CHAPTER
II
REVIEW
OF RELATED LITERATURE
A.
Some Pertinent Ideas
1.
Concept of Tree
Diagram
a.
Definiton of Tree
Diagram
According
to McGraw (2010) tree diagram is based upon the traditional “family tree”
organizational graphic. Students are required to record how subordinate facts
or statements are related to one another and to a larger, unifying statement.
Tree diagrams also may be utilized as a main idea/support-ing details type of
graphic organizer. This type of graphic organizer is helpful when you want
students to find the main idea of a paragraph or section. The main idea or
topic is written in the top box. Then students must analyze the reading further
for information that demonstrates or supports that main idea or topic.
Using a
tree diagram enables the problem solver to visualize the different factors of
the problem more easily. It ensures that a systematic approach is used and that
no factors are missed out or repeated. In order to use the strategy of drawing
a tree diagram effectively, students will need to develop the following skills
and understanding
In addition Vygotsky,
L. (1978) tree
diagrams especially interesting for group work when teachers present words for
these pictorial schemata in scrambled order. Students are then asked to
unscramble the words by putting them in a logical order.
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