1st Grade Introducing Math & Science Workbook
Current Explanation
Math - Chapter 1 - 1.1 - 1.1A - Page 11
Explanation playlist
Math
Math
Chapter 1
Chapter 1
1.1
1.1
Math - Chapter 1 - 1.1 - 1.1A - Page 11
Math - Chapter 1 - 1.1 - 1.1B - Page 19
Math - Chapter 1 - 1.1 - 1.1A - Page 13
Math - Chapter 1 - 1.1 - 1.1B - Page 16
Math - Chapter 1 - 1.1 - 1.1B - Page 17
Math - Chapter 1 - 1.1 - 1.1A - Page 10
Math - Chapter 1 - 1.1 - 1.1A - Page 14
Math - Chapter 1 - 1.1 - 1.1B - Page 18
Math - Chapter 1 - 1.1 - 1.1A - Page 12
Math - Chapter 1 - 1.1 - 1.1B - Page 15
1.2
1.2
Math - Chapter 1 - 1.2 - 1.2A - Page 21
Math - Chapter 1 - 1.2 - 1.2A - Page 24
Math - Chapter 1 - 1.2 - 1.2B - Page 27
Math - Chapter 1 - 1.2 - 1.2A - Page 22
Math - Chapter 1 - 1.2 - 1.2B - Page 29
Math - Chapter 1 - 1.2 - 1.2A - Page 23
Math - Chapter 1 - 1.2 - 1.2B - Page 26
Math - Chapter 1 - 1.2 - 1.2A - Page 20
Math - Chapter 1 - 1.2 - 1.2A - Page 25
Math - Chapter 1 - 1.2 - 1.2B - Page 28
Math - Chapter 1 - 1.2 - 1.2B - Page 30
1.3
1.3
Math - Chapter 1 - 1.3 - 1.3B - Page 39
Math - Chapter 1 - 1.3 - 1.3A - Page 31
Math - Chapter 1 - 1.3 - 1.3A - Page 33
Math - Chapter 1 - 1.3 - 1.3A - Page 34
Math - Chapter 1 - 1.3 - 1.3B - Page 36
Math - Chapter 1 - 1.3 - 1.3B - Page 37
Math - Chapter 1 - 1.3 - 1.3B - Page 35
Math - Chapter 1 - 1.3 - 1.3B - Page 38
Math - Chapter 1 - 1.3 - 1.3A - Page 32
1.4
1.4
Math - Chapter 1 - 1.4 - 1.4A - Page 40
Math - Chapter 1 - 1.4 - 1.4A - Page 43
Math - Chapter 1 - 1.4 - 1.4B - Page 49
Math - Chapter 1 - 1.4 - 1.4A - Page 41
Math - Chapter 1 - 1.4 - 1.4A - Page 42
Math - Chapter 1 - 1.4 - 1.4B - Page 45
Math - Chapter 1 - 1.4 - 1.4B - Page 46
Math - Chapter 1 - 1.4 - 1.4B - Page 48
Math - Chapter 1 - 1.4 - 1.4A - Page 44
Math - Chapter 1 - 1.4 - 1.4B - Page 47
1.5
1.5
Math - Chapter 1 - 1.5 - 1.5 - Page 50-57
Chapter 2
Chapter 2
2.1
2.1
Math - Chapter 2 - 2.1 - 2.1 - Page 63
Math - Chapter 2 - 2.1 - 2.1 - Page 67
Math - Chapter 2 - 2.1 - 2.1 - Page 60
Math - Chapter 2 - 2.1 - 2.1 - Page 66
Math - Chapter 2 - 2.1 - 2.1 - Page 68
Math - Chapter 2 - 2.1 - 2.1 - Page 61
Math - Chapter 2 - 2.1 - 2.1 - Page 64
Math - Chapter 2 - 2.1 - 2.1 - Page 65
Math - Chapter 2 - 2.1 - 2.1 - Page 62
2.2
2.2
Math - Chapter 2 - 2.2 - 2.2A - Page 73
Math - Chapter 2 - 2.2 - 2.2B - Page 77
Math - Chapter 2 - 2.2 - 2.2C - Page 80
Math - Chapter 2 - 2.2 - 2.2D - Page 86
Math - Chapter 2 - 2.2 - 2.2E - Page 89
Math - Chapter 2 - 2.2 - 2.2E - Page 90
Math - Chapter 2 - 2.2 - 2.2A - Page 71
Math - Chapter 2 - 2.2 - 2.2B - Page 75
Math - Chapter 2 - 2.2 - 2.2C - Page 79
Math - Chapter 2 - 2.2 - 2.2C - Page 83
Math - Chapter 2 - 2.2 - 2.2D - Page 84
Math - Chapter 2 - 2.2 - 2.2D - Page 87
