Unit 6

Numbers 0–20

Unit Goals

Unit Narrative

In this unit, students count and represent collections of objects and images within 20. They apply previously developed counting concepts, such as one-to-one correspondence, keeping track of what has been counted, and conservation of numbers, to larger numbers.

Previously, students counted, composed, and decomposed numbers up to 10. They used counters, connecting cubes, 5-frames, 10-frames, drawings, their fingers, and other tools. They also wrote expressions to record compositions and decompositions.

Here, students use the 10-frame to organize groups of 11–19 objects and images. This tool encourages students to see teen...

Section A

Section Goals

Section Narrative

In this section, students count groups of 11–20 objects using strategies they developed earlier when working with smaller sets of objects.

Students participate in the Counting Collections center as the first activity in each lesson. They think about how organizing the objects can help ensure an accurate count and use organizing tools, such as counting mats and 10-frames. Students also...

Let’s count big numbers.

Let’s find out how many we have.

Let’s see if we get the same number.

Let’s count objects after we move them.

Section A Practice Problems

to access Section Checkpoints.

Section A

Let’s count big numbers.

Let’s find out how many we have.

Let’s see if we get the same number.

Let’s count objects after we move them.

Section B

Section Goals

Section Narrative

In this section, students see the numbers 11–19 as 10 ones and some more ones. They compose and decompose teen numbers and record the compositions and decompositions with objects, drawings, and expressions.

Students use fingers and 10-frames to represent these numbers, but there is more emphasis on using the 10-frames as the lessons progress. To represent a teen number, students...

Let’s count how many things we see.

Let’s show numbers with fingers and 10-frames.

Let’s make full 10-frames and some more.

Let’s use 10-frames, dots, or counters.

Let’s show 11–19.

Let’s write equations that show 11–19.

Section B Practice Problems

to access Section Checkpoints.

Section B

Let’s count how many things we see.

Let’s show numbers with fingers and 10-frames.

Let’s make full 10-frames and some more.

Let’s use 10-frames, dots, or counters.

Let’s show 11–19.

Let’s write equations that show 11–19.

Section C

Section Goals

Section Narrative

In this short section, students count groups of up to 20 images arranged in lines, arrays, circles, and on 10-frames.

Images arranged in a circle can be more challenging to count, motivating a greater need to keep track of what has been counted. Students use their understanding that teen numbers are composed of 10 ones and some more ones to...

Let’s find 10 shapes and count them.

Let’s count how many shapes.

Let’s make a vegetable garden.

Section C Practice Problems

to access Section Checkpoints.

Section C

Let’s find 10 shapes and count them.

Let’s count how many shapes.

Let’s make a vegetable garden.

to access End-of-Unit Assessments.

Navigation

Gradeband

Course

Unit

Settings

Language

Audience

Assessment Access

Unit | Loading...

Numbers 0–20

Unit Goals

Unit Narrative

Section Goals

Section Narrative

Section A Practice Problems

Section Goals

Section Narrative

Section B Practice Problems

Section Goals

Section Narrative

Section C Practice Problems

Unit 6 Resources

About Unit 6

Other Resources

Section Goals

Section Narrative

Section A Practice Problems

Section Goals

Section Narrative

Section C Practice Problems

Section Goals

Section Narrative

Section B Practice Problems