school (Puadi, 2017). The history of mathematics in
Islam has a very strong contribution because there are
certain verses in the Qur'an that have a connection
with the mathematics used by Islamic scholars in
developing it, in accordance with the purpose of the
Qur'an to reveal that humans can use their intellect
(Hussain, 2017). doing far better than just copying
Greek and Indian, their additional research techniques
developed and systematized some in the field of
mathematics (Smith, 2008).
An implementation of general curriculum
integration with Islam can be found in mathematics
teaching subjects, such as student worksheets. This
agrees with Amir MZ (2003) that one of the
integration models that can be used is the Webbed
Model (spider network model). This model is
integrated learning that uses thematic approaches. In
this case the mathematical material is associated with
the study of Al-Qur'an. This is in line with Abdussakir
(2009) who stated that in his study it was stated that
mathematics and Islamic science had very close links.
As well as mathematics as a basic science related to
religious life. In the context of jurisprudence (Muniri,
2016). In this case the researcher is interested in
combining the material of division with the science of
Fara'id (distribution of inheritance) contained in the
Qur'an.
Science of Fara'id is one of the branches of Fiqh
science. Science Faraid specifically discusses the
definition of heir and heir (Rasjid, 2007). The science
of mawaris is a very important science and is only
found in Islam, because with the knowledge of
mawaris someone's inheritance can be given to those
who have the right to prevent disputes about the
inheritance, so inheritance (inheritance) can be shared
with those who are entitled to receive well and
correctly without anyone feeling disadvantaged,
because all of them are based on the rules or
provisions of the applicable law (Juhdi, et,all, 2017).
The distribution of Islamic heritage over the death of
a Muslim is an obligation not to be taken lightly by
all Muslims (Noordin, et.all, 2013). So, besides that,
it also discusses the mathematical division of rights
obtained by heirs. Because the science of Fara'id uses
the concept of calculation, the researcher wants to
integrate mathematics learning with the aim of
introducing students early on the science of fara'id.
The material that is integrated is understanding,
grouping of expert experts and the simplest rules of
distribution.
To combine mathematical subjects and Islamic
subjects is not easy. Therefore, researchers tried to
develop learning devices for the fifth grade of
elementary school on the topic of fraction counting
operations with the science of Fara'id. The device in
question is LKPD (student worksheet). This study
examines the validity, practicality of the development
of the LKPD and its effectiveness on the results of
students' mathematical learning in the distribution
material and religious material about Fara'id. This is
in accordance with the principle of developing
teaching materials must meet the criteria valid,
practical and effective, so that they can have a
positive impact on learning (Akker, 1999).
2 METHODOLOGY
This study is a research and development (R & D)
development of prototypical project interventions
(Akker, 1994). This development research design
consists of 3 stages, namely front-end analysis,
prototype stage, assessment stage. Learning tools
developed are LKPD (Student Worksheet). Activities
at the stage of the back-face analysis carried out
included interviews with colleagues, analyzing
syllabus, textbooks, literature. Based on the results of
the analysis of the back face compiled a learning device
prototype which was then consulted with experts. This
prototype was then validated by 6 experts, namely
three mathematicians and three religious education
experts (fiqh) from UIN Suska Riau.
In the practicality and RPP and LKPD test phases
were tested on teachers and fifth grade students of
Sumahilang Pekanbaru Elementary School 02 in
2015. The reason for choosing the school was by
considering the ease of communication with the
school and knowing the conditions of the participants.
The trial was observed by 2 (two) observers. Practical
Test Data was collected through observation sheets of
learning implementation and interviews with
teachers. The effectiveness of the LKPD investigation
was carried out in line with the practicality stage,
using pre-experimental research with the model of the
research design was "The One-Shot Case Study"
(Sugiyono, 2007). The effectiveness observed was
about the mathematics learning outcomes of
calculating fractions and material Fara'id after
participating in learning. Data were analyzed
descriptively and used very valid, valid, quite valid,
less valid, invalid categories. For practicality using
criteria is very practical, practical, quite practical, less
practical, and not practical. While the effectiveness of
the devices developed is said to be effective if it
achieves classical learning completeness, namely the
KKM value (Minimum Completion Criteria) 75 for
each mathematics and religious material (Fara'id
science).
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