The Effect Of Using Concept Map s On Achieving English Grammar ...

2 ) English grammar :- is a set of rules which govern the language ,these rules organize and fit words together to help learners to use thelanguage correctly and accurately .3) Traditional method :- It is a conventional method used by teachers inGaza . It is a teacher centered method , wh ere the teacher is the mainsource of teaching and demonstrates the scene while learners are passiverecipients .4) Achievement :- it is information , experience and skills of Englishlanguage introduced in curriculum and acquired by the learner during acertain period . achievement is measured by the marks the learner getsin the examination .5) Effect :- The degree of improvements in the students ′ achievementlevel in English grammar as a result of learning English grammar .6) High achievers :- students whose total score on the achievement testlies among the highest 25% of other students ′ score .7) Lower achievers :- students whose total score on the achievement testlies among the lowest 25% of other students ′ score .8) Statistical style :- it refers to the analysis that the researcher is going touse to measure the differences between groups8