Скачать или смотреть When the Standard Algorithm Fails: The Math Problems That Expose Shallow Understanding

➖ What if the very procedures we teach are preventing students from actually understanding math?

Yvette Lehman shares two powerful examples where the standard algorithm is not just unhelpful—it’s an obstacle:
🧮 1000 – 999 → Using the standard algorithm is painfully inefficient compared to simply seeing the relationship
🧮 17 – 9 → Students stack, borrow, and still have 17 – 9—no closer to an answer

💡 We’re blindly following these procedures that really aren’t helping us get to an answer.

🔑 The Secret?

True math proficiency isn’t about memorizing steps—it’s about understanding the behavior of numbers and having a flexible toolkit of strategies.

📢 Debate Time:

Should we still teach the standard algorithm as a default method, or prioritize flexible, relational thinking from the start?

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