Good pronunciation is key to good communication. It’s absolutely necessary for good listening and speaking. Making the right sounds when speaking increases the chance that people will understand you. And recognizing the proper sounds when you hear them, improves your listening immensely. Students might not sound exactly like native speakers all the time. Often they don’t need to. In many cases it’s better for them to speak clearly and avoid confusion. But for their listening, understanding patterns of pronunciation is a major help.
I’d like to add some phonics materials as well if anyone is interested.
For all other ideas, feedback and input, feel free to contact me here: firstname.lastname@example.org