Math - Chapter 2 - 2.2 - 2.2D - Page 88
Math - Chapter 2 - 2.2 - 2.2E - Page 93
Math - Chapter 2 - 2.2 - 2.2A - Page 70
Math - Chapter 2 - 2.2 - 2.2A - Page 72
Math - Chapter 2 - 2.2 - 2.2B - Page 76
Math - Chapter 2 - 2.2 - 2.2C - Page 82
Math - Chapter 2 - 2.2 - 2.2A - Page 69
Math - Chapter 2 - 2.2 - 2.2B - Page 74
Math - Chapter 2 - 2.2 - 2.2B - Page 78
Math - Chapter 2 - 2.2 - 2.2C - Page 81
Math - Chapter 2 - 2.2 - 2.2D - Page 85
Math - Chapter 2 - 2.2 - 2.2E - Page 91
Math - Chapter 2 - 2.2 - 2.2E - Page 92
2.3
2.3
Math - Chapter 2 - 2.3 - 2.3C - Page 103
Math - Chapter 2 - 2.3 - 2.3A - Page 96
Math - Chapter 2 - 2.3 - 2.3B - Page 99
Math - Chapter 2 - 2.3 - 2.3C - Page 104
Math - Chapter 2 - 2.3 - 2.3C - Page 105
Math - Chapter 2 - 2.3 - 2.3A - Page 94
Math - Chapter 2 - 2.3 - 2.3A - Page 97
Math - Chapter 2 - 2.3 - 2.3B - Page 98
Math - Chapter 2 - 2.3 - 2.3B - Page 101
Math - Chapter 2 - 2.3 - 2.3A - Page 95
Math - Chapter 2 - 2.3 - 2.3B - Page 100
Math - Chapter 2 - 2.3 - 2.3C - Page 102
2.4
2.4
Math - Chapter 2 - 2.4 - 2.4 - Page 106-111
Chapter 3
Chapter 3
3.1
3.1
Math - Chapter 3 - 3.1 - 3.1A - Page 115
Math - Chapter 3 - 3.1 - 3.1A - Page 116
Math - Chapter 3 - 3.1 - 3.1B - Page 118
Math - Chapter 3 - 3.1 - 3.1B - Page 119
Math - Chapter 3 - 3.1 - 3.1B - Page 121
Math - Chapter 3 - 3.1 - 3.1A - Page 114
Math - Chapter 3 - 3.1 - 3.1B - Page 120
Math - Chapter 3 - 3.1 - 3.1A - Page 117
Math - Chapter 3 - 3.1 - 3.1B - Page 122
3.2
3.2
Math - Chapter 3 - 3.2 - 3.2 - Page 123
Math - Chapter 3 - 3.2 - 3.2 - Page 124
Math - Chapter 3 - 3.2 - 3.2 - Page 125
Math - Chapter 3 - 3.2 - 3.2 - Page 127
Math - Chapter 3 - 3.2 - 3.2 - Page 126
Math - Chapter 3 - 3.2 - 3.2 - Page 128
Math - Chapter 3 - 3.2 - 3.2 - Page 129
Math - Chapter 3 - 3.2 - 3.2 - Page 130
3.3
3.3
Math - Chapter 3 - 3.3 - 3.3 - Page 131
Math - Chapter 3 - 3.3 - 3.3 - Page 134
Math - Chapter 3 - 3.3 - 3.3 - Page 136
Math - Chapter 3 - 3.3 - 3.3 - Page 140
Math - Chapter 3 - 3.3 - 3.3 - Page 141
Math - Chapter 3 - 3.3 - 3.3 - Page 133
Math - Chapter 3 - 3.3 - 3.3 - Page 137
Math - Chapter 3 - 3.3 - 3.3 - Page 132
Math - Chapter 3 - 3.3 - 3.3 - Page 135
Math - Chapter 3 - 3.3 - 3.3 - Page 139
Math - Chapter 3 - 3.3 - 3.3 - Page 138
3.4
3.4
Math - Chapter 3 - 3.4 - 3.4 - Page 142-149
Chapter 4
Chapter 4
4.1
4.1
Math - Chapter 4 - 4.1 - 4.1A - Page 153
Math - Chapter 4 - 4.1 - 4.1A - Page 152
Math - Chapter 4 - 4.1 - 4.1B - Page 158
Math - Chapter 4 - 4.1 - 4.1B - Page 159
Math - Chapter 4 - 4.1 - 4.1A - Page 154
Math - Chapter 4 - 4.1 - 4.1A - Page 155
Math - Chapter 4 - 4.1 - 4.1A - Page 156
Math - Chapter 4 - 4.1 - 4.1B - Page 160
