Kimberly Payton, a teacher at the Small Savers Child Development Center, reads to a group of preschoolers in Washington, D.C., in 2010. Researchers say that teachers who make small changes in how they read to 4-year-olds can improve kids' reading skills later on. Ricky Carioti/The Washington Post/Getty Images hide caption

itoggle caption Ricky Carioti/The Washington Post/Getty Images

A label on a package of Tide laundry detergent packets warns parents to keep them away from children. Nearly 250 cases of illness from such packets have been reported to poison control centers this year. Pat Sullivan/AP hide caption

itoggle caption Pat Sullivan/AP

Moms and their kids protest a proposed ban on homemade food at bake sales in New York City schools at a rally near City Hall in 2010. One sign read, "I wanna get obese on my terms. No junk food." edenpictures/Flickr hide caption

itoggle caption edenpictures/Flickr