2nd Grade Introducing Math & Science Workbook
Current Explanation
Math - Chapter 1 - 1.1 - 1.1 - Page 10
Explanation playlist
Math
Math
Chapter 1
Chapter 1
1.1
1.1
Math - Chapter 1 - 1.1 - 1.1 - Page 10
Math - Chapter 1 - 1.1 - 1.1 - Page 14
Math - Chapter 1 - 1.1 - 1.1 - Page 15
Math - Chapter 1 - 1.1 - 1.1 - Page 16
Math - Chapter 1 - 1.1 - 1.1 - Page 17
Math - Chapter 1 - 1.1 - 1.1 - Page 11
Math - Chapter 1 - 1.1 - 1.1 - Page 12
Math - Chapter 1 - 1.1 - 1.1 - Page 13
1.2
1.2
Math - Chapter 1 - 1.2 - 1.2 - Page 20
Math - Chapter 1 - 1.2 - 1.2 - Page 21
Math - Chapter 1 - 1.2 - 1.2 - Page 18
Math - Chapter 1 - 1.2 - 1.2 - Page 19
Math - Chapter 1 - 1.2 - 1.2 - Page 22
1.3
1.3
Math - Chapter 1 - 1.3 - 1.3A - Page 27
Math - Chapter 1 - 1.3 - 1.3A - Page 28
Math - Chapter 1 - 1.3 - 1.3B - Page 31
Math - Chapter 1 - 1.3 - 1.3B - Page 32
Math - Chapter 1 - 1.3 - 1.3B - Page 30
Math - Chapter 1 - 1.3 - 1.3B - Page 36
Math - Chapter 1 - 1.3 - 1.3A - Page 26
Math - Chapter 1 - 1.3 - 1.3B - Page 34
Math - Chapter 1 - 1.3 - 1.3A - Page 23
Math - Chapter 1 - 1.3 - 1.3A - Page 24
Math - Chapter 1 - 1.3 - 1.3A - Page 25
Math - Chapter 1 - 1.3 - 1.3B - Page 29
Math - Chapter 1 - 1.3 - 1.3B - Page 33
Math - Chapter 1 - 1.3 - 1.3B - Page 35
Chapter 2
Chapter 2
2.1
2.1
Math - Chapter 2 - 2.1 - 2.1A - Page 40
Math - Chapter 2 - 2.1 - 2.1A - Page 42
Math - Chapter 2 - 2.1 - 2.1A - Page 45
Math - Chapter 2 - 2.1 - 2.1B - Page 46
Math - Chapter 2 - 2.1 - 2.1B - Page 47
Math - Chapter 2 - 2.1 - 2.1B - Page 50
Math - Chapter 2 - 2.1 - 2.1B - Page 51
Math - Chapter 2 - 2.1 - 2.1C - Page 56
Math - Chapter 2 - 2.1 - 2.1A - Page 44
Math - Chapter 2 - 2.1 - 2.1C - Page 55
Math - Chapter 2 - 2.1 - 2.1C - Page 58
Math - Chapter 2 - 2.1 - 2.1A - Page 41
Math - Chapter 2 - 2.1 - 2.1B - Page 52
Math - Chapter 2 - 2.1 - 2.1C - Page 57
Math - Chapter 2 - 2.1 - 2.1A - Page 43
Math - Chapter 2 - 2.1 - 2.1B - Page 48
Math - Chapter 2 - 2.1 - 2.1B - Page 49
Math - Chapter 2 - 2.1 - 2.1C - Page 53
Math - Chapter 2 - 2.1 - 2.1C - Page 54
Math - Chapter 2 - 2.1 - 2.1D - Page 61
Math - Chapter 2 - 2.1 - 2.1D - Page 59
Math - Chapter 2 - 2.1 - 2.1D - Page 62
Math - Chapter 2 - 2.1 - 2.1D - Page 63
Math - Chapter 2 - 2.1 - 2.1D - Page 64
Math - Chapter 2 - 2.1 - 2.1D - Page 60
2.2
2.2
Math - Chapter 2 - 2.2 - 2.2A - Page 65
Math - Chapter 2 - 2.2 - 2.2C - Page 75
Math - Chapter 2 - 2.2 - 2.2C - Page 82
