Definition of Tree Diagram
Tree diagram is simply as one example of mind
mapping. Whereas the mind map is a central
idea surrounded by the branches of related ideas, tree diagram comes up with a diagram looks like a tree. According
to McGraw (2010: 13) 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/supporting 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.
Manoli & Papadopoulou (2012: 351) Tree diagrams/tree
structures/network trees, which belong to hierarchical organizers, visually
portray the main ideas of a text and establish the multiple relations among the
different elements that exist in a passage, such as general to specific or
specific to general through hierarchically describing the relationships of the
different elements of the text. Namely, tree diagrams communicate super
ordinate-subordinate or hierarchical concept relations, which is the defining
feature of a hierarchy. More often than not, they are used to describe family
trees, the construction of a sentence, the structure of societies, classes,
institutions, taxonomies, and various hierarchical models. Research supports
the implementation of tree diagrams to boost comprehension and recall of main
ideas.
Shapiro. S (2001: 2) states tree diagram can be used
to represent the relationships between different factors in a problem This
strategy is most often used with problems where it is necessary to work out all
possible combinations of the different factors in the problem. For example, if
you have three different colored wools to make a striped jumper, how many
different ways can you organize the colored stripes? You must begin by making a
list of the different colors, then work methodically down the list linking each
different factor until you have covered all possible combinations.
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: 24) 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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