Collaborative groups and cooperative learning refer to a variety of structured classroom management techniques and grading systems developed and studied by Aronson, Johnson & Johnson, Kagan, Slavin, and others since the early 1970s.
But within the realm of your food choices, including red beets and their green tops, Yukon gold and sweet potatoes, avocados, oats, and cod liver oil in your diet are simple and concrete steps that you can take right away to improve the health of your digestive system.
1. Eat a Healthy Diet Rich in Vitamins A and C for Healing. 1  The top foods for vitamin A include carrots, dark green leafy vegetables (spinach, kate, etc.), broccoli, sweet potatoes, winter squash (butternut, acorn, etc.), red bell peppers, mangoes, and apricots.