Math - Chapter 2 - 2.2 - 2.2D - Page 88
Math - Chapter 2 - 2.2 - 2.2B - Page 72
Math - Chapter 2 - 2.2 - 2.2C - Page 79
Math - Chapter 2 - 2.2 - 2.2D - Page 84
Math - Chapter 2 - 2.2 - 2.2E - Page 92
Math - Chapter 2 - 2.2 - 2.2A - Page 66
Math - Chapter 2 - 2.2 - 2.2B - Page 74
Math - Chapter 2 - 2.2 - 2.2C - Page 77
Math - Chapter 2 - 2.2 - 2.2C - Page 78
Math - Chapter 2 - 2.2 - 2.2E - Page 90
Math - Chapter 2 - 2.2 - 2.2E - Page 91
Math - Chapter 2 - 2.2 - 2.2E - Page 95
Math - Chapter 2 - 2.2 - 2.2A - Page 67
Math - Chapter 2 - 2.2 - 2.2A - Page 68
Math - Chapter 2 - 2.2 - 2.2C - Page 76
Math - Chapter 2 - 2.2 - 2.2E - Page 89
Math - Chapter 2 - 2.2 - 2.2B - Page 70
Math - Chapter 2 - 2.2 - 2.2B - Page 71
Math - Chapter 2 - 2.2 - 2.2C - Page 81
Math - Chapter 2 - 2.2 - 2.2E - Page 93
Math - Chapter 2 - 2.2 - 2.2E - Page 94
Math - Chapter 2 - 2.2 - 2.2C - Page 80
Math - Chapter 2 - 2.2 - 2.2D - Page 85
Math - Chapter 2 - 2.2 - 2.2D - Page 86
Math - Chapter 2 - 2.2 - 2.2A - Page 69
Math - Chapter 2 - 2.2 - 2.2B - Page 73
Math - Chapter 2 - 2.2 - 2.2C - Page 83
Math - Chapter 2 - 2.2 - 2.2D - Page 87
Chapter 3
Chapter 3
3.1
3.1
Math - Chapter 3 - 3.1 - 3.1A - Page 99
Math - Chapter 3 - 3.1 - 3.1A - Page 103
Math - Chapter 3 - 3.1 - 3.1A - Page 105
Math - Chapter 3 - 3.1 - 3.1B - Page 106
Math - Chapter 3 - 3.1 - 3.1B - Page 107
Math - Chapter 3 - 3.1 - 3.1A - Page 104
Math - Chapter 3 - 3.1 - 3.1A - Page 98
Math - Chapter 3 - 3.1 - 3.1A - Page 100
Math - Chapter 3 - 3.1 - 3.1A - Page 101
Math - Chapter 3 - 3.1 - 3.1A - Page 102
Math - Chapter 3 - 3.1 - 3.1B - Page 108
Math - Chapter 3 - 3.1 - 3.1B - Page 109
Math - Chapter 3 - 3.1 - 3.1B - Page 110
Math - Chapter 3 - 3.1 - 3.1C - Page 113
Math - Chapter 3 - 3.1 - 3.1C - Page 114
Math - Chapter 3 - 3.1 - 3.1D - Page 119
Math - Chapter 3 - 3.1 - 3.1B - Page 111
Math - Chapter 3 - 3.1 - 3.1C - Page 116
Math - Chapter 3 - 3.1 - 3.1C - Page 112
Math - Chapter 3 - 3.1 - 3.1D - Page 118
Math - Chapter 3 - 3.1 - 3.1D - Page 122
Math - Chapter 3 - 3.1 - 3.1C - Page 115
Math - Chapter 3 - 3.1 - 3.1C - Page 117
Math - Chapter 3 - 3.1 - 3.1D - Page 120
Math - Chapter 3 - 3.1 - 3.1D - Page 121
Math - Chapter 3 - 3.1 - 3.1D - Page 123
Math - Chapter 3 - 3.1 - 3.1D - Page 124
3.2
3.2
Math - Chapter 3 - 3.2 - 3.2B - Page 138
Math - Chapter 3 - 3.2 - 3.2A - Page 125
Math - Chapter 3 - 3.2 - 3.2A - Page 126
