Psychological Symptom of Mathematics Learner

Psychological Symptom of Mathematics Learner
To know the psychological symptom of a mathematics learner, I will try to use a correspondent to solve a story question about mathematics. Here is the data of my correspondent :
Name : Muhammad Hafidh Al-Hakim
Class : VIII
School : SMP N 1 Banguntapan
Genre : Male
Age : 13
Place : Home
Time : 06.45 PM
Material : Phytagoras
Category of question : Easy
Here is the question :
A child which have 1,2 meters tall playing kite which thread have length of 130 meters. The distance of that child and a point under the kite are 50 meters. Calculate the high of that kite !
And here is the result of my correspondence answer :
The length of the thread (c) = 130 m
The distance of the child with a point under the kite (b) = 50 meters
The length of the kite minus the high of the child (a) = ?
a² = c² - b²
a² = 130² -50²
a² = 16900 - 2500
a² = 14400
a = 120
So, the high of the kite is 120 meters + 1,2 meters = 121.2meters. (the answer is correct)
When I give this question to my correspondent, he show antusiasm act. Then, he doing the question seriously, and finishing that question less than five minute without any difficulty. After finishing this question, I’m talking with him about the lesson study of mathematics in his school. From the interview, I get some information, mathematics is his favorite lesson since he was in Elementary School, and he said that mathematics is not difficult. His father always told him to learn mathematics seriously. Other thing that supporting him to learn mathematics is the teacher in his school teaching mathematics well, although the teacher is little bit fierce. The teacher use some method when the lesson study process was happened, there are discussion in a group about Phytagorean material to prove the formula of phytagoras. My correspondent is a clever student in mathematics, he always get the highest value in mathematics lesson since he was in elementary school.
So, we can conclude psychological symptom of a person influenced by some factor both of internal factor and external factor. The positive factor for example motivation, tools and infrastructure, and good method used by the teacher will create student’s good understanding of the lesson material, and hence there will be a positive psychological symptom like feeling happy and high spirit and motivation.