By Levels

Library

EXP: 08888
HITS: {{lyricTraining.hits}}888
STREAKS: {{lyricTraining.streaks}}888
TIME: {{lyricTraining.timeout / 1000}}88
{{word.word}}

{{cue.translated_text}}

{{lyricTraining.hint}}

x{{playblackSpeed.toFixed(2)}}

Loading ..

Not Found

{{annotation.word}} ({{annotation.pos_simplify}})

/{{annotation.phonetic}}/

{{annotation.translation}}

{{annotation.name}}

{{annotation.sub_type}}

{{annotation.definition}}
Back

Games & Quizzes

Training Mode - Typing
Fill the gaps to the Lyric - Best method
Training Mode - Picking
Pick the correct word to fill in the gap
{{game.name}}
{{game.description}} Requires {{game.required_annotions}} vocabulary annotations

Congratulations! You gained {{totalPoint}} XP

You may need to watch a part of the video to unlock quizzes

Don't forget to Sign In to save your points

Repeat Skip ({{game.question_index}}/{{game.questions.length}})
{{part}}
Repeat Skip ({{game.question_index + 1}}/{{game.questions.length}})
{{choice.text}}
{{choice.text}}

Make correct pairs from two columns

{{lyricTraining.finished && lyricTraining.timed_out ? 'Timed Out' : 'Challenge Accomplished'}}

PERFECT HITS {{lyricTraining.stats.PERFECT_HITS}} +{{lyricTraining.stats.PERFECT_HITS * 20}}
HITS {{lyricTraining.stats.HITS}} +{{lyricTraining.stats.HITS * 10}}
LONGEST STREAK {{lyricTraining.stats.LONGEST_STREAKS}} +{{lyricTraining.stats.LONGEST_STREAKS * 10}}
REMAINING TIME {{lyricTraining.timeout / 1000}}s +{{lyricTraining.timeout / 1000}}
TOTAL +{{lyricTraining.exp}}
{{word.word}} - {{dictionary.definition[0].phonetic || ("/" + dictionary.phonetics +"/")}} - {{word.translation}}

We couldn't find definitions for the word you were looking for.
Or maybe the current language is not supported

{{simpleDefinition.pos}}

{{simpleDefinition.def}}

{{word.word}}

Sentences & parts of speech:

  • {{tag.normal}} {{tag.pos_name}}

  • {{c.startTime | duration}}


    {{c.translated_text}}

All {{pos.pos_simplify}}
{{a.word || a.name}}
/{{a.phonetic}}/
{{a.type || a.sub_type}}
{{a.translation}} 		{{a.definition}}

Optimal decision-making and opportunity costs | AP(R) Microeconomics | Khan Academy

13,859 views

Khan Academy

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

98%
  • 5:03 / 5:08

Speech Rate:

  • 179 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

associated

/əˈsōsēˌādid/

adjective verb

connected with something else. To form a connection in your mind between things.

reasoning

/ˈrēz(ə)niNG/

noun verb

action of thinking about something in logical. To think and make conclusions in a logical manner.

between

/bəˈtwēn/

adverb preposition

in space separating things. From one person, thing, or place, to another.

optimal

/ˈäptəməl/

adjective

Best or most desirable; best possible.

important

/imˈpôrtnt/

adjective

Having a big effect on (person, the future).

explicit

/ikˈsplisit/

adjective noun

(Of images/language) very clear, e.g. showing sex. closing words of manuscript etc..

maximize

/ˈmaksəˌmīz/

verb

To make as large or great as possible.

thinking

/ˈTHiNGkiNG/

adjective noun verb

using thought or rational judgement. Thoughts behind an idea, opinion or belief. To have an idea, opinion or belief about something.

because

/bēˈkəz/

conjunction

For a reason.

associate
adjective noun verb

connected with organization. Partner in professional work, e.g. in law. To spend time with other people; mix with.

decision

/dəˈsiZHən/

noun

Choice made after thinking; final judgment.

quantify

/ˈkwän(t)əˌfī/

verb

To find or calculate the quantity of something.

rational

/ˈraSH(ə)n(ə)l/

adjective noun

Able to think clearly. rational number.

implicit

/imˈplisit/

adjective

suggested though not directly expressed.

logical

/ˈläjək(ə)l/

adjective

of or according to rules of logic or formal argument.

Q
W
E
R
T
Y
U
I
O
P
A
S
D
F
G
H
J
K
L
Z
X
C
V
B
N
M