Hi Jack,

Your note below:

wǒ zài xié xiào. wǒ zài zhèr zhèiyàng wǒ néng xié. wǒ xǐ wǒ de shǒu zài xǐ shǒu jiān něr zài nàr.

You've made 2 wrongs in Pinyin.

xié --> xué

něr --> nǎr

But, the gramma of the sentence is wrong. You should say:

I am at school. wǒ zài xué xiào.

I am here so I can learn. wǒ zài zhèr zhèiyàng（suǒyǐ） wǒ néng（kéyǐ） xué xí.

I wash my hands in the restroom which is there. wǒ zài nàr dē xǐ shǒu jiān xǐ shǒu.

and your question : does xin ci mean 'so'?

Not "xin ci", but "yin cǐ".  suǒyǐ, yincǐ, zhèyàng mean "so". I usually use "suǒyǐ".

hope it helps ^^

The pinyin for 学校 (school) is xue2xiao4 not xie2, 

A short note to help my vocab.

I am at school. I am here so I can learn（why？ I don't understand what’s the meaning of this sentence ）. I wash my hands in the restroom which is there.

wǒ zài xié xiào. （The first one is right!）///wǒ zài zhèr zhèiyàng xīn cǐ wǒ kě yǐ xié xí. ///wǒ xǐ wǒ de shǒu zài xǐ shǒu jiān něr zài nàr de xǐ shǒu jīan lǐ xǐ shǒu.

Hope that will help u,dude ^^!