can be observed that students have varying 
conceptions of knowledge, which are dependent on 
their individual experiences and the particular 
interpretive frameworks they employ. 
The basic principle of constructivism is that all 
knowledge is constructed not for direct perception by 
the five senses but rather for interpretation by the 
human brain. Knowledge itself is nothing more than 
an accumulation of prior experience. This claim was 
confirmed by the author's research (Nurhidayati, 
2017a), from which it can be inferred that the basic 
principle of the constructivist education of thought is 
that all knowledge is created rather than directly 
perceived by the senses (smell, touch, hearing, touch, 
and so on), contrary to what realists generally believe. 
(Haryanto, 2012) claims that thought is subjective in 
his work. As a result, according to the constructivist 
school of thought, knowledge is created via 
understanding and experience. The constructivism 
philosophy is influenced and more readily identified 
by the name "The Paradigm of Clutter" since the 
nature and outcomes of subjective thinking are 
unknown and depend on each individual. 
The constructivism theory must collaborate with 
other concepts, such as the relationship between 
social interaction and biologically active learning, to 
be effective in practice. This statement is supported 
by research (Nurhidayati, 2017b), from which the 
author can draw the following conclusion: "There is 
no single theory of constructivism, but there are at 
least two main ideas that are the same; first, active 
learners are, biologically speaking, engaged in 
creating their knowledge; and second, social 
interaction is a crucial component in the creation of 
knowledge. Consequently, these two components 
lead to a person's behavior. 
It is consistent with mathematics, which studies 
many abstract structures and their connections. For 
students to fully understand the abstract structure of 
mathematics, practical principles must be used during 
the learning process. The idea that arithmetic 
instruction should be relevant may be applied to 
learning, particularly in primary schools. Italigns with 
the constructivism education theory, which holds that 
there are two learning processes: teaching and 
learning.  
According to constructivism, learning primarily 
focuses on helping students give meaning to what 
they are taught using their prior knowledge and 
understanding. By supporting the teacher's creativity 
as a learning mediator, more focus is placed on 
creating meaningful connections between prior 
knowledge and new knowledge in this process. 
According to the constructivist model of learning, 
students prior information and ideas are modified to 
create new knowledge (Sani, 2013). 
According to a constructivist perspective on 
learning, numerous key factors affect a learning 
activity's success, including (von Glaserfeld in 
Pannen et al., 2001: 3): a) The teacher's function as a 
mediator and facilitator in a variety of tasks: (1) 
offering educational opportunities that allow students 
to take charge of their designs, research, and 
procedures; (2) offering resources that encourage 
students to think critically; (3) inspiring students and 
exposing them to conflict; (1) Students are 
accountable for their learning results. The teacher 
assists students in evaluating their hypotheses and 
conclusions. They incorporate ancient knowledge 
into new learning contexts. (2) Students must have 
experience formulating and testing hypotheses, 
manipulating objects, finding solutions to problems, 
describing, researching, dialogue, holding reflections, 
expressing questions, and expressing ideas to form 
new constructions. (3) They must be able to judge 
what they learn by looking for meaning and 
comparing it to what they already know (Umbara, 
2017). 
Constructivism defines teaching as assisting a 
student in creating his knowledge. Teaching is not 
about passing knowledge from those who already 
know it (teachers) to those who do not (students), but 
rather about assisting someone in building their 
knowledge through activities related to the 
phenomena and objects they are interested in learning 
about. According to the constructivist viewpoint, 
several tasks need to be completed, and some ideas 
that the teacher has to be conscious of when 
instructing, such as: a) the instructor needs to engage 
with students frequently to understand what they 
already know and believe more fully. b) To involve 
students, goals and what will be made in class should 
be discussed. c) Teachers must comprehend which 
learning opportunities best meet the demands of their 
students. Participating as a student among other 
students is one way to accomplish this. d) Assistance 
with kids who are having difficulty learning is 
necessary. e) Teachers must be flexible in their 
thinking to comprehend and value students' ideas 
since sometimes students form opinions based on 
premises that the teacher does not share. According 
to constructivism, there are three main components of 
teaching: a) adaptation, which is accomplished 
through assimilation and accommodation; b) 
concepts in the environment; and c) the creation of 
meaning.  
According to Piaget's theory of intellectual 
development, children in elementary school (6 - 12