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}}

Quadratic approximation formula, part 1

65,442 views

Khan Academy

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

96%
  • 6:55 / 7:09

Speech Rate:

  • 213 wpm - Fast

Category:

  • Howto & Style

Tags :

Intro:

Video Vocabulary

specific

/spəˈsifik/

adjective noun

Concerning one particular thing or kind of thing. medicine or remedy effective in treating particular disease.

context

/ˈkäntekst/

noun

circumstances that form setting for event, statement, or idea.

function

/ˈfəNG(k)SH(ə)n/

noun verb

What something is intended to be used for; purpose. To be operating, working or achieving its purpose.

variable

/ˈverēəb(ə)l/

adjective noun

Having the ability to change or vary. element, feature, or factor that is liable to vary or change.

multiplied

/ˈməltəˌplī/

verb

To calculate two numbers e.g. 2 x 4.

starting

/stärt/

verb

begin or be reckoned from particular point in time or space.

quadratic

/kwäˈdradik/

adjective noun

involving second and no higher power of unknown quantity. quadratic equation.

literally

/ˈlidərəlē/

adverb

in literal manner or sense.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

Used to add new (often different) information.

ourselves

/ou(ə)rˈselvz/

pronoun

(Showing speaker is affected by their own action).

basically

/ˈbāsik(ə)lē/

adverb

in most essential respects.

approximate
adjective verb

close to actual, but not completely accurate or exact. come close or be similar to something in quality or quantity.

written

/rīt/

adjective other verb

Expressed using writing. To invent or create a computer program. mark symbols on surface with pen.

general

/ˈjen(ə)rəl/

adjective noun

Widespread, normal or usual. Top ranked officer in the army.

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