Number + 篇 + Noun (article/essay)
The classifier (measure word) 篇 (piān) is used to count written works such as articles, essays, papers, and stories. Like all Chinese classifiers, it appears between a number or demonstrative and the noun it modifies.
我昨天读了一篇很有意思的文章。
Wǒ zuótiān dú le yī piān hěn yǒu yìsi de wénzhāng.
I read a very interesting article yesterday.
老师让我们每周写一篇作文。
Lǎoshī ràng wǒmen měi zhōu xiě yī piān zuòwén.
The teacher asked us to write an essay every week.
这篇论文的观点很新颖。
Zhè piān lùnwén de guāndiǎn hěn xīnyǐng.
The viewpoint of this thesis is very novel.