The article Mindfulness Exercises Increase Kids' Math Scores shares the story of students who have attended mindfulness classes. These classes taught techniques like healthy eating, breathing exercises, meditation, and looking at things from another point of view.
The lessons showed important sense-sharpening exercises, like mindful smelling and mindful eating, along with cognitive mindfulness. For example, they practiced expressing more gratitude and performing more kind acts to others.
These 99 fourth and fifth graders were in the classes for four months, after which they showed markedly better test scores in all areas. Children with the mindful intervention had 15% better math scores specifically, attributing the academic gains to these new practices.