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### Overview

In this activity, the students will practice one to one correspondence by counting the objects on the picture cards, regardless of their configuration, and practice sequential ordering of numbers 0-20.

This activity results from the ALEX Resource Development Summit.

## UP:MA19.K.5

### Vocabulary

• Rectangular array
• Subitize

### Knowledge

Students know:
• how to use one-to-one correspondence when counting objects.
• how to demonstrate number word sequence.

### Skills

Students are able to:
• count sequentially.
• Use one to one correspondence.
• Subitize.
• Represent a number of objects within 0 to 20.

### Understanding

Students understand that:
• numbers name quantities regardless of their arrangement.

### Phase

During/Explore/Explain
Learning Objectives

### Learning Objectives

Students are able to count using no more than 10 concrete objects in a scattered configuration.

### Activity Details

1. Print the number mats and picture cards.
2. Next, decide if your students need to practice numbers 0-10, 10-20, or 0-20.
3. Print the mat and picture cards with the red outline to practice numbers 0-10.
4. Print the mat and picture cards with a blue outline to practice numbers 10-20.
5. Print the mat and picture cards with the green outline to practice numbers 0-20.
6. Next, the students will count the set of objects on the picture cards and place them in sequential order on the number mat.
7. The students will place the two picture cards that come before and after the indicated numeral in the circle represented on the number mat.
Assessment Strategies

### Assessment Strategies

The teacher will check the students' number mast to ensure that the students met the learning objective.

Check that the student:

1. used one to one correspondence when counting the picture cards.
2. recognized the indicated numeral on the number mat.
3. was able to find the picture cards containing the correct amount that goes before the indicated numeral on the number mat.
4. was able to find the picture cards containing the correct amount that goes after the indicated numeral on the number mat.

### Variation Tips

This practice activity can be used for numbers 0-10 or numbers 10-20 depending on the student's ability.

There are 3 sets of number mats to print off. The red outlined number mat will be to practice numbers 0-10. The blue outlined number mat will be to practice numbers 10-20 and the green outlined number mat will be to practice numbers 0-20.

### Background / Preparation

The teacher will need to print and laminate the number mats and picture cards for the students to use in a math station or a small group.