叫 + Object + 为 + Name
The verb 叫 (jiào) can mean "to call" or "to name," used when giving something or someone a name or title. In the pattern 叫...为..., it means "to call something (as)." This usage is distinct from 叫 meaning "to shout" or its use in passive/causative constructions.
大家都叫他老王,其实他才三十岁。
Dàjiā dōu jiào tā Lǎo Wáng, qíshí tā cái sānshí suì.
Everyone calls him Old Wang, but he's actually only thirty years old.
这种植物叫什么名字?
Zhè zhǒng zhíwù jiào shénme míngzì?
What is this plant called?
我们把这个方法叫作"快速排序法"。
Wǒmen bǎ zhège fāngfǎ jiàozuò "kuàisù páixù fǎ."
We call this method "quicksort."