(St. Helens, OR)  --  St. Helens High School students are returning to class today following a three-day school closure due to allegations of sexual abuse by two teachers there.  KATU-2 reports the school held a workday yesterday to teach staff members how to properly handle sex abuse allegations.  Forty-six-year-old teacher Eric Stearns and 64-year-old former teacher Mark Collins were charged last week in connection to accusations of inappropriate touching of students.  Parents and students say the district failed to act fast enough.  The chair of the St. Helens School District Board has resigned, and the high school principal was placed on administrative leave following the allegations.