The teaching materials consisted of 14 lesson plans and 12 reading passages
which were adapted to meet the purpose of the study. English reading experts and the
research advisors evaluated them for any ambiguous wording and inappropriateness. The
reading materials were taken from the four following reading books sanctioned by the
Ministry of Education: Opportunities Intermediate (Harris, Mower & Sikorzyn’ska,
2005) and Weaving It Together, books 1 to 3 (Broukal, 2004). Additionally, the
researcher selected 12 passages from reading books for Thai high-school students based
on the participants’ level of English and interests, and from various fields. They consisted
of ten passages for reading in the classroom and two passages for assignments. The
following is a description of these 12 reading passages:
Can We Ever Communicate?
How Can Animals Communicate?
The World’s Most Unusual Millionaire
Many Faces, One Body
The Knight’s Tale