redictingmechanicalreasoningability(reasoningwiththenavy)預(yù)測(cè)機(jī)械推理能力（與海軍的推理）-文庫(kù)吧
2024-12-28 08:40 本頁(yè)面
【正文】 eciprocal training (Brown, Palincsar) ? Anchored Learning (Bransford,Vye, CTGV) ? Error diagnosis amp。 repair (Anderson, van Lehn, Lesgold) ? Building on prerequisites (Gagne) ? Cascade techniques (van Lehn, Schank) ? Sophisticated motivational techniques (Lepper) What can AutoTutor (and most human tutors) handle? Correct Information Errors and Misconceptions Tutor expects and Student expresses Yes Yes Tutor corrects Tutor expects but Student does not express Yes Tutor helps to fill in Yes Not manifested Tutor does not expect but Student expresses No (or rarely) Tutor ignores No (or rarely) Tutor ignores AutoTutor Language Extraction Speech act classifier Latent Semantic Analysis Curriculum Script Talking head with gestures Dialog Management Problem selection Managing One AutoTutor Turn ? Short feedback on the student’s previous turn ? Advance the dialog by one or more dialog moves that are connected by discourse markers ? End turn with a signal that transfers the floor to the student ? Question ? Prompting hand gesture ? Head/gaze signal Dialog Moves ? Positive immediate feedback: “Yeah” “Right!” ? Neutral immediate feedback: “Okay” “Uh huh” ? Negative immediate feedback: “No” “Not quite” ? Pump for more information: “What else?” ? Hint: “How does tossing the pumpkin affect horizontal velocity?” ? Prompt for specific information: “Vertical acceleration does not affect horizontal _______.” ? Assert: “Vertical acceleration does not affect horizontal velicity.” ? Correct: “Air resistance is negligible” ? Repeat: “So, once again, how does tossing the pumpkin affect horizontal velocity?” ? Summarize: “So to recap, [succinct summary].” Discourse Marker Relations y e a hy e sy e pO h y e a hT h a t 39。 sf i n ea n dm h mr i g h ts u r eu n h u n hs i n c eb a s i c a l l yh e l lt h a t 39。 sr i g h te x a c t l yI k n o wa p p a r e n t l yO h t h a t 39。 sr i g h tK i n d o fO h y e st h a t 39。 st r u eO fc o u r s eb e c a u s ec a u s em a nI n f a c tN o d o u b td e f i n i t e l ySample dialog Tutor: This might help. If the runner speeds up will the pumpkin land behind the runner, next to the runner, or in front of the runner? The pumpkin will land behind the runner. Tutor: Right. What is the horizontal force applied to the pumpkin after it leaves the runner39。s hands? There is no horizontal force applied to the pumpkin after it leaves the runner39。s hands. Tutor: Right. expectation(1): expectation(2): expectation(3): misconception (1) misconception (2): As zero force is acting on it, it will have constant velocity hence it will land on his head. .51 .66 .44 Expectation1 The pumpkin has the same horizontal velocity as the runner. Expectation2 Zero force is needed to keep an object going with constant velocity. Expectation3 Vertical forces on the pumpkin do not affect its horizontal velocity. The horizontal velocity of the pumpkin is the same as the runner. The horizontal velocity of the pumpkin is the same as the runner. .99 .66 .87 Expectation1 The pumpkin has the same horizontal velocity as the runner. Expectation2 Zero force is needed to keep an object going with constant velocity. Expectation3 Vertical forces on the pumpkin do not affect its horizontal velocity. How does Why/AutoTutor select the next expectation? ? Don’t select expectations that the student has covered cosine(student answers, expectation) threshold ? Frontier learning, zone of proxi
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號(hào)-1