After learning this unit, students will be able to
1. master the vocabulary about the numbers;
2. know how to read cardinals and ordinals;
3. know how to toast and answer the questions about the numbers. hNfKEzZCJ6rbr5AGCFC6GUJE/wEOwLcYtxa4PfFrfqc09eOnwp101lKiwIVR14bX