169.数学课Spot the Differences in Chinese | Math Class Scene (CI METHOD Intermediate)

YouTube · Story Learning Chinese with Annie · Learner content · 2026/08/28

2026/08/28

Speech duration: 24min 35s
Unique characters · 80 once: 350
Word count: 2,514
Average sentence length: 11.8
Length: 25:06
Unique words · 120 once: 370
Syllables per minute: 153
Script: Simplified 简
Sentences: 319
Difficulty Advanceddifficulty Difficulty is estimated from vocabulary: knowing common words through Level 94 covers about 95% of the words in this content — roughly 1 unfamiliar word in 20, the coverage research links to comfortable listening. Level 94 sits in the Advanced range. How difficulty works: Advanced · 94

Difficulty is estimated from vocabulary: knowing common words through Level 94 covers about 95% of the words in this content — roughly 1 unfamiliar word in 20, the coverage research links to comfortable listening. Level 94 sits in the Advanced range.

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Vocab coverage

The Level you need to know each share of this video’s words. The dark 95% step is its difficulty.

Lv 1

Lv 9

Lv 36

Lv 94

Lv 188

HSK 3.0 coverage

Which HSK 3.0 list each of this video’s words comes from.

HSK 1 55%
HSK 2 9%
HSK 3 12%
HSK 4 5%
HSK 5 1%
HSK 6 1%
HSK 7–9 1%
Not on HSK 15%

Cumulative: HSK 1–4 covers 81% of the words, HSK 1–6 covers 84%, HSK 1–9 covers 85%.

Words to learn first

Pick a level to see the words a learner there needs to understand 95% of this video’s words.

Starting from zero (Beginner), learn 247 words to reach 95% of this video’s words.

The 20 most-used of these 247 words.

Word	Pinyin	Meaning (CC-CEDICT)	In video	Level
的	de	of; ~'s (possessive particle); (used after an attribute when it modifies a noun); (used at the end of a declarative sentence for emphasis); (used after a noun, verb or adjective to form a nominal expression, as in 皮革的[pi2 ge2 de5] "one made of leather" or 跑堂兒的\|跑堂儿的[pao3 tang2 r5 de5] "a waiter (literally, one who runs back and forth in a restaurant)" or 新的[xin1 de5] "new one"); also pr. [di4] or [di5] in poetry and songs; really and truly; a taxi; a cab (abbr. for 的士[di1 shi4]); (bound form) bull's-eye; target	218	Lv 1
这个	zhè gè	(pronoun) this; (adjective) this	119	Lv 1
是	shì	to be (followed by substantives only); correct; right; true; (respectful acknowledgement of a command) very well; (adverb for emphatic assertion); variant of 是[shi4]	82	Lv 1
他	tā	(third-person singular) (since the early 20th century, usu. male) he; him; his; (bound form) other; another; some other (as in 他日[ta1 ri4] and 他人[ta1 ren2])	67	Lv 1
在	zài	to exist; to be alive; (of sb or sth) to be (located) at; (used before a verb to indicate an action in progress)	62	Lv 1
我	wǒ	I; me; my	52	Lv 1
那	nà	(specifier) that; the; those (colloquial pr. [nei4]); (pronoun) that (referring to persons, things or situations); then (in that case); (archaic) many; beautiful; how; variant of 哪[na3]; old variant of 挪[nuo2]; surname Na; surname Nuo	47	Lv 1
我们	wǒ men	we; us; ourselves; our	45	Lv 1
一个	yī gè	a; an; one; the whole (afternoon, summer vacation etc)	44	Lv 1
着	zhe	a move in chess (Taiwan pr. [zhuo2]); trick; tactic; (dialect) okay; all right; (dialect) to put in; to add; to touch; to come in contact with; to feel; to be affected by; to catch fire; to burn; (coll.) to fall asleep; (after a verb) hitting the mark; succeeding in; aspect particle indicating action in progress or ongoing state; to wear (clothes); to contact; to use; to apply	44	Lv 1
老师	lǎo shī	teacher; CL:個\|个[ge4],位[wei4]	36	Lv 9
你	nǐ	you (informal, as opposed to courteous 您[nin2]); you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)	35	Lv 1
很	hěn	very; quite; (also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)	35	Lv 1
有	yǒu	to have; there is; (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)	32	Lv 1
她	tā	she	31	Lv 1
然后	rán hòu	then; after that; afterwards	30	Lv 2
没有	méi yǒu	haven't; hasn't; doesn't exist; to not have; to not be	26	Lv 1
也	yě	also; too; as well; (not ...) either; (used after a verbal or nominal expression X to indicate that X is an extreme or unexpected case) even (X); (literary) particle having functions similar to 啊[a5]; surname Ye	25	Lv 1
好	hǎo	good; appropriate; proper; all right!; (before a verb) easy to; (before a verb) good to; (before an adjective for exclamatory effect) so; (verb complement indicating completion); (of two people) close; on intimate terms; (after a personal pronoun) hello; to be fond of; to have a tendency to; to be prone to	22	Lv 1
个	gè	used in 自個兒\|自个儿[zi4 ge3 r5]; (classifier used before a noun that has no specific classifier); (bound form) individual; variant of 個\|个[ge4]	20	Lv 1

Is this video right for my Chinese?

A 25-minute video from Story Learning Chinese with Annie with 25 minutes of speech at 153 syllables per minute. It's 2,514 words long, using 370 different words. Difficulty: Advanced, Level 94 — it suits Advanced learners: knowing the common words through Level 94 covers about 95% of its words, roughly 1 unfamiliar word in 20. Words to learn first include 的, 这个, 是.