I intend this article as teaching material.

我打算把这篇文章用作教材。

We intend this article as teaching material.

我们打算把这篇文章作为教材。

Secondly, have to research teaching material.

其次，必须研究教材。

We intend the news report as teaching material.

我们打算把这篇新闻报道当作教材用。

Teaching material is a kind of particular text.

教材是一种特殊的文本。