “or” is inclusive. Thus, “A or B” is true if A or B or both.
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Specialized meaning in AE
Multiplying: EE: repeating addition, make things bigger AE: bigger, smaller, or neither
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Specialized meaning in AE
Dividing: EE: cut into pieces, possibly equal pieces AE: the same as multiplication (dividing by a non-zero number is multiplying by its reciprocal).
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“Amoebas multiply by dividing.”
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Grammatical
Rules/syntax of English Context is crucial. Some words and the mathematical concept they represent differs depending on the context.
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Grammatical
Rules/syntax of EnglishFor example, base and square will mean different things if we are discussing space or number.
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Grammatical
Rules/syntax of English: prepositions
The temperature fell… to 10 degrees by 10 degrees from 10 degrees
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Write an expression for the number of tiles needed to surround a pool that is s feet on an edge.
s
s
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Write an expression for the number of tiles needed to surround a pool that is s feet on an edge.
s
s
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Write an expression for the number of tiles needed to surround a pool that is s feet on an edge.
s
s
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Write an expression for the number of tiles needed to surround a pool that is s feet on an edge.
s
s
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Mil Gracias