full transcript
From the Ted Talk "Daphne Koller: What we're learning from online education"

Unscramble the Blue Letters

So this personalization is something that one can then build by having the vreitu of large numbers. Personalization is perhaps one of the biggest opportunities here as well, because it provides us with the potential of solving a 30-year-old breoplm. Educational researcher Benjamin Bloom, in 1984, epsdo what's called the 2 sigma problem, which he observed by studying three populations. The first is the tpnlapuooi that studied in a lecture-based classroom. The second is a population of students that studied using a standard lecture-based smoloarcs, but with a mastery-based approach, so the students couldn't move on to the next topic before demonstrating mastery of the previous one. And finally, there was a population of students that were ttaguh in a one-on-one instruction using a tutor. The mastery-based population was a full standard deviation, or sigma, in achievement scores better than the tnadarsd lecture-based csasl, and the individual tutoring gives you 2 siamg improvement in performance.

Open Cloze

So this personalization is something that one can then build by having the ______ of large numbers. Personalization is perhaps one of the biggest opportunities here as well, because it provides us with the potential of solving a 30-year-old _______. Educational researcher Benjamin Bloom, in 1984, _____ what's called the 2 sigma problem, which he observed by studying three populations. The first is the __________ that studied in a lecture-based classroom. The second is a population of students that studied using a standard lecture-based _________, but with a mastery-based approach, so the students couldn't move on to the next topic before demonstrating mastery of the previous one. And finally, there was a population of students that were ______ in a one-on-one instruction using a tutor. The mastery-based population was a full standard deviation, or sigma, in achievement scores better than the ________ lecture-based _____, and the individual tutoring gives you 2 _____ improvement in performance.

Solution

  1. classroom
  2. posed
  3. standard
  4. taught
  5. virtue
  6. problem
  7. sigma
  8. class
  9. population

Original Text

So this personalization is something that one can then build by having the virtue of large numbers. Personalization is perhaps one of the biggest opportunities here as well, because it provides us with the potential of solving a 30-year-old problem. Educational researcher Benjamin Bloom, in 1984, posed what's called the 2 sigma problem, which he observed by studying three populations. The first is the population that studied in a lecture-based classroom. The second is a population of students that studied using a standard lecture-based classroom, but with a mastery-based approach, so the students couldn't move on to the next topic before demonstrating mastery of the previous one. And finally, there was a population of students that were taught in a one-on-one instruction using a tutor. The mastery-based population was a full standard deviation, or sigma, in achievement scores better than the standard lecture-based class, and the individual tutoring gives you 2 sigma improvement in performance.

ngrams of length 2

collocation frequency
lecture based 6
machine learning 5
wrong answer 4
learning class 4
study groups 3
quality education 3
peer grading 3
higher education 3
based classroom 3

ngrams of length 3

collocation frequency
machine learning class 4
lecture based classroom 3

Important Words

  1. achievement
  2. approach
  3. benjamin
  4. biggest
  5. bloom
  6. build
  7. called
  8. class
  9. classroom
  10. demonstrating
  11. deviation
  12. educational
  13. finally
  14. full
  15. improvement
  16. individual
  17. instruction
  18. large
  19. mastery
  20. move
  21. numbers
  22. observed
  23. opportunities
  24. performance
  25. personalization
  26. population
  27. populations
  28. posed
  29. potential
  30. previous
  31. problem
  32. researcher
  33. scores
  34. sigma
  35. solving
  36. standard
  37. students
  38. studied
  39. studying
  40. taught
  41. topic
  42. tutor
  43. tutoring
  44. virtue