Conceptual understanding skills is very important for student as fundamental learning to solve problem and to develop knowledge from various experiences or previous understanding. The successful learning on mathematic need of mathematical conversant from each learner. Mathematic practitioner highly hope could create mathematically proficient individuals. This study aims to describe the success and challenges of proficient students in implementing conceptual understanding to solve mathematical problems. It used the descriptive qualitative method. The data were collected through tests and semi-structured interviews. Purposive sampling was use to choose the research subject, that were three students who got the highest score on mathematic last examination from acceleration class of SMAN 11 Tangerang. Then, the data were analyzed through data reduction, data presentation, and drawing conclusions. Validity of data using technical triangulation. As a result, the students with proficient category have both achievement and obstacle in order to implement conceptual understanding on mathematical problem. As for obstacle problem shown where they could not restate the early stage of problem solving. While, their excess looked from how they use trial and error strategy in problem solving contexts. This strategy came from any idea and logically thought from any previous understanding which each student has in this category.

1.
Ignacio
NG
,
Nieto
LJB
,
Barona
EG
.
The Affective Domain in Mathematics Learning
.
Int Electron J Math Educ.
2006
;
1
(
1
):
16
32
.
2.
Ernest
P
,
Skovsmose
O
,
Paul
van Bendegem
J,
Bicudo
M
,
Miarka
R
,
Kvasz
L
, et al 
The Philosophy of Mathematics Education
.
Springer Nature
;
2016
.
3.
Kemendikbud
RI
.
Lampiran Peraturan Menteri Pendidikan dan Kebudayaan Nomor 20 Tahun 2016 tentang Standar Kompetensi Lulusan Pendidikan Dasar dan Menengah. In
2016
. p.
1
8
.
4.
National Council Of Teachers Of Mathematics
.
Principles and Standards for School Mathematics. Sch Sci Math [Internet].
2000
;
47
(
8
):
868
279
. Available from: www.nctm.org
5.
Mason
L.
High School Students’ Beliefs about Maths, Mathematical Problem Solving, and their Achievement in Maths: A cross-sectional Study
.
Educ Psychol.
2003
;
23
(
1
):
73
85
.
6.
Fennema
E
,
Romberg
TA
.
Mathematics Classrooms That Promote Understanding
.
Routledge
;
1999
.
216
p.
7.
Salim
Nahdi
D,
Gilar
Jatisunda
M.
Conceptual Understanding And Procedural Knowledge: A Case Study on Learning Mathematics of Fractional Material in Elementary School
.
J Phys Conf Ser.
2020
Mar;
1477
(
4
):
042037
.
8.
An
S
,
Kulm
G
,
Wu
Z.
The Pedagogical Content Knowledge of Middle School, Mathematics Teachers in China and the U.S. J Math Teach Educ.
2004
;
7
(
2
):
145
72
.
9.
Kholid
MN
,
Imawati
A
,
Swastika
A
,
Maharani
S
,
Pradana
LN
.
How are Students’ Conceptual Understanding for Solving Mathematical Problem?
J Phys Conf Ser.
2021
;
1776
(
1
):
012018
.
10.
Sudjana
N.
Penilaian hasil proses belajar mengajar
.
Bandung: PT
.
Remaja Rosdakarya
;
2006
.
11.
Novitasari L dan L.
Pengaruh
Kemampuan Pemahaman Konsep Matematika terhadap Hasil Belajar Matematika. Pros Disk Panel Nas Pendidik Mat Fak Tek Mat dan Ilmu Pengetah Alam Univ Indraprasta PGRI.
2017
;
758
66
.
12.
Niemi
D.
Assessing conceptual understanding in mathematics: Representations, problem solutions, justifications, and explanations
.
J Educ Res.
1996
;
89
(
6
):
351
63
.
13.
Mulyono
B
,
Hapizah
H.
Pemahaman Konsep dalam Pembelajaran Matematika
.
KALAMATIKA J Pendidik Mat [Internet].
2018
Oct 31;
3
(
2
):
103
22
. Available from: http://kalamatika.matematika-uhamka.com/index.php/kmk/article/view/46
14.
Luneta
K.
Understanding students’ misconceptions: An analysis of final grade 12 examination questions in geometry
.
Pythagoras.
2015
;
36
(
1
):
1
11
.
15.
Made
Suarsana
I,
Widiasih
NPS
,
Nengah
Suparta
I.
The effect of brain based learning on second grade junior students’ mathematics conceptual understanding on polyhedron
.
J Math Educ.
2018
;
9
(
1
):
145
55
.
16.
Mullis
IVS
,
Martin
MO
.
TIMSS 2019 Assessment Frameworks
.
United States
:
TIMSS & PIRLS International Study Center
;
2017
.
17.
Mullis
IVS
,
Martin
MO
,
Foy
P
,
Hooper
M.
TIMSS 2015 International Results in Mathematics. TIMSS PIRLS Int Study Cent Bost Coll [Internet].
2016
; Available from: http://timssandpirls.bc.edu/timss2015/international-results/
18.
