Yes, schools do a good enough job teaching World War I history. During World War I the Ottoman Empire rounded up and slaughtered over 1.5 million Armenians living in their empire. This event was the basis for the creation of the word "genocide." Many people know the meaning of the word genocide but not where it comes from. However, schools have done a good enough job.
No, schools in the United States do not do a well enough job teaching WWI history. They teach a select few topics that directly relate to the United States and less about other regions of the world. Groups like the Armenians are barely mentioned if mentioned at all. The Ottoman Empire is covered but not as well as it should be.
In the United States, history books tend to take a certain position based on whatever puts the United States in the best light. If something like the Armenian genocide doesn't have to do with the US, it tends to get skipped over completely in our history books. We need all the facts about wars that large, so we can avoid repeating mistakes.
No, schools don't do a good enough job teaching WWI history. In fact, public schools are generally not good at teaching any subject. Private schools and charter schools generally do an excellent job at teaching students WWI history, among other subjects. Of course, there are exceptions to this, but I did not receive a good history education from public school.