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- 1.NBT.B.2a10 can be thought of as a bundle of ten ones â called a âten.â
- 1.NBT.B.2bThe numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
- 1.NBT.B.2cThe numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

How Many Dots?

1st Grade Math

Â» Unit:

The Ten Concept: Counting On and Off the Decade and Knowing 10 More/ 10 Less

Big Idea:Students will engage in a variety of activities that ask them to represent numbers with groups of ten and have them counting by 10s.

Tens and Ones to 50

1st Grade Math

Â» Unit:

Numbers and Place Value

Big Idea:Tens, Tens! In this lesson students will use base ten blocks to build numbers to 50.

Counting From A Number

1st Grade Math

Â» Unit:

Working with Numbers, Operations, and Story Problems

Big Idea:Students will continue working with games that ask them to use the counting on strategy. The lesson will end with a story problem that allows for the students to use the counting on strategy in a real world situation.

M&M Tens

1st Grade Math

Â» Unit:

10: A First Grader's Best Friend

Big Idea:Students bundle into tens in this engaging lesson where they pretend to work at a M&M factory!

Concepts of 10 Bakery

1st Grade Math

Â» Unit:

10: A First Grader's Best Friend

Big Idea:Students pretend that ten frames are trays of 10 cookies each as they work to fill orders at a bakery!

Problem Solve with an Organized List

1st Grade Math

Â» Unit:

Place Value

Big Idea:I am ramping up the rigor by asking my students to solve a real-world problem with their skills in counting by tens.

M&M Ten Frames

1st Grade Math

Â» Unit:

10: A First Grader's Best Friend

Big Idea:Students create groups of 10 using ten frames in this M&M inspired lesson.

Tens

1st Grade Math

Â» Unit:

Numbers and Place Value

Big Idea:Itâs about tens! In this lesson students will use pictures, models and numbers to represent tens.

How many tens?

1st Grade Math

Â» Unit:

Place Value

Big Idea:My students have been working on grouping ones to make bundles of ten and building numbers greater than 10. This lesson will allow them to practice with counting sets of tens and help them see the value of the digit in the tens place.

Place Value: Vocabulary Review

1st Grade Math

Â» Unit:

Place Value

Big Idea:My students continue to learn what place value is and practice grouping tens together.

1.NBT.B.2a

10 can be thought of as a bundle of ten ones â called a âten.â

1.NBT.B.2b

The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.

1.NBT.B.2c

The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).