ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti nˈaɪn ðə dˈɪstɹɪkt ˌɪntɹədˈuːst ðə dˈeɪvɪd dˈʌɡləz dˌaɪəɡnˈɑːstɪk mˌæθɪmˈæɾɪks, sˈɪksθ ɡɹˈeɪd tˈɛstɪŋ plˈæn dˌiːdˌiːdˌiːˈɛm sˈɪks ɐn ˈeɪɾi nˈaɪŋkwˈɛstʃən kəmpjˈuːɾɚskˈoːɹd mˌʌltɪpəl tʃˈɔɪs tˈɛst ɔnðə dˈɪstɹɪkt ˌaɪbˌiːˈɛm wˈʌn θˈaʊzənd fˈoːɹhˈʌndɹɪd wˈʌn jˈuːzd tʊ ɐsˈɛs dˈɪfɪkˌʌltiz ɪn mˌæθɪmˈæɾɪks ɪn stˈuːdənts.
In 1969 the district introduced the David Douglas Diagnostic Mathematics, 6th Grade testing plan (DDDM6) an 89-question computer-scored multiple choice test on the district IBM 1401 used to assess difficulties in mathematics in students.