Math - Chapter 3 - 3.2 - 3.2A - Page 128
Math - Chapter 3 - 3.2 - 3.2B - Page 139
Math - Chapter 3 - 3.2 - 3.2A - Page 127
Math - Chapter 3 - 3.2 - 3.2A - Page 129
Math - Chapter 3 - 3.2 - 3.2B - Page 133
Math - Chapter 3 - 3.2 - 3.2B - Page 134
Math - Chapter 3 - 3.2 - 3.2B - Page 136
Math - Chapter 3 - 3.2 - 3.2B - Page 137
Math - Chapter 3 - 3.2 - 3.2A - Page 130
Math - Chapter 3 - 3.2 - 3.2A - Page 131
Math - Chapter 3 - 3.2 - 3.2B - Page 132
Math - Chapter 3 - 3.2 - 3.2B - Page 135
3.3
3.3
Math - Chapter 3 - 3.3 - 3.3A - Page 141
Math - Chapter 3 - 3.3 - 3.3A - Page 144
Math - Chapter 3 - 3.3 - 3.3A - Page 145
Math - Chapter 3 - 3.3 - 3.3A - Page 147
Math - Chapter 3 - 3.3 - 3.3B - Page 148
Math - Chapter 3 - 3.3 - 3.3B - Page 153
Math - Chapter 3 - 3.3 - 3.3A - Page 140
Math - Chapter 3 - 3.3 - 3.3B - Page 149
Math - Chapter 3 - 3.3 - 3.3A - Page 142
Math - Chapter 3 - 3.3 - 3.3A - Page 143
Math - Chapter 3 - 3.3 - 3.3A - Page 146
Math - Chapter 3 - 3.3 - 3.3B - Page 150
Math - Chapter 3 - 3.3 - 3.3B - Page 151
Math - Chapter 3 - 3.3 - 3.3B - Page 152
3.4
3.4
Math - Chapter 3 - 3.4 - 3.4A - Page 158
Math - Chapter 3 - 3.4 - 3.4B - Page 162
Math - Chapter 3 - 3.4 - 3.4A - Page 154
Math - Chapter 3 - 3.4 - 3.4A - Page 155
Math - Chapter 3 - 3.4 - 3.4A - Page 157
Math - Chapter 3 - 3.4 - 3.4A - Page 160
Math - Chapter 3 - 3.4 - 3.4A - Page 161
Math - Chapter 3 - 3.4 - 3.4B - Page 165
Math - Chapter 3 - 3.4 - 3.4B - Page 166
Math - Chapter 3 - 3.4 - 3.4B - Page 167
Math - Chapter 3 - 3.4 - 3.4B - Page 169
Math - Chapter 3 - 3.4 - 3.4A - Page 159
Math - Chapter 3 - 3.4 - 3.4B - Page 164
Math - Chapter 3 - 3.4 - 3.4B - Page 163
Math - Chapter 3 - 3.4 - 3.4A - Page 156
Math - Chapter 3 - 3.4 - 3.4B - Page 168
Chapter 4
Chapter 4
Math - Chapter 4 - 4.1A - Page 176
Math - Chapter 4 - 4.1B - Page 178
Math - Chapter 4 - 4.1B - Page 181
Math - Chapter 4 - 4.1B - Page 182
Math - Chapter 4 - 4.1A - Page 173
Math - Chapter 4 - 4.1B - Page 179
Math - Chapter 4 - 4.1C - Page 185
Math - Chapter 4 - 4.1C - Page 188
Math - Chapter 4 - 4.1C - Page 189
Math - Chapter 4 - 4.1A - Page 172
Math - Chapter 4 - 4.1A - Page 174
Math - Chapter 4 - 4.1A - Page 175
Math - Chapter 4 - 4.1A - Page 177
Math - Chapter 4 - 4.1B - Page 180
Math - Chapter 4 - 4.1C - Page 184
Math - Chapter 4 - 4.1B - Page 183
Math - Chapter 4 - 4.1C - Page 186
Math - Chapter 4 - 4.1C - Page 187
Math - Chapter 4 - 4.1C - Page 190
