classroom system for teaching and creating a 
harmonious teaching and learning climate. 
The problem of managing classes is not a 
light task. Various factors are that cause the 
complexity. In general, the factors that influence 
classroom management are divided into two 
groups, namely Aldo Enrico (2014: 5), student 
internal factors and student external factors. 
Internal student factors are related to emotional, 
thought, and behavioural problems. Students' 
personalities with their respective characteristics 
lead students to be from other students 
individually. This difference between 
individuals is seen from biological, intellectual, 
and psychological differences. While the 
external factors of students are related to 
problems in the atmosphere of the learning 
environment, student placement, grouping of 
students, number of students in the class, and so 
on. The problem of the number of students in 
the class will colour the dynamics of the class, 
and the more number of students in the class, 
for example 30 people tend to be younger and 
conflict occurs. Conversely, the fewer numbers 
of students in the classroom tend to be smaller 
in conflict. As long as there is an effort from the 
teacher, chaos in the class can certainly be 
overcome. Admittedly, class, from time to time, 
from day to day, today, tomorrow, or the day 
after tomorrow, always shows a different 
atmosphere. Yesterday the class atmosphere 
was calm. Maybe today the atmosphere of class 
is noisy and hot. At times, the learning goodness 
of students is interrupted by the coming of 
disturbances from outside the classroom in 
various forms and types, for example there are 
fires around the school, there are thieves in 
broad daylight, and there is a motor vehicle 
collision and its luggage. 
2.2  Student Learning Achievement 
Learning is an important process for changing 
human behaviour and includes everything that is 
thought and done. Learning plays an important role 
in development, habits, attitudes, beliefs, goals, 
personality, and even human perception. Learning 
according to James, W. (1890), "Learning may be 
defined as the process by which behavior originates 
or is through training or experience. Learning can be 
defined as the process of generating or changing 
behavior through practice or experience. Learning is 
a mental / psychic activity in active interaction with 
the environment, which results in changes in 
understanding knowledge, skills and attitudes. 
Learning is a series of activities of the soul of the 
body to obtain a change in behaviour as a result of 
individual experience in interaction with the 
environment concerning cognitive, affective, and 
psychomotor. 
Bjorklund, D.F. (1995), also formulates the 
notion of learning, namely a business process carried 
out by individuals to obtain a new behaviour change 
as a whole as a result of the individual's own 
experience in interaction with the environment. 
From some of the opinions above it can be 
concluded that learning is a process of change in 
human beings that appears in behavioural changes 
such as habits, knowledge, attitudes, skills, and 
thinking power. 
2.2.1 Learning 
Learning can be in the form of students, learners, 
learning citizens, and trainees. Learners have 
sensory organs that are used to capture brain stimuli 
that are used to transform their sensing results into 
complex memory and the nerves or muscles used to 
display performance that shows what has been 
learned. 
2.2.2 Stimulus 
Events that stimulate learner sensing are called 
stimulus situations. Examples of these stimuli are 
sound, light, color, heat, cold, plants, buildings, and 
people. In order for learners to be able to learn 
optimally, they must focus on certain stimuli that are 
of interest. 
2.2.3 Memory 
Learning memory contains various abilities in the 
form of knowledge, skills, and attitudes that result 
from previous learning activities. 
2.2.4 Response 
Response is an action that results from memory 
actualization. The learner who is observing the 
stimulus, then the memory inside him then responds 
to the stimulus. 
 
3 METHOD 
This research is correlation research which aims to 
find out whether there is a relationship between 
independent variables with non-independent 
variables and the extent of the correlation between