First, they lost their children. Then the conspiracy theories started. Now, the parents of Newtown are fighting back.

The Office of Neighborhood Safety in Richmond, CA took a radical new approach to urban violence by creating mechanisms to financially stabilize perpetrators of violent acts in crime-ridden neighborhoods - essentially paying people not to kill. They have been dramatically successful at weening violent criminals off the destructive behavior by using a comprehensive approach that includes using solid data, employing mentors with similar backgrounds to the criminals, and monetary incentives.

Across the country, hospitals are embracing intensive intervention programs to help victims of violence — including those who have criminal histories — after they have been brought in for treatment of injuries. Such programs can help prevent retaliation, reduce the chance a patient will be violently injured again, and put people on track for success.

The Centre for the Prevention of Radicalization Leading to Violence in Quebec has expanded rapidly, becoming a model for programs around the world. What sets it apart from projects in Europe and the United States is that it confronts extremism of all stripes — not just Islamist — and focuses on behavior that signals the risk of violence, not just radical ideas, only involving law enforcement as a last resort.

In 2004, the Media Initiative set out to develop a trauma-informed curriculum for preschoolers in Northern Ireland. Using puppets, cartoons, and professional development, the social-emotional lessons have empowered students to better address conflict and communicate more effectively with each other. A Boston-based teacher education program is one of many who travel to Ireland to observe the program in action each year.

In California, half of school-aged children are the children of immigrants. Among many other initiatives in the city, a community-wide training project in Fresno aims to improve how adults in the city work with students of immigrant families. One of the challenges of the renewed push for a bilingual approach - finding sufficient bilingual teachers after years of the state's English-only education policies.

In Mancos, Colorado, the school board voted “no” to arming school staff in the traditionally Western town. Across the United States, the question of arming teachers is being brought up as a response to the increase in school shootings. The policy is highly contested, with some saying it provides students with a feeling of safety, but others saying the risks associated are too high. For the Mancos community, such a vote is a surprise given the town’s gun-friendly history, but is explained by the increase in new residents.

A six-week, half-day kindergarten jumpstart program in Billings, Montana is helping students to get acclimated to the classroom before formally entering school. While the "preschool-lite" offerings are not meant as a stand-in for a comprehensive preschool experience, they are a step towards closing the achievement gap, local officials and school administrators say.

A number of barriers prevent young children in Appalachia from enrolling in formal preschool classes. In response, a fleet of buses is traveling to remote communities to teach students academic and social skills.

Crime-tracking mobile apps give millions of Brazilians crowdsourced data on urban violence, alerting people to dangerous places and filling gaps in government data on shootings, robberies, and other risks. But apps such as Fogo Cruzado (“Crossfire”) and Onde Tem Tiroteio (“Where There's a Shooting”) offer statistically crude glimpses of crime, distorted by media and racial biases that one expert blames for myths about the risks people actually face.

Mr. Dad’s Father’s Club mentors local youth to nurture their social and emotional well-being, making them better equipped to handle the world around them. The Club also provides mentorships for fathers, helping them learn how to be more present in their children’s lives as research indicates the presence of positive role models can make youth more resilient when exposed to violent or negative environments. There are currently over 150 fathers who volunteer for events with the Club.