Activity purpose:

1. Learn the numerical order of 1 1- 19.

2. Learn the combination of two numbers 1 1-20 and numbers.

3. Understand the meaning of the number 1- 19.

Operation process:

1. Parents introduce the name of the teaching aid to the baby: Today we will make a "plug-in board".

2. Parents demonstrate the "plug-in board".

(1) Arrange the number plates 1-9, and then match the colored beads.

(2) Pointing to 10 in the root board, this is a "10". Then put the golden ball on the left hand side and say, this is also "10". Insert the plug root board "1" at the back and say "10". Add the colored bead "1" after the gold bead "10" and add "1" to it.

(3) Implement 19 in the same way. Through this activity, let children know the formation of the number 1 1 ~ 19 and its combination with the number, cultivate children's concentration and sense of order, and prepare for counting.