| ★ |  Contradiction | Vocabulary | Khan Academy | | — | Estados Unidos | |
| 1 |  Accumulate, Vast, Consist | Vocabulary | Khan Academy | | — | Estados Unidos | 78 |
| 3 |  Conceal, Convey, Correspond | Vocabulary | Khan Academy | | — | Estados Unidos | 77 |
| 4 |  Currently, Thus, Despite | Vocabulary | Khan Academy | | — | Estados Unidos | 77 |
| 5 |  Prominent, Contrast | Vocabulary | Khan Academy | | — | Estados Unidos | 75 |
| 7 |  Dynamic, Durable | Vocabulary | Khan Academy | | — | Estados Unidos | 73 |
| 8 |  Inexplicable, Interrogate | Vocabulary | Khan Academy | | — | Estados Unidos | 72 |
| 9 |  Conscious, Evade | Vocabulary | Khan Academy | | — | Estados Unidos | 72 |
| 10 |  Stereotype, Obstacle | Vocabulary | Khan Academy | | — | Estados Unidos | 72 |
| 16 |  Benefit, Philosophy | Vocabulary | Khan Academy | | — | Estados Unidos | 70 |
| 17 |  Symbol, Persuade, Signify | Vocabulary | Khan Academy | | — | Estados Unidos | 68 |
| 19 |  Order of operations example | Arithmetic properties | Pre-Algebra | Khan Academy | | — | Estados Unidos | 67 |
| 12 |  Object composition | Intro to CS - Python | Khan Academy | | 13.5K | Estados Unidos | 71 |
| 15 |  Essential, Advance, Longevity, Modify | Vocabulary | Khan Academy | | 1.7K | Estados Unidos | 70 |
| 2 |  Objective | Vocabulary | Khan Academy | | 1.4K | Estados Unidos | 78 |
| 20 |  Critical, Conversely, Approximately, Moreover | Vocabulary | Khan Academy | | 1.2K | Estados Unidos | 67 |
| 11 |  Demonstrate, Hypothesis, Accurate | Vocabulary | Khan Academy | | 1.1K | Estados Unidos | 71 |
| 6 |  Elaborate, Necessity | Vocabulary | Khan Academy | | 1.1K | Estados Unidos | 73 |
| 18 |  Submerge, Profound | Vocabulary | Khan Academy | | 662 | Estados Unidos | 68 |
| 14 |  Adapt, Collaborate, Criticize | Vocabulary | Khan Academy | | 502 | Estados Unidos | 70 |
| 13 |  Vague, Interpret | Vocabulary | Khan Academy | | 453 | Estados Unidos | 70 |