▁in ▁the ▁play ▁V y š et ř ování ▁z tr á ty ▁t ří d ní ▁kn ih y ▁(" Inv estig ation ▁of ▁the ▁L oss ▁of ▁a ▁Class ▁Book ", ▁ 1 9 6 7 ). ▁ ▁C im r man ▁became ▁a ▁teacher ▁in ▁the ▁small ▁Gal ician ▁village ▁of ▁Str uk ▁(" te at "), ▁as ▁a ▁pun ishment ▁by ▁court , ▁when ▁it ▁was ▁revealed ▁he ▁could ▁both ▁read ▁and ▁write . ▁ ▁A ▁pract ition er ▁of ▁his ▁" F ut ur ism " ▁ide ology , ▁he ▁also ▁prepared ▁his ▁students ▁for ▁the ▁future ▁practical ▁use ▁of ▁ph ones , ▁which ▁were ▁being ▁slowly ▁installed ▁throughout ▁the ▁emp ire ▁at ▁that ▁time . ▁He ▁created ▁in ▁them ▁such ▁a ▁eu ph oria , ▁that ▁when ▁the ▁first ▁ph ones ▁arrived , ▁many ▁of ▁his ▁current ▁and ▁former ▁students ▁began ▁throwing ▁whole ▁fort unes ▁into ▁the ▁ph ones , ▁calling ▁random ▁numbers ; ▁many ▁of ▁them ▁went ▁home ▁from ▁the ▁tele phone ▁bo oth s ▁completely ▁p enn il ess ▁and ▁became ▁begg ars . ▁ ▁He ▁also ▁revolution ized ▁his ▁small ▁town ▁school ing ▁methods . ▁Know ing ▁that ▁the ▁coh ort ▁is ▁bound ▁to ▁forget ▁at ▁least ▁a ▁part ▁of ▁the ▁lecture , ▁his ▁system ▁was ▁based ▁on ▁div iding ▁the ▁lect ured ▁subjects ▁into ▁clearly ▁marked ▁" For get - me - not " ▁and ▁" Not - for get - me - not " ▁sections . ▁The ▁former ▁was ▁one - t