Illuminations: Let's Count to 10

# Let's Count to 10

## Building Sets of Ten

 Students explore sets of up to 10 items and practice writing the numbers 0 through 10. Students count back from 10, identify sets of up to 10 objects, and record 10 on a chart. They also construct and decompose sets of up to 10 items.

### Learning Objectives

 Students will: construct and record groups of 10 objects identify and write the numeral 10 write the numerals through 10 construct and decompose groups of 10 objects

### Materials

 Connecting cubes Crayons Paper Numeral Cards 10-Frame Activity Sheet Steps to 10 Activity Sheet Spinner Applet

### Questions for Students

 Look at the connecting cubes in my hand. (Show 10 connecting cubes.) Take eight connecting cubes from my hand. How many connecting cubes are left in my hand? [There are two connecting cubes.] (Repeat, asking the students to take away other amounts from 10.) When your hand is empty, how many connecting cubes are you holding? [Zero] Do you know a word that means "zero"? [None] Can you count to 10? Can you show me a group of 10? Can you show a way to split the group of 10 into two groups? Can you do it a different way? Make a group of eight and a group of 10. Which group has more? How many more? Which group has less? How many less? [The group of 10 has two more. The group of 8 has two less.] How can you change a train of nine to a train of 10? How can you change a train of 10 to a train of five? [I can add five more blocks to make 10 blocks.]( Repeat using other numbers.)

### Assessment Options

 Use the teacher resource sheet, Class Notes, to document your observations about the students' abilities to do the following: Construct groups of 10 objects Identify and write the numeral 10 Write the numerals up through 10 Construct and decompose groups of 10 objects Record groups of 10 items

### Teacher Reflection

 Which students can construct groups for all the numbers, 0 through 10? What are the next appropriate goals for them? Are there students still unable to count out 10 objects? What should I do at this time to help them reach this goal? Which students are not yet able to count rationally up through 10? What experiences do they need next? Which students are able to identify the numerals 0 through 10? Which students need help on specific numerals? Which students are not yet able to write the numerals 0 to 10? Which numerals are the most difficult for them? What additional experiences should I plan for them? Which students are not able to compare sets of 0 to 10 items? What learning activities should I plan for them? What adjustments will I make the next time that I teach this lesson?

### NCTM Standards and Expectations

 Number & Operations Pre-K-2Develop a sense of whole numbers and represent and use them in flexible ways, including relating, composing, and decomposing numbers. Connect number words and numerals to the quantities they represent, using various physical models and representations. Count with understanding and recognize "how many" in sets of objects.

### References

 Baratta-Lorton, Mary. Mathematics Their Way. Menlo Park, Calif.: Addison-Wesley, 1974.Burton, Grace M. Towards a Good Beginning: Teaching Early Childhood Mathematics. Menlo Park, Calif.: Addison-Wesley, 1985.
 This lesson was developed by Grace M. Burtonn.

1 period

### NCTM Resources

Principles and Standards for School Mathematics

### Web Sites

 More and Better Mathematics for All Students
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