Science
Science
Chapter 1
Chapter 1
1.1
1.1
Science - Chapter 1 - 1.1 - 1.1C - Page 231
Science - Chapter 1 - 1.1 - 1.1D - Page 233
Science - Chapter 1 - 1.1 - 1.1A - Page 228
Science - Chapter 1 - 1.1 - 1.1D - Page 234
Science - Chapter 1 - 1.1 - 1.1E - Page 235
Science - Chapter 1 - 1.1 - 1.1B - Page 229
Science - Chapter 1 - 1.1 - 1.1B - Page 230
Science - Chapter 1 - 1.1 - 1.1C - Page 232
1.2
1.2
Science - Chapter 1 - 1.2 - 1.2C - Page 238
Science - Chapter 1 - 1.2 - 1.2A - Page 236
Science - Chapter 1 - 1.2 - 1.2C - Page 239
Science - Chapter 1 - 1.2 - 1.2E - Page 242
Science - Chapter 1 - 1.2 - 1.2D - Page 241
Science - Chapter 1 - 1.2 - 1.2B - Page 237
Science - Chapter 1 - 1.2 - 1.2D - Page 240
1.3
1.3
Science - Chapter 1 - 1.3 - 1.3C - Page 246
Science - Chapter 1 - 1.3 - 1.3E - Page 250
Science - Chapter 1 - 1.3 - 1.3B - Page 245
Science - Chapter 1 - 1.3 - 1.3D - Page 248
Science - Chapter 1 - 1.3 - 1.3E - Page 249
Science - Chapter 1 - 1.3 - 1.3D - Page 247
Science - Chapter 1 - 1.3 - 1.3A - Page 243
Science - Chapter 1 - 1.3 - 1.3B - Page 244
1.4
1.4
Science - Chapter 1 - 1.4 - 1.4B - Page 252
Science - Chapter 1 - 1.4 - 1.4D - Page 254
Science - Chapter 1 - 1.4 - 1.4E - Page 255
Science - Chapter 1 - 1.4 - 1.4A - Page 251
Science - Chapter 1 - 1.4 - 1.4C - Page 253
Chapter 2
Chapter 2
2.1
2.1
Science - Chapter 2 - 2.1 - 2.1C - Page 261
Science - Chapter 2 - 2.1 - 2.1B - Page 259
Science - Chapter 2 - 2.1 - 2.1B - Page 260
Science - Chapter 2 - 2.1 - 2.1D - Page 263
Science - Chapter 2 - 2.1 - 2.1A - Page 258
Science - Chapter 2 - 2.1 - 2.1C - Page 262
Science - Chapter 2 - 2.1 - 2.1E - Page 264
2.2
2.2
Science - Chapter 2 - 2.2 - 2.2C - Page 267
Science - Chapter 2 - 2.2 - 2.2C - Page 268
Science - Chapter 2 - 2.2 - 2.2E - Page 270
Science - Chapter 2 - 2.2 - 2.2A - Page 265
Science - Chapter 2 - 2.2 - 2.2B - Page 266
Science - Chapter 2 - 2.2 - 2.2D - Page 269
2.3
2.3
Science - Chapter 2 - 2.3 - 2.3A - Page 271
Science - Chapter 2 - 2.3 - 2.3B - Page 272
Science - Chapter 2 - 2.3 - 2.3E - Page 277
Science - Chapter 2 - 2.3 - 2.3D - Page 274
Science - Chapter 2 - 2.3 - 2.3C - Page 273
Science - Chapter 2 - 2.3 - 2.3D - Page 275
Science - Chapter 2 - 2.3 - 2.3E - Page 276
2.4
2.4
Science - Chapter 2 - 2.4 - 2.4D - Page 281
Science - Chapter 2 - 2.4 - 2.4E - Page 283
Science - Chapter 2 - 2.4 - 2.4A - Page 278
Science - Chapter 2 - 2.4 - 2.4B - Page 279
