Today's edition of CNN STUDENT NEWS begins withtwo tragedies involving school violence.

There are seven schools in Danvers, Massachusetts.

Yesterday, officials closed all of them.

That happened after the body of Colleen Ritzer, a math teacher at Danvers High School wasfound in the woods behind the school.

A 14-year old has been charged with the murder.

Students describe Ritzer as anexcellent teacher who wanted to help anyone in any way she could.

The school said Danvers will feel this loss for many years.

The news from Massachusetts came two days after a shooting at a middle school in Nevada.

Authorities say a 12- year old wounded two students and shot and killed a teacher before killinghimself.

Police officials say the teacher, Mike Landsberry, appeared to be trying to stop the incidentwhen he was shot.

They described what he did as heroic, walking toward the shooter and giving other students thechance to get away.

Many of your schools have plans for dealing with violence.

You might have practiced lockdown drills.

Stories like this aren't easy to talk about, if you do want to talk about school violence, there is apost on our blog for you to do that.

Students 13 and older can go to cnnstudentnews.com.

Teachers, we've also included questions in today's daily curriculum to help you address toughtopics like this in your classrooms.

Is this legit?

The U.S. Surgeon General runs the Health and Human Services Department.

Nope, not true.

The Surgeon General is in the department, but it's run by the Health and Human ServicesSecretary.

That position is part of the president's cabinet.

Right now, it's filled by Kathleen Sebelius, she was nominated by President Obama andconfirmed by the U.S. Senate,

but now Secretary Sebelius is facing some tough criticism.

As the head of the HHS Department, she helps create and implement the president's healthpolicies.

That includes the Affordable Care Act, also known as Obamacare.

In Monday show, we talked about some of the problems with the Obamacare website, CNNasked Secretary Sebelius about the plans to get it fixed.

What can we tell people, because I mean there is-there is a bit of a loss of confidence in this, soif you say as quickly as possible, that meant October 1st.

Well, what we can tell you, is that it isn't where it needs to be.

We are three weeks into a 26th week open enrollment period.

People are enrolling every day.

Not as many as we would like, not at the volume we would like and we will keep working on ituntil it is working as efficiently as possible.

The president's legacy is part of this whole issue as well.

I mean has it been tarnished by what has happened.

I think that what we need to do is-is see the enrollment figures at the end of March of 2014.

That's when open enrollment ends, and what I know from what we are seeing in not only statesthat are run by the federal website, but states around the country,

is that the interest is huge, that people are eager to have this affordable product and that theproduct is there.

Insurance companies have to compete for one another, for people's business, for the first time.

It's time for the "Shoutout."

Which of these organizations was founded almost immediately after World War II ended?

Is it the Red Cross?

League of Nations, Organization of Petroleum Exploring Countries or the United Nations?

You've got three seconds, go!

The United Nations was established the month after World War II ended in 1945.

That's your answer and that's your "Shoutout."