DepEd finds 155 errors in learning materials, including use of vulgar word By ANNA FELICIA BAJO, GMA News Published June 14, 2021 12:53pm Updated June 14, 2021 1:34pm Department of Education (DepEd) Undersecretary Diosdado San Antonio on Monday said the agency has discovered a total of 155 errors in their learning materials. Initially, there were 163 reported errors in learning materials from October 2020 to June 2021, but upon validation, the number went down to 155, San Antonio told a hearing at the House of Representatives. San Antonio said 100 of these errors were in locally-developed materials. He said they refer to the division office level for the issuance of errata on these errors.