This article aims to describe validity of the learning of differential concept using the context of climate change viewed from some practitioners. The activity design that has been made needs to be tested for validity by experts and practitioners. The method used was a design study involving preliminary design, including self-assessment, peer review, and individual, small group, and field testing. However, this article only covered the peer review phase. It aims to illustrate early learning of mathematics using differential concepts in the context of climate change from an experienced perspective. The study includes evaluations by teachers with experience in school learning. Documents and questionnaires were used as data collection techniques. The method used was a design study involving preliminary design, including self-assessment, peer review, and individual, small group, and field testing. This article only covered the peer review phase. It aims to illustrate early learning of mathematics using differential concepts in the context of climate change from an experienced perspective. The study includes evaluations by teachers with experience in school learning. Documents and questionnaires were used as data collection techniques.

1.
R.
Desfitri
,
J. Phys. Conf. Ser.
,
693
, (
2016
).
2.
B.
Nurwahyu
,
Konf. Mat. Nas. XVI.
, (
2012
)
3.
M.
Asiala
,
J.
Cottrill
,
E.
Dubinsky
, and
K.E.
Schwingendorf
,
J. of Math. Behavior
,
16
,
399
431
(
1997
)
4.
S.W.
Siyepu
,
J. of Math. Behavior
,
32
,
577
592
(
2013
).
5.
M.
Zandieh
,
CBMS Issues in Math. Educ.
,
8
,
103
122
, (
2000
).
6.
M.J.
Zandieh
, and
J.
Knapp
,
J. of Math. Behavior
,
25
,
1
17
, (
2006
).
7.
E.
Monariska
,
J. Analisa
,
5
,
9
19
, (
2019
).
8.
S.
Habre
,
J. of Math. Behavior
,
18
,
455
472
, (
2000
).
9.
P.
Tsamir
,
S.
Rasslan
, and
T.
Dreyfus
,
J. of Math. Behavior
,
25
,
240
251
, (
2006
).
10.
D. G.
Denbel
,
J. of Educ. and Prac.
,
5
,
24
41
, (
2014
).
11.
C.
Byerley
,
N.
Hatfield
, and
P.W.
Thompson
,
Proceedings of the 15th Annual Conference on Research in Undergraduate Mathematics Education
,
358
363
, (
2012
).
12.
K. L.
Borgen
, and
S.S
Manu
,
J. of Math. Behavior
,
21
,
151
165
, (
2002
).
13.
Kementerian Lingkungan Hidup dan kehutanan
.
Kebijakan Penanganan Perubahan di Tingkat Nasional dan Internasional
, (
2016
).
14.
Y.
Abtahi
,
P.
Gøtze
,
L.
Steffensen
,
K.H.
Hauge
, and
R.
Barwell
,
Philosophy of Math. Educ. J.
,
32
, (
2017
).
15.
A. K.
Cheng
,
Mathematical modelling for teachers: Resources, pedagogy and practice.
(
Routledge
,
2018
).
16.
W.
Blum
, and
R. B.
Ferri
,
J. of Math Modelling and Application
,
1
,
45
58
, (
2009
).
17.
Consortium for Mathematics and its Applications (COMAP) & Society for Industrial and Applied Mathematics (SIAM)
,
Guidelines for Assessment & Instruction in Mathematical Modeling Education.
(
COMAP & SIAM
,
2016
).
18.
M.
Tessemer
,
Planning and Conducting Formative Evaluations: Improving the Quality of Education and Training,
(
1993
).
19.
L. R.
Aiken
,
Educ. Psychol. Meas
,
45
,
131
142
(
1985
).
20.
Intergovernmental Panel on Climate Change
.
Climate change 2013: The physical science basis.
(
Cambridge University Press
,
2013
).
21.
A. A.
Adeleke
and
E. O.
Joshua
,
J. of Education and Practice
,
6
,
28
42
, (
2015
).
22.
T. M.
Haladyna
and
M. C.
Rodgiguez
,
Developing and validating test items
, (
Routledge
,
2013
).
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