Math 1 Lesson: Eleven, twelve

### 1.1. Knowledge to remember

– Recognize the structure of the numbers 11, 12, including how many tens and how many units.

+) Number 11 includes 1 tens and 1 unit.

+) Number 12 includes 1 tens and 2 units.

– Read and write the number 11; twelfth

### 1.2. Mathematical forms about Eleven, twelve

**Form 1: Count the pictures and write the corresponding number.**

– Count the number of given objects and write the corresponding number.

+ 1 dozen add 1 unit to make 11.

+ 1 dozen add 2 units to make 12.

**Form 2: Fill in the appropriate number in the number line.**

I determine the distances divided on the number line, equidistant from several units and then count and fill in the corresponding numbers.

**Form 3: Compare, calculate within 11.**

I memorize the order of numbers from 0 to 11.

### 1.3. Solving Textbook Exercises

**Lesson 1 page 101**

Fill in the blanks with the correct number:

**Solution method**

Count the number of stars in each picture and fill in the blanks with the correct number.

1 tens add 1 unit equals 11.

1 tens add 2 units equals 12.

**Solution guide**

**Lesson 2 page 102**

Draw more dots (according to the pattern):

__Solution method__

Draw the number of dots in each box corresponding to the given number of tens and units.

For 1 dozen, draw 10 circles.

**Solution guide**

**Lesson 3 page 102**

Color 11 triangles and 12 squares:

__Solution method__

Count the number of triangles and squares by the given number.

**Solution guide**

**Lesson 4 page 102**

Enter a number under each line of the number line:

__Solution method__

Count forward starting from 0 and then fill in the missing number in the number line.

**Solution guide**

.

=====

## Leave a Reply