The Development of Instructional Packages in English Grammar
on Conditional Sentences for the 10th Grade Students
Nutcharee Narmratch 1* Nawamin Prachanant 2
Surachai Piyanukool 2
1*
Master’s degree in English, Graduate School, Buriram Rajabhat University
2
Advisors, Graduate School, Buriram Rajabhat University
*Corresponding author. E-mail:cherry.narm@yahoo.co.th
Abstract
The purposes of this research were: 1) to develop and determine the efficiency of
instructional packages in English grammar on conditional sentences for 10th grade students to
meet the criteria set at 75/75; 2) to compare the students’ learning achievement before and
after learning through the instructional packages in English grammar on conditional
sentences; 3) to investigate the effectiveness index of instructional packages in English
grammar on conditional sentences for 10th grade students; and 4) to study the students’
satisfaction towards the instructional packages in English grammar on conditional sentences.
The samples were 33 10th grade students who enrolled the fundamental English course
(EN31102) in the second semester of the academic year 2010 at Thantongpittakhom School in
Lamplaimat District, Buriram Province, selected by using purposive sampling technique. The
instruments used in this study were: 1) the English grammar on conditional sentences
instructional packages; 2) the learning achievement tests; and 3) the satisfaction
questionnaire. The statistics used for analyzing the collected data were percentage, mean,
standard deviation, and dependent samples t-test. The findings were as follows:1. The
instructional packages in English grammar on conditional sentences for 10th grade students
had an efficiency of 78.83/77.42 which was higher than the criteria set at 75/75.
2. The 10th grade students who learned by instructional packages in English grammar on
conditional sentences after learning had higher achievement than before learning at the .01
level of statistical significant difference.3. The effectiveness index of the instructional
packages in English grammar on conditional sentences was 0.6925 which was 69.25%
students reported that they were developed.
4. The 10th grade students were satisfied toward the instructional packages in English
grammar on conditional sentences as a whole at the most satisfactory level.
The findings can be significant for teachers and students to develop an effective teaching
and learning on conditional sentences in the EFL settings.
Keywords: Instructional packages, Conditional sentences, English grammar