As a newcomer teacher I had to develop a lot of my own material so that it would be relevant for my students. You can check out resources for ELD teachers at Working Wonders, my Teachers Pay Teachers page.
As a bilingual teacher, I realized that there was a lack of good Chinese materials. The Chinese materials used in schools are from China, Hong Kong, or Taiwan. But students in America aren’t exposed to as much Chinese in their environment. They needed easier and more interesting material. Besides little Chinese readers, I also created writing lessons and Chinese games.
If your students are bored with Chinese textbooks. Try this little Chinese reader about Bruce Lee. The reader is meant for intermediate students.