1. Use numbers and counting: teach children to know numbers, from 0 to 10, and their order. You can use card counting, digital games or physical objects to help children understand the concept of numbers.

2. Counting: Let children count items in daily life, such as toys and fruits. This helps to cultivate children's observation and memory.

3. Compare sizes: Let children learn to distinguish sizes by comparing the sizes of different items. For example, let children compare apples and oranges to see which is bigger, which is smaller, or the same size.

4. Classification: Teach children to classify objects according to different categories, such as color, shape and size. This helps to cultivate children's logical thinking ability.

5. Measurement: Use tools such as rulers and measuring cups to let children learn to measure length and weight. This helps to cultivate children's concept of space and understanding of the nature of objects.

6. Time concept: teach children to know the clock and let them know the passage of time. Children can learn to calculate time by making calendars and looking at the time.

7. Shopping: Take children to supermarkets or shopping malls and learn how to calculate prices and change. This helps to cultivate children's money concept and life skills.

8. Geometry: Teach children to know basic geometry, such as circles, triangles and squares. Children can learn geometry through puzzles and paintings.

9. Problem solving: Design some simple math problems for children to solve by thinking and trying. This helps to cultivate children's logical thinking and problem-solving ability.

10. Parent-child interaction: play math games with children, such as counting competitions and riddles. This will help to enhance the parent-child relationship and stimulate children's interest in mathematics.