OECD
.
What Students Know and Can Do. In: PISA 2009 at a Glance.
2019
.
19.
Prastyo
H.
Kemampuan Matematika Siswa Indonesia Berdasarkan TIMSS
.
J Padegogik [Internet].
2020
;
3
(
2
):
111
7
. Available from:
20.
Hidayat
R
,
Iksan
ZH
.
The Effect of Realistic Mathematic Education on Students’ Conceptual Understanding of Linear Progamming
.
Creat Educ.
2015
;
06
(
22
):
2438
45
.
21.
Diana
P
,
Marethi
I
,
Pamungkas
AS
.
Kemampuan Pemahaman Konsep Matematis Siswa: Ditinjau dari Kategori Kecemasan Matematik
.
SJME (Supremum J Math Educ.
2020
;
4
(
1
):
24
.
22.
Mukrimatin
NA
,
Murtono
M
,
Wanabuliandari
S.
Pemahaman Konsep Matematika Siswa Kelas V SD Negeri Rau Kedung Jepara Pada Materi Perkalian Pecahan
.
ANARGYA J Ilm Pendidik Mat.
2018
;
1
(
1
):
67
71
.
23.
Pranata
E.
Implementasi Model Pembelajaran Group Investigation (GI) Berbantuan Alat Peraga Untuk Meningkatkan Kemampuan Pemahaman Konsep Matematika
.
JPMI (Jurnal Pendidik Mat Indones.
2016
;
1
(
1
):
34
.
24.
Putra
A
,
Syarifuddin
H
,
Zulfah
Z.
Validitas Lembar Kerja Peserta Didik Berbasis Penemuan Terbimbing dalam Upaya Meningkatkan Pemahaman Konsep dan Kemampuan Penalaran Matematis
.
Edumatika J Ris Pendidik Mat.
2018
;
1
(
2
):
56
.
25.
Council
NR
,
Committee
MLS
.
Adding It Up: Helping Children Learn Mathematics [Internet]
.
Kilpatrick
J
,
Swafford
J
,
Findell
B
, editors.
Washington, DC
:
The National Academies Press
;
2001
. Available from: https://www.nap.edu/catalog/9822/adding-it-up-helping-children-learn-mathematics
26.
Schoenfeld
AH
.
Assessing mathematical proficiency. Vol. 53
.
Cambridge university press
;
2007
.
27.
Peraturan Menteri Pendidikan Nasional Republik Indonesia Nomor 22 Tahun 2006 tentang Standar Isi untuk Satuan Pendidikan Dasar dan Menengah
. In
Jakarta: Sekretariat Negara
;
2006
. p.
5
65
.
28.
Harvey
J.
The Problem with “Proficient
”.
Educ Leadersh.
2018
;
75
(
5
):
64
9
.
29.
Wardhani S. Analisis SI dan SKL
Mata
Pelajaran Matematika SMP/MTS Untuk Optimalisasi Pencapaian Tujuan. Pus Pengemb dan Pemberdaya Pendidik dan Tenaga Kependidikan Mat.
2008
;
9
10
.
30.
Nugrahani
F.
Metode Penelitian Kualitatif dalam Penelitian Pendidikan Bahasa [Internet]
.
Surakarta
:
Cakra Books
;
2014
.
305
p. Available from: http://digilibfkip.univetbantara.ac.id/materi/Buku.pdf
31.
Sugiyono
.
Metode Penelitian dan Pengembangan (Research and Development/ R&D)
.
Bandung: Alfabeta
;
2019
.
32.
Arikunto
S.
Dasar-Dasar Evaluasi Pendidikan Edisi 3. 3rd
ed.
Jakarta: PT Bumi Aksara
;
2021
.
42
45 p
.
33.
Sugiyono
.
Metode Penelitian Kuantitatif
,
Kualitatif dan R&D
.
Bandung: Alfabeta
;
2016
.
34.
Piez
CM
,
Voxman
MH
.
Multiple representations—Using different perspectives to form a clearer picture
.
Math Teach [Internet].
1997
;
90
(
2
):
164
6
. Available from:
35.
Pape
SJ
,
Tchoshanov
MA
.
The Role of Representation(s) in Developing Mathematical Understanding
.
Theory Pract [Internet].
2001
May 1;
40
(
2
):
118
27
. Available from:
36.
Howard F.
Fehr
.
The role of insight in the learning of mathematics
.
Math Teach.
1954
;
47
(
6
):
386
392
.
37.
Scheerer
M.
PROBLEM-SOLVING. Sci Am [Internet].
1963
Apr 28;
208
(
4
):
118
31
. Available from: http://www.jstor.org/stable/24936537
38.
Jonassen
DH
.
Learning to Solve Problems. A Handbook for Designing Problem-Solving Learning Environment
.
New York: Routledge
;
2011
.
39.
Kholid
MN
,
Sa’dijah
C
,
Hidayanto
E
,
Permadi
H.
How are students’ reflective thinking for problem solving?
J Educ Gift Young Sci.
2020
;
8
(
3
):
1135
46
.
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