What can you do when the wheels of justice don't turn fast enough? Or when they don't turn at all? Vivek Maru is working to transform the relationship between people and law, turning law from an abstraction or threat into something that everyone can understand, use and shape. Instead of relying solely on lawyers, Maru started a global network of community paralegals, or barefoot lawyers, who serve in their own communities and break the law down into simple terms to help people find solutions. Learn more about how this innovative approach to using the law is helping socially excluded people claim their rights. "A little bit of legal empowerment can go a long way," Maru says. Originally published in January 2018 from TEDGlobal 2017. Author/Speaker: Vivek Maru

More than 8 million people are crowded together to live in New York City. What makes it possible? In part, it’s the city’s great public spaces — from tiny pocket parks to long waterfront promenades — where people can stroll and play. Amanda Burden helped plan some of the city’s newest public spaces, drawing on her experience as, surprisingly, an animal behaviorist. She shares the unexpected challenges of planning parks people love -- and why it's important. Originally published in April 2014 from TED2014. Author/Speaker: Amanda Burden

Su Kahumbu raises badass cows -- healthy, well-fed animals whose protein is key to solving a growing crisis in Africa: childhood nutritional stunting. With iCow, a simple SMS service she developed to support small-scale livestock farmers, the TED Fellow is helping farmers across the continent by texting them tips on caring for and raising animals. Learn more about how this cheap innovation is helping feed hungry kids, one text at a time.

Until recently, many teachers only got one word of feedback a year: "satisfactory." And with no feedback, no coaching, there's just no way to improve. Bill Gates suggests that even great teachers can get better with smart feedback -- and lays out a program from his foundation to bring it to every classroom.