Kindergarten · Math · Unit

Counting in Order to 20

7 lessonsabout 3 weeks

The unit ends with three more days: a review day, the unit check, and a day to act on what the check showed.

Unit 4 of 8 in the Kindergarten Math Scope and Sequence

What's included in this unit

7 lessons in teaching order, each with its objective and a teacher note
31 practice pages to print, with an easier and a harder page where available
6 classroom tools for the projector
5 activities and pages that children do on a screen
6 check-up pages to collect

The whole unit in one file

Print every page of the unit at once, with the teacher guide first. The guide has one page per lesson: the objective, what to hand out, and the teacher note.

Teacher guide only (PDF)

The unit file, the teacher guide, and saved pages are included with the Teacher plan.

Your PDF is built in your browser, so it always has the newest version of every page.

Lessons

Lesson 1

Write the numbers 11 to 20

Children trace the numbers 11 to 20 with the digits in the right order, starting each digit at the dot and following the arrows. Then they write each number once on their own on a whiteboard.

StandardCommon Core K.CC.A.3Counting and Cardinality

2 class days

Day 1Teach: Letter Studio · Practice on paper (Core page)
Day 2Practice: Practice on paper (Easier page, Harder page) · Practice on screen

Warm up and teach

Open Letter Studio on the projector.

Practice on paper

Trace the Teen Numbers 11 to 20
Core page Easier page Harder page

Practice on screen

Rivet's Number Forge — Count and Write the Numeral 1 to 20

Make more

Make more pages like this with the Number Tracing maker.

Lesson 2

Count and write how many: up to 20

Children count 11 to 20 objects arranged in rows of five, touching each one once, and write the number.

StandardCommon Core K.CC.B.5Counting and Cardinality
StandardCommon Core K.CC.A.3Counting and Cardinality

2 class days

Day 1Teach: Ten Frame · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Check-up page

Teacher note

Common mistakes: Children skip a picture or count one twice when their finger and their voice get out of step, most often at the start of a new row. Some lose the counting order in the teens (they skip 13 or 15, or say "ten-teen"), so the last number is wrong even when every picture was touched once. When they write, some reverse the digits (41 for 14).
Words to use: Say: "Touch each one as you count. Go along the row, then start the next row at the left." Ask: "Two full rows are how many? Ten. So you can start at ten: 11, 12, 13." Let children put a cube on each picture and move the cubes into two ten-frames. On the ten-frame tool, switch to two frames: fill one frame for the first two rows (ten) and put the rest on the second frame: "Ten and 3 more is 13."
What to watch for: Watch the child's finger at each new row. Ask "How many?" again when the child has finished: a child who counts all over again does not yet know that the last number said tells how many. Check the written number against the number the child says.

Lesson 3

Fill in the missing numbers

Children count along a number strip to 10 and to 20 and write the numbers that are missing.

StandardCommon Core K.CC.A.2Counting and Cardinality
StandardCommon Core K.CC.A.3Counting and Cardinality

2 class days

Day 1Teach: Choral Counting · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page

Warm up and teach

Open Choral Counting on the projector.

Practice on paper

Missing Numbers to 10
Core page Easier page Harder page
Missing Numbers to 20
Core page Easier page Harder page

Practice on screen

What Number Comes Next? — Counting

Check-up page

One more page of Missing Numbers to 10 to collect at the end of the lesson.

Make more

Make more pages like this with the Number Charts and Number Sequences maker.

Lesson 4

Connect the dots in order

Children connect numbered dots in counting order, from 1 to 10 and from 11 to 20, to finish a picture.

StandardCommon Core K.CC.A.2Counting and Cardinality

2 class days

Day 1Teach: Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page

Practice on paper

Dot-to-Dot 1 to 10
Core page Easier page Harder page
Dot-to-Dot 11 to 20
Core page Easier page Harder page

Practice on screen

Count the Stars Awake — Counting On from a Number

Check-up page

One more page of Dot-to-Dot 1 to 10 to collect at the end of the lesson.

Make more

Make more pages like this with the Dot to Dot maker.

Lesson 5

Before, after, and counting back

Children write the number that comes before and the number that comes after, and count backward from 10.

StandardCommon Core K.CC.A.2Counting and Cardinality
StandardCommon Core K.CC.B.4.cCounting and Cardinality

2 class days

Day 1Teach: Number Line · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page

Warm up and teach

Open Number Line on the projector.

Practice on paper

Before and After
Core page Easier page Harder page
Blast Off! 10, 9, 8…
Core page Easier page Harder page

Practice on screen

Before and After (a page that checks the answers)

Check-up page

One more page of Before and After to collect at the end of the lesson.

Make more

Make more pages like this with the Number Charts and Number Sequences maker.

Lesson 6

Count on from a number

Children start at the number printed on a closed box, count on over the pictures beside it, and write how