Including: the meaning of numbers, counting units, decimal relations, the composition of numbers, the order of numbers, size comparison, radix and ordinal number.

Addition and subtraction within 2.20

Including: the meaning of addition and subtraction, the names of each part of the addition and subtraction formula, and the carry addition within 20.

Understand clocks and watches

Including: knowing the clock face, the hour hand and the minute hand, and knowing the hour and the half hour.

4. Understanding of graphics

Include three-dimensional graphics and plane graphics.

5. Simple statistical process

Including single standard classification, different standard classification, ratio, ratio height and ratio length.