Numbers:
yī (one, 1)
èr (two, 2)
sān (three, 3)
sì (four, 4)
wǔ (five, 5)
liù (six, 6)
qī (seven, 7)
bā (eight, 8)
jiǔ (nine, 9)
shí (ten, 10)
shíyī (eleven, 11)
shíèr (twelve, 12)
èrshí (twenty, 20)
èrshíyī (twenty-one, 21)
Jiǔshíjiǔ (ninety-nine, 99)
Classroom Expressions:
Jǐshēng? (Which tone?)
Yīshēng (The first tone.)
Èrshēng (The second tone.)
Sānshēng (The third tone.)
Sìshēng (The fourth tone.)
Greetings:
Nǐhǎo! (Hello!)
Nǐmen hǎo! (Hello, everyone!)
Dàjiā hǎo! (Hello, everybody!)
Lǎoshī hǎo! (Hello, teacher!)
Tóngxuémen hǎo! (Hello, students!)
In class:
Shàngkè (Class begins.)
Xiàkè (Class is dismissed.)
Zàijiàn (Goodbye.)
Lǎoshī zàijiàn (Goodbye teacher.)
Míngtiān jiàn (See you tomorrow.)
Wèn! (Ask!)
Dá! (Answer!)
Yìqǐ shuō! (Say it together!)