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DAFTAR ISI

HALAMAN SAMPUL .........................................................................................................

i

HALAMAN JUDUL ............................................................................................................

ii

HALAMAN PERSETUJUAN ...............................................................................................

iii

HALAMAN PENGESAHAN ................................................................................................

iv

HALAMAN PERSEMBAHAN .............................................................................................

v

KATA PENGANTAR...........................................................................................................

vi

DAFTAR ISI ....................................................................................................................... viii DAFTAR TABEL .................................................................................................................

xii

DAFTAR GAMBAR ............................................................................................................ xiii DAFTAR LAMPIRAN ......................................................................................................... xiv ABSTRAK .......................................................................................................................... xvi

BAB

I

: PENDAHULUAN A. Latar Belakang ...................................................................................

1

B. Penegasan Istilah ...............................................................................

9

C. Fokus Penelitian ................................................................................ 12 D. Tujuan Penelitian ............................................................................... 12 E. Manfaat Penelitian ............................................................................ 12 F. Sistematika Penelitian ....................................................................... 13

BAB

II

: KAJIAN TEORI A. Belajar Matematika ...........................................................................

14

1. Hakikat Matematika ....................................................................

14

2. Belajar Matematika.....................................................................

19

3. Belajar Mengajar Matematika ....................................................

21

B. Kooperatif Learning Dalam Pembelajaran Matematika .................... 33 C. Pembelajaran Kooperatif Model Group Investigation (GI)................ 48 D. Konsep Garis Singgung Lingkaran ...................................................... 55 E. Aktifitas Pembelajaran Konsep Lingkaran dalam Pendekatan Pembelajaran

BAB

III

Kooperatif GI (Group Investigation) ..................................................

59

Paradigma Penelitian ...............................................................................

64

: METODE PENELITIAN A. Pendekatan Dan Jenis Penelitian ......................................................

65

B. Lokasi Penelitian ...............................................................................

71

C. Kehadiran Peneliti .............................................................................

72

D. Data Dan Sumber Data .....................................................................

73

1. Data ............................................................................................

73

2. Sumber data ...............................................................................

74

E. Sampling dan Instrumen Penelitian ..................................................

74

1.

Sampling Penelitian ....................................................................

74

2.

Instrumen Penelitian ..................................................................

75

F. Teknik Analisis Data ..........................................................................

79

1. Reduksi Data ..............................................................................

79

2. Penyajian Data ............................................................................

81

BAB

IV

3. Penarikan Kesimpulan dan Verifikasi ..........................................

82

G. Pengecekan Keabsahan Data ............................................................

82

1. Ketekunan Pengamatan ..............................................................

82

2. Trianggulasi .................................................................................

83

3. Pengecekan Teman Sejawat melalui diskusi...............................

83

H. Tahap-Tahap Penelitian .....................................................................

84

a. Tahap Pendahuluan / Refleksi Awal............................................

84

b. Tahap Pelaksanaan .....................................................................

85

: PAPARAN DATA, TEMUAN PENELITIAN DAN PEMBAHASAN A. Deskripsi Lokasi Penelitian ................................................................

89

1. Sejarah berdirinya SMP Al-Hikmah Balongrejo Sumobito Jombang ................................................................................................ 89 2. Letak Geografis ...........................................................................

90

3. Keadaan Siswa.............................................................................

91

4. Keadaan Guru dan Karyawan ......................................................

92

5. Keadaan Sarana dan Prasarana...................................................

94

6. Struktur Organisasi Sekolah ........................................................

94

B. Paparan Data .....................................................................................

96

1. Paparan Data Pratindakan ..........................................................

96

2. Paparan Data Tindakan Siklus I ................................................... 100 3. Paparan data Tindakan siklus II................................................... 121 C. Temuan Penelitian ............................................................................. 135 D. Pembahasan ...................................................................................... 136

BAB

V

: PENUTUP A. Kesimpulan ........................................................................................ 139 B. Saran .................................................................................................. 141

DAFTAR PUSTAKA DAFTAR LAMPIRAN