35 The checklist used was divided under two main headings, overall criteria and
coursebook specific criteria. The overall-course criteria consisted of eight categories, namely publishers claims, flexibility, syllabus, pedagogic approach, topic contents,
voice, instructions and teachability. The coursebook-specific criteria included four categories: appearance, design, illustration and reading texts. In addition, specific
criteria for cassettes and CD ROM, teachers book, workbook and video were used in this evaluative study. Then, Thein 2006 found that the textbooks used should
contribute to achieve the needs and wants of both teachers and learners, promote students critical thinking, and improve the students communicative skills for
everyday life situations. From these four sources, the researcher combined the checklist of aspects for
evaluating a book. There were some checklists which were deleted because the researchers had to modify the checklist to evaluate the workbooks. This checklist
contains five columns. First column is for numbers, the second one is for evaluation aspects. There are ten aspects in evaluating workbooks, they are:
1. General Appearance
General appearance is related to cover, the font size and the type of the letter used in the book, the informative pages and table of content, the title chosen for every
lesson, the glossary, and bibliography.
2. Design and Illustration
Design includes layout, space, consistency in the use of headings, icons, labels, italics, et cetera. While illustration is related to the pictures, charts, and tables
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36 which are used for in the workbooks.
3. Objectives
The materials in a workbook should be arranged based on curriculum as well as standard competence and basic competence for seventh grade students, so that the
materials are appropriate with the needs and wants for students.
4. Topic Contents
Topic contents are related to the variety of the topics and how the topics can attract the students.
5. Language Content
Language content is about grammar, vocabulary, and pronunciation used in the workbooks.
6. Social and Cultural Contexts
The workbooks should have a criterion that pertain to representation of cultural and gender components, how the material can be applied in daily life, and the
books should not be contrary to law, rules, ethics which are valid in the society and the state.
7. Language Skills
The checklist for this aspect let the researcher know whether or not the books contain four language skills: reading, writing, listening, and speaking, and the
appropriateness of those skills for the learners.
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37
8. Teachability
This aspect is for measuring the effectiveness of the workbooks in helping the
teacher to deliver the lesson. 9.
Flexibility
This is for measuring whether or not the workbooks can be used in any styles of learning.
10. Practice and Testing
Practice and testing deals with the number of exercises for the students, the clarity of the direction, the varieties of an exercise, and also the existence of
achievement test. The third and fourth column is toward criteria whether or not the aspect is met
or not in the workbooks. Criterion which is met will be valued 1 point, while 0 point will be valued to criterion which is not met. In the checklist, the researcher will only
tick the column but then further calculation and further description will be done. The specific calculation of the data in reckoning the presence and the absence of the
criteria is using this formulation:
ΣX = the total of criteria points which are met in a workbook for each aspect N = the total of criteria points in each aspect
Percentage = X 100 ΣX
N
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38 The sum of the points was considered as 100 and the researcher used these
conditions to decide the result of data analysis:
80 - 100 60 - 79
50 - 69 below 50
Good Fair
Sufficient Poor
The researcher not only had the calculation for each aspect, but also had given the overall calculation based on each workbook. The condition is the same but the
formulation is just similar, ΣX will be the total of criteria points which are met in a
workbook for all aspects and N will be the total of criteria points in all aspects.
F. Research Procedure
