This study aimed to find out the current status of the implementation of CA, the attitudernof teachers and students toward CA and the challenge facing the implementation of CA.rnThe study involved 6 general secondary schools which were purposely selected from 17rngeneral secondary schools. 551 students, 22 mathematics teachers, and 6 directors wererninvolved in the study. The study used mixed methods design to conduct the research.rnData were collected through questionnaire, interview, observation and document analysis.rnPercentage, one way ANOVA and T-test were statistical method used to analyze andrnpresent the data. Finding showed that most teachers use CA during teaching learningrnmathematics. But there are variations between teachers, schools, Woreda and cityrnadministrations. Accordingly, it is hardly possible to say CA is implemented effectivelyrnin teaching and learning mathematics in the study area. It can simply be concluded thatrnCA is implemented only moderately. The study concludes that teachers have positivernattitude toward CA and they accepted CA is important to improve the achievement ofrnlearners. Students have also positive attitude toward continuous assessment but, thernawareness of students toward CA is very low. Large instructional content, lack of clearrnguide lines, lack of access internet and reference books, plasma television interruption,rnteacher miss class, teachersâ€™ lack of training and teachers commitment are the challengernfacing the implementation of CA. The researcher recommend that in service training ofrnteacher should be encourage by woreda and zonal education office, the school have tornreduce shortage of school facilities to enhance CA effectively by participating studentsrnfamily, community and non government organization, and all teachers have to commitrnequally in the implementation of CA.