Bàn công nghệ cao giúp trẻ học tốt môn toán
Toán luôn là một trong những môn học khó đối với học sinh. Để giúp các em giảm bớt phần nào áp lực trong quá trình học môn này, các chuyên gia Đại học Durham (Anh) đã tiến hành một dự án nghiên cứu...
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4buUTkHhu4ZZ4bq0QeG7lMagQU5PxKjhu5RB4buQTsOCQeG7mELhu4ZBPeG6pEHhu5AsQeG7rE7hu67hurzhu6xB4buSQsavQeG7hEThu6xB4buGw53hu5RNQcavTuG7tOG7hkHhu6zhuqbGr+G7sUHhu5TDjOG7lEHhu5BOxqBB4buGxqBB4buQTuG6rEHhu5Thuqrhu5RNQeG7lMagQeG7hOG7suG7pOG7hkHhu7Thu5RNQeG7gljhu5RNQeG7qlLhu5RNQeG7quG6qE9B4bus4bqmT0Hhu4bDguG7hkHhu6zhu6rhu7LDmeG7lE1BTuG7nOG7huG7rXgvxq95eMavQeG7huG7kuG6tOG7sOG7sMO64bu5xq824buW4buCKuG7uXlvTkbhu5ZBNsOC4buWQTfhurrhu5RBb05VeC/Gr3k=