Math - Chapter 4 - 4.1 - 4.1C - Page 161
Math - Chapter 4 - 4.1 - 4.1C - Page 162
Math - Chapter 4 - 4.1 - 4.1B - Page 157
Math - Chapter 4 - 4.1 - 4.1C - Page 163
Math - Chapter 4 - 4.1 - 4.1C - Page 164
4.2
4.2
Math - Chapter 4 - 4.2 - 4.2 - Page 165-171
Chapter 5
Chapter 5
Math - Chapter 5 - Page 174-185
Science
Science
Chapter 1: Physical Science
Chapter 1: Physical Science
1.1
1.1
Science - Chapter 1: Physical Science - 1.1 - 1.1C - Page 218
Science - Chapter 1: Physical Science - 1.1 - 1.1D - Page 220
Science - Chapter 1: Physical Science - 1.1 - 1.1A - Page 216
Science - Chapter 1: Physical Science - 1.1 - 1.1B - Page 217
Science - Chapter 1: Physical Science - 1.1 - 1.1D - Page 219
Science - Chapter 1: Physical Science - 1.1 - 1.1E - Page 221
Science - Chapter 1: Physical Science - 1.1 - 1.1E - Page 222
1.2
1.2
Science - Chapter 1: Physical Science - 1.2 - 1.2D - Page 226
Science - Chapter 1: Physical Science - 1.2 - 1.2E - Page 228
Science - Chapter 1: Physical Science - 1.2 - 1.2A - Page 223
Science - Chapter 1: Physical Science - 1.2 - 1.2B - Page 224
Science - Chapter 1: Physical Science - 1.2 - 1.2C - Page 225
Science - Chapter 1: Physical Science - 1.2 - 1.2D - Page 227
1.3
1.3
Science - Chapter 1: Physical Science - 1.3 - 1.3D - Page 234
Science - Chapter 1: Physical Science - 1.3 - 1.3A - Page 229
Science - Chapter 1: Physical Science - 1.3 - 1.3B - Page 230
Science - Chapter 1: Physical Science - 1.3 - 1.3C - Page 231
Science - Chapter 1: Physical Science - 1.3 - 1.3E - Page 235
Science - Chapter 1: Physical Science - 1.3 - 1.3C - Page 232
Science - Chapter 1: Physical Science - 1.3 - 1.3D - Page 233
1.4
1.4
Science - Chapter 1: Physical Science - 1.4 - 1.4C - Page 238
Science - Chapter 1: Physical Science - 1.4 - 1.4A - Page 236
Science - Chapter 1: Physical Science - 1.4 - 1.4B - Page 237
Science - Chapter 1: Physical Science - 1.4 - 1.4D - Page 239
Science - Chapter 1: Physical Science - 1.4 - 1.4D - Page 240
Science - Chapter 1: Physical Science - 1.4 - 1.4E - Page 241
1.5
1.5
Science - Chapter 1: Physical Science - 1.5 - 1.5D - Page 246
Science - Chapter 1: Physical Science - 1.5 - 1.5C - Page 244
Science - Chapter 1: Physical Science - 1.5 - 1.5D - Page 245
Science - Chapter 1: Physical Science - 1.5 - 1.5B - Page 243
Science - Chapter 1: Physical Science - 1.5 - 1.5A - Page 242
Science - Chapter 1: Physical Science - 1.5 - 1.5E - Page 247
Chapter 2: Life Science
Chapter 2: Life Science
2.1
2.1
Science - Chapter 2: Life Science - 2.1 - 2.1C - Page 253
Science - Chapter 2: Life Science - 2.1 - 2.1B - Page 252
Science - Chapter 2: Life Science - 2.1 - 2.1E - Page 255
Science - Chapter 2: Life Science - 2.1 - 2.1A - Page 250
