Nội dung bài giảng
1. Listen, trace, and repeat.
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Script:
nineteen: 19
twenty: 20
2. Point and sing.
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Script:
nineteen: 19
twenty: 20
3. Count and take away.
Hướng dẫn:
19 – 4 = 15
nineteen – four = fifteen
20 – 3 = 17
twenty – three - seventeen