Khan Academy
7 713 vidéos, +5 400 000 abonnés



duréevues
2015 AP Biology free response 56:541 089
2015 AP Biology free response 45:24752
2015 AP Biology free response 38:31884
2015 AP Biology free response 2 c d9:32939
2015 AP Biology free response 1 a c11:12880
2015 AP Biology free response 1 d e7:40789
2015 AP Physics 1 free response 3d4:801 542
2015 AP Physics 1 free response 3c8:16718
2015 AP Physics 1 free response 3b5:45535
2015 AP Physics 1 free response 3a7:46930
2015 AP Physics 1 free response 512:201 778
2015 AP Physics 1 free response 410:571 472
2015 AP Physics 1 free response 2 c and d9:521 260
2015 AP Physics I free response 2 a and b11:561 336
Avoiding common mistakes in historical essays9:455 172
How to read a document12:357 224
2015 AP Physics 1 free response 1c8:443 331
2015 AP Physics 1 free response 1b9:362 124
2015 AP Physics 1 free response 1a5:192 418
The discovery of the double helix structure of DNA8:565 363
Hershey and Chase conclusively show DNA genetic material8:493 950
Establishing DNA as transformation principle10:193 412
How to read a document part 213:495 052
Introduction to verb tense | The parts of speech | Grammar1:466 102
Introduction to Verbs | The parts of speech | Grammar1:266 901
Perfect progressive aspect | The parts of speech | Grammar2:113 560
Progressive aspect | The parts of speech | Grammar2:453 831
Perfect aspect | The parts of speech | Grammar2:313 744
The simple aspect | The parts of speech | Grammar1:323 381
Introduction to verb aspect | The parts of speech | Grammar1:503 468
The irregular verb gets taken | The parts of speech | Grammar3:143 121
The vowel-shift irregular verb | The parts of speech | Grammar3:113 818
Introduction to irregular verbs | The parts of speech | Grammar3:293 933
Linking verbs | The parts of speech | Grammar3:204 912
Helping verbs | The parts of speech | Grammar2:545 015
Modal verbs | The parts of speech | Grammar4:533 154
The truly irregular irregular verbs | The parts of speech | Grammar2:533 017
The funky -ed irregular verb | The parts of speech | Grammar1:533 497
Thinking like a historian8:487 813
Irregular plural nouns | foreign plurals | Grammar4:579 359
Introduction to Grammar2:4634 865
Thomas Hunt Morgan and fruit flies10:403 854
Boveri-Sutton Chromosome Theory10:593 485
Circuit Terminology | Electrical Engineering | Khan Academy8:408 196
The scientific method11:4919 503
Small x approximation for large Kc14:803 327
Small x approximation for small Kc9:403 691
Buffer capacity10:447 141
Biology overview4:3431 305
Recognizing graph of exponential after transformation6:552 479
Example of widget to graph exponential3:151 581
Modeling narwhals with an exponential function4:522 622
Modeling chain letter with exponential function3:481 421
Modeling with an exponential function4:181 373
Transforming exponential graphs3:501 436
Rational function graph based on zeros7:471 467
Deducing y intercept of rational function3:801 586
Picking graph based on horizontal asymptote3:161 176
Picking graphs based on vertical asymptotes5:331 136
Picking hyperbola graph example5:151 490
Picking hyperbola equation2:211 105
Understanding behavior of asymptotes7:602 118
Identifying zeros, vertical asymptotes and removable discontinuities6:461 028
End behavior of rational functions examples10:701 116
Example solving equation with rational expressions7:122 234
Equation with rational expressions5:121 224
Least common multiples of polynomials6:521 060
Subtracting rational expressions with factored denominators4:48781
Simplifying rational expressions examples6:591 933
Simplifying rational expression with higher degree terms5:53820
Rational expression with two variables6:11999
Finding expression for equation example6:20771
Adding rational expression example5:111 039
Subtracting rational expressions4:47826
Radical equation with extraneous solution3:591 977
Radical equation with two solutions5:291 299
Modeling with composite functions examples6:431 266
Inverse of rational function7:201 335
Inverse of a radical function4:37990
Example picking transformation between functions4:211 058
Example identifying transformation compressing function3:161 226
Shifting functions algebraically examples7:423 298
Example constructing exponential from initial value and common ratio1:402 126
Graphing exponentials exercise examples4:601 981
Recognizing rational and irrational expressions examples6:261 420
Example function composition notation4:102 354
Example using graph widget to shift graph2:481 238
Simplifying hairy exponent expressions6:703 013
Simplifying more involved radical expressions4:433 102
Simplifying radicals examples6:203 490
nth roots and fraction exponents equivalence examples4:193 391
Position vector valued functions | Multivariable Calculus | Khan Academy7:505 195
Comparing features of quadratic functions4:111 538
Quadratic examples with zeros, vertex and line of symmetry8:232 160
pH and pKa relationship for buffers7:507 548
Solving quadratic by completing the square6:192 579
Example completing the square3:202 236
Solving quadratic with non one leading coefficient4:357 801
Solving quadratics by taking square roots5:126 812
Finding term of geometric sequence2:149 534



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