Mathematical communication is the process of
expressing mathematical ideas through drawings, symbols, and other to clarify
mathematical problems. One of the efforts to enhance students' mathematical
communication is through tasks in the mathematics textbook. Mathematical tasks
are activities carried out by students as part of the learning process to
achieve mathematical learning goals.
This research aims to analyze and describe
mathematical communication in tasks within the grade VIII mathematics textbook
of the Merdeka Curriculum, specifically focusing on geometry content. This
research is a qualitative content analysis. The object of this research is the
tasks related to geometry content in the grade
VIII mathematics textbook published by the Ministry of Education, Culture, Research, and
Technology and
Erlangga. The data was
collected using task classification sheets and classification sheets for the
occurrence of mathematical communication indicators in tasks. The task classification
sheets are used to obtain data on
geometry content tasks in the form of activities and exercises, while the classification sheets for the occurrence of mathematical communication indicators in tasks are used to obtain data the occurrence of mathematical communication
indicators in each task.
The results showed that the tasks in the grade
VIII mathematics textbook published by Ministry of Education, Culture, Research, and
Technology and
Erlangga contain all indicators of mathematical
communication. These indicators include communicating
problem-solving strategies (66,7% &
63,9%), communicating ideas and problem
solutions (100% for both), communicating students' mathematical thinking coherently
(47,9% & 40,3%),
communicating students' mathematical thinking clearly (17,7% & 36,1%), analyzing other people's mathematical
thinking and strategies (6,3% & 2,8%), evaluating other people's
mathematical thinking and strategies (2,1%
& 1,4%), using mathematical symbols and terms
to express mathematical ideas (100% & 97,2%),
using tables and drawings to express
mathematical ideas (12,5% for both), and using students’
language/sentences to express mathematical solutions (61,5% & 59,7%). For future researchers conducting studies related to
the development of mathematics textbooks focus on mathematical communication,
it is advisable to provide more opportunities for students to engage in
mathematical communication.