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Practice with passages from literature, science, history, and social studies. Koydo teaches you how to find the main idea and supporting evidence quickly under time pressure.

Subject-verb agreement, punctuation, sentence structure, and transitions. The AI identifies the specific grammar rules you miss most and drills them until they stick.

Learn to strengthen arguments, evaluate claims, and improve passage structure. Practice the command-of-evidence questions that trip up most students.
| Feature | Koydo | Traditional SAT Prep |
|---|---|---|
| Plan fit | Included in a broader learning system | Separate prep purchase |
| Passage-based practice | Hundreds of adaptive passages | Limited practice test pool |
| Grammar rule targeting | AI identifies weakest rules | Review all rules equally |
| Vocabulary in context | Adaptive flashcards + reading | Separate vocabulary lists |
| Reading speed coaching | Built-in pacing tools | Not included |
Third-party features, eligibility, and prices change. Verify current details on each provider's official site; use Koydo's pricing page for current Koydo plans.



Koydo serves you passages at your current reading level and gradually increases complexity. After each passage set, the AI tutor explains why specific answers are correct using evidence from the text — teaching you the reasoning process, not just the answer.
Yes. All practice materials are aligned with the current digital SAT format, including the adaptive testing structure where the difficulty of the second module depends on your performance in the first.
Absolutely. Koydo includes 20+ language courses and ESL-aware explanations. The AI tutor can adjust its explanations based on common challenges for non-native English speakers, making grammar rules and reading strategies clearer.
