SONIC donated $1 million to DonorsChoose.org through its Limeades for Learning® initiative   America's Drive-In funds 4,458 projects in 749 cities during Teacher Appreciation Month OKLAHOMA CITY, 2017-Jun-07 — /EPR Retail News/ — SONIC® Drive-In (NASDAQ: SONC), the nation's largest chain of drive-in restaurants, announced the impact of its second #ThanksTeach campaign in partnership with Julianne Hough during Teacher…