The object ive of thi s stud y is to in vest igate whether eYT is be in grneffecti vely employed in Grade 11. So, to achieve this objective a case contro lrncross-sect iona l inte rven ti on type of stud y was conducted on rand om ly sele ctedrnsa mple size of 100 s tudents (50 as experim e nt al an d 50 as co nt ro l) and on tenrn11th grade En g li sh teachers of th e fo ur gover~me nt sch oo ls - ETSSS (No. I ),rnYI2SS , l eSS and M II SS - in Addis Ababa to determine whether eVT isrnbein g effect ive ly employed in Grade II amon g the study p opulation as it isrnexp ec te d. To make the objective of th e study achievable, th en , a prestructuredrnand pre-tes ted questionnaire was administered to know the attitud e,rnknowle dge and practice of both teach ers and stud en ts pertaining to eyT.rnMoreover, classro om obse rvations were conducted whil e the Engl ish te achers,rnteac he rs embraced in the study, were teaching vocabulary to counter- checkrnwheth e r th e re sponses prov id ed to the question s on th e qu estionnairerncorrespond to w hat was being observed during th e te achin g-l earn in g process .rnY H owever, prior to di stributing qu estionnaires and conducting c lass roomrnobservat ions, a pre-test was administered to both groups - experim e ntal and ,rncontrol groups - to see wheth er a statistically significant difference wou ld bernobse rved with regard to g rad e achievements of th e groups at the outse t.rnL ate r, after the two g roups were found out to be th e sam e in theirrnabi lity, because t-observed w as less th an t-critical (i .e. to < te = 0.88 8 < 1. 645rnat P < 0.05 ) whi ch by the same token means 'there is no s tati stica ll y s ign ifi ca ntrndifference', lesso n s with regard to eVT were tau g ht to stud ent s in th ernexperimenta l group 'fo r a period of one and a half months.rnAfter th e inte rv eotio n or teac hing, th en, a post-test was admini stered tornboth groups - experimental and control groups - to see whether a kind ofrnprogress would be observed as a res ult of the int erven t ion.rnThen, from th e resu lt s of the post-te st, it was found out that stu de nt s inrnth e experim ental group sco red very high grades in terms of average ( i. e. 64.9)rnwhereas those in the control group obtained only 49.7%, thou gh th e tworngroups were th e sa me in the ir ability before the interve ntion. Of course, a veryrnstrong stati stica l difference was also observed betwe e n the two groups; t~rnobserved was g reater than t-critical (to < te = 55.7 > 1.64 at P