Science - Chapter 2: Life Science - 2.1 - 2.1B - Page 251
Science - Chapter 2: Life Science - 2.1 - 2.1D - Page 254
2.2
2.2
Science - Chapter 2: Life Science - 2.2 - 2.2E - Page 261
Science - Chapter 2: Life Science - 2.2 - 2.2C - Page 259
Science - Chapter 2: Life Science - 2.2 - 2.2A - Page 256
Science - Chapter 2: Life Science - 2.2 - 2.2B - Page 257
Science - Chapter 2: Life Science - 2.2 - 2.2B - Page 258
Science - Chapter 2: Life Science - 2.2 - 2.2D - Page 260
2.3
2.3
Science - Chapter 2: Life Science - 2.3 - 2.3E - Page 267
Science - Chapter 2: Life Science - 2.3 - 2.3D - Page 265
Science - Chapter 2: Life Science - 2.3 - 2.3A - Page 262
Science - Chapter 2: Life Science - 2.3 - 2.3B - Page 263
Science - Chapter 2: Life Science - 2.3 - 2.3C - Page 264
Science - Chapter 2: Life Science - 2.3 - 2.3D - Page 266
2.4
2.4
Science - Chapter 2: Life Science - 2.4 - 2.4C - Page 270
Science - Chapter 2: Life Science - 2.4 - 2.4E - Page 272
Science - Chapter 2: Life Science - 2.4 - 2.4E - Page 273
Science - Chapter 2: Life Science - 2.4 - 2.4A - Page 268
Science - Chapter 2: Life Science - 2.4 - 2.4B - Page 269
Science - Chapter 2: Life Science - 2.4 - 2.4D - Page 271
2.5
2.5
Science - Chapter 2: Life Science - 2.5 - 2.5C - Page 277
Science - Chapter 2: Life Science - 2.5 - 2.5D - Page 278
Science - Chapter 2: Life Science - 2.5 - 2.5B - Page 275
Science - Chapter 2: Life Science - 2.5 - 2.5E - Page 279
Science - Chapter 2: Life Science - 2.5 - 2.5C - Page 276
Science - Chapter 2: Life Science - 2.5 - 2.5A - Page 274
Chapter 3: Earth & Space Science
Chapter 3: Earth & Space Science
3.1
3.1
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1A - Page 282
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1B - Page 283
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1C - Page 285
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1D - Page 287
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1D - Page 288
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1C - Page 286
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1E - Page 289
Science - Chapter 3: Earth & Space Science - 3.1 - 3.1B - Page 284
3.2
3.2
Science - Chapter 3: Earth & Space Science - 3.2 - 3.2C - Page 293
Science - Chapter 3: Earth & Space Science - 3.2 - 3.2D - Page 294
Science - Chapter 3: Earth & Space Science - 3.2 - 3.2B - Page 291
Science - Chapter 3: Earth & Space Science - 3.2 - 3.2A - Page 290
Science - Chapter 3: Earth & Space Science - 3.2 - 3.2C - Page 292
Science - Chapter 3: Earth & Space Science - 3.2 - 3.2E - Page 295
3.3
3.3
Science - Chapter 3: Earth & Space Science - 3.3 - 3.3B - Page 297
Science - Chapter 3: Earth & Space Science - 3.3 - 3.3D - Page 300
