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}}

Worked example: Riemann sums in summation notation | AP Calculus AB | Khan Academy

249,498 views

Khan Academy

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

99%
  • 7:04 / 7:06

Speech Rate:

  • 159 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

practice

/ˈpraktəs/

noun verb

Doing something many times to become better at it. perform activity repeatedly to improve or maintain proficiency.

equally

/ˈēkwəlē/

adverb

In an equal, even, or identical manner.

notation

/nōˈtāSH(ə)n/

noun

series or system of written symbols used to represent numbers.

familiarity

/fəˌmilyˈerədē/

noun

close acquaintance with something.

splitting

/ˈsplidiNG/

adjective noun verb

(of headache) severe. action of dividing or being divided into parts. To separate into two or more pieces.

rectangles

/ˈrekˌtaNGɡəl/

noun other

plane figure with four straight sides and four right angles. Four-sided geometrical shapes with all right angles.

function

/ˈfəNG(k)SH(ə)n/

noun verb

Mathematical operation used in calculations. To serve a certain purpose or role.

attempting

/əˈtem(p)t/

verb

To try to do something challenging or difficult.

approximate
adjective verb

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

between

/bəˈtwēn/

adverb preposition

in space separating things. at, into, or across space separating things.

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