Even the most dull and uninspiring subject-matter can be turned into something wondrous.
Boredom is a mindset. If your teacher has slammed something unappealing onto the table (engine parts, glass bottles or any other great Art teacher staple), your challenge is to find a way to make these matter.
Take a deep breath and look for parallels between what you see and the stuff of your life.
Corroded steel joints can echo a faded and broken relationship; Light dancing on glass can represent layered memories or dreams.
Tell yourself a story. Look for ways to introduce exciting mark-making, techniques and mediums.
Take the shapes, lines and colours of your subject and use these as a vehicle to explore something personal and meaningful.