Science - Chapter 2 - 2.4 - 2.4E - Page 284
Science - Chapter 2 - 2.4 - 2.4C - Page 280
Science - Chapter 2 - 2.4 - 2.4D - Page 282
2.5
2.5
Science - Chapter 2 - 2.5 - 2.5C - Page 287
Science - Chapter 2 - 2.5 - 2.5A - Page 285
Science - Chapter 2 - 2.5 - 2.5D - Page 289
Science - Chapter 2 - 2.5 - 2.5E - Page 290
Science - Chapter 2 - 2.5 - 2.5B - Page 286
Science - Chapter 2 - 2.5 - 2.5C - Page 288
Science - Chapter 2 - 2.5 - 2.5E - Page 291
Chapter 3
Chapter 3
3.1
3.1
Science - Chapter 3 - 3.1 - 3.1D - Page 299
Science - Chapter 3 - 3.1 - 3.1B - Page 295
Science - Chapter 3 - 3.1 - 3.1C - Page 296
Science - Chapter 3 - 3.1 - 3.1A - Page 294
Science - Chapter 3 - 3.1 - 3.1C - Page 297
Science - Chapter 3 - 3.1 - 3.1D - Page 298
Science - Chapter 3 - 3.1 - 3.1E - Page 300
3.2
3.2
Science - Chapter 3 - 3.2 - 3.2A - Page 301
Science - Chapter 3 - 3.2 - 3.2B - Page 302
Science - Chapter 3 - 3.2 - 3.2C - Page 303
Science - Chapter 3 - 3.2 - 3.2D - Page 305
Science - Chapter 3 - 3.2 - 3.2D - Page 306
Science - Chapter 3 - 3.2 - 3.2E - Page 307
Science - Chapter 3 - 3.2 - 3.2C - Page 304
3.3
3.3
Science - Chapter 3 - 3.3 - 3.3A - Page 308
Science - Chapter 3 - 3.3 - 3.3D - Page 313
Science - Chapter 3 - 3.3 - 3.3D - Page 314
Science - Chapter 3 - 3.3 - 3.3E - Page 315
Science - Chapter 3 - 3.3 - 3.3C - Page 312
Science - Chapter 3 - 3.3 - 3.3B - Page 310
Science - Chapter 3 - 3.3 - 3.3C - Page 311
Science - Chapter 3 - 3.3 - 3.3B - Page 309
3.4
3.4
Science - Chapter 3 - 3.4 - 3.4C - Page 318
Science - Chapter 3 - 3.4 - 3.4B - Page 317
Science - Chapter 3 - 3.4 - 3.4E - Page 322
Science - Chapter 3 - 3.4 - 3.4A - Page 316
Science - Chapter 3 - 3.4 - 3.4D - Page 321
Science - Chapter 3 - 3.4 - 3.4C - Page 319
Science - Chapter 3 - 3.4 - 3.4D - Page 320
3.5
3.5
Science - Chapter 3 - 3.5 - 3.5B - Page 324
Science - Chapter 3 - 3.5 - 3.5D - Page 328
Science - Chapter 3 - 3.5 - 3.5C - Page 326
Science - Chapter 3 - 3.5 - 3.5E - Page 329
Science - Chapter 3 - 3.5 - 3.5A - Page 323
Science - Chapter 3 - 3.5 - 3.5C - Page 325
Science - Chapter 3 - 3.5 - 3.5D - Page 327
Chapter 4
Chapter 4
Science - Chapter 4 - 4.1B - Page 334
Science - Chapter 4 - 4.1E - Page 337
Science - Chapter 4 - 4.1C - Page 335
Science - Chapter 4 - 4.1B - Page 333
Science - Chapter 4 - 4.1D - Page 336
Science - Chapter 4 - 4.1A - Page 332
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