Abstract:
The purposes of this research were to develop a computer instruction package of the matter of
learning basic math for Student in prathomsueksa 3 of sinraesiam School, to evaluate the efficiency
of the package and the learning effectiveness. The research tools were 1) the computer instruction
package of the learning basic math for students in prathomsueksa 3 of sinraesiam school, 2) the
qualitative evaluation form for multimedia software, 3) the achievement test. The research sample
group was composed of 43 students in prathomsueksa 3 from sinraesiam school. The research
results revealed that the efficiency of the computer instruction package was 85.12/89.71, which was
corresponding to 80/80 criteria. When, the pre-test and post-test scores were compared to evaluate
the learning effectiveness, it was found that the efficiency of pre-test (Epre) was 24.53 and the
efficiency ofpost-test (Epost) was 89.71. There for, the Computer Instruction Package could increase
the learning effectiveness up to 65.17%. It could be concluded that, this computer instruction
package could be used as well as for self-study in The matter of learn basic math for Students in
prathomsueksa 3 of sinraesiam school.