Science - Chapter 3: Earth & Space Science - 3.3 - 3.3E - Page 301
Science - Chapter 3: Earth & Space Science - 3.3 - 3.3A - Page 296
Science - Chapter 3: Earth & Space Science - 3.3 - 3.3B - Page 298
Science - Chapter 3: Earth & Space Science - 3.3 - 3.3C - Page 299
3.4
3.4
Science - Chapter 3: Earth & Space Science - 3.4 - 3.4B - Page 303
Science - Chapter 3: Earth & Space Science - 3.4 - 3.4D - Page 306
Science - Chapter 3: Earth & Space Science - 3.4 - 3.4A - Page 302
Science - Chapter 3: Earth & Space Science - 3.4 - 3.4C - Page 304
Science - Chapter 3: Earth & Space Science - 3.4 - 3.4D - Page 305
Science - Chapter 3: Earth & Space Science - 3.4 - 3.4E - Page 307
3.5
3.5
Science - Chapter 3: Earth & Space Science - 3.5 - 3.5A - Page 308
Science - Chapter 3: Earth & Space Science - 3.5 - 3.5B - Page 309
Science - Chapter 3: Earth & Space Science - 3.5 - 3.5C - Page 310
Science - Chapter 3: Earth & Space Science - 3.5 - 3.5C - Page 311
Science - Chapter 3: Earth & Space Science - 3.5 - 3.5D - Page 312
Science - Chapter 3: Earth & Space Science - 3.5 - 3.5E - Page 313
Chapter 4: Engineering
Chapter 4: Engineering
4.1
4.1
Science - Chapter 4: Engineering - 4.1 - 4.1 B Page 317
Science - Chapter 4: Engineering - 4.1 - 4.1 C Page 318
Science - Chapter 4: Engineering - 4.1 - 4.1 D Page 319
Science - Chapter 4: Engineering - 4.1 - 4.1 A Page 316
Science - Chapter 4: Engineering - 4.1 - 4.1 E Page 320
4.2
4.2
Science - Chapter 4: Engineering - 4.2 - 4.2 E Page 325
Science - Chapter 4: Engineering - 4.2 - 4.2 B Page 322
Science - Chapter 4: Engineering - 4.2 - 4.2 A Page 321
Science - Chapter 4: Engineering - 4.2 - 4.2 C Page 323
Science - Chapter 4: Engineering - 4.2 - 4.2 D Page 324
4.3
4.3
Science - Chapter 4: Engineering - 4.3 - 4.3 C Page 328
Science - Chapter 4: Engineering - 4.3 - 4.3 E Page 330
Science - Chapter 4: Engineering - 4.3 - 4.3 A Page 326
Science - Chapter 4: Engineering - 4.3 - 4.3 B Page 327
Science - Chapter 4: Engineering - 4.3 - 4.3 D Page 329
4.4
4.4
Science - Chapter 4: Engineering - 4.4 - 4.4 E Page 336
Science - Chapter 4: Engineering - 4.4 - 4.4 B Page 332
Science - Chapter 4: Engineering - 4.4 - 4.4 D Page 335
Science - Chapter 4: Engineering - 4.4 - 4.4 C Page 333
Science - Chapter 4: Engineering - 4.4 - 4.4 C Page 334
Science - Chapter 4: Engineering - 4.4 - 4.4 A Page 331
4.5
4.5
Science - Chapter 4: Engineering - 4.5 - 4.5 B Page 338
Science - Chapter 4: Engineering - 4.5 - 4.5 D Page 340
Science - Chapter 4: Engineering - 4.5 - 4.5 C Page 339
Science - Chapter 4: Engineering - 4.5 - 4.5 E Page 341
Science - Chapter 4: Engineering - 4.5 - 4.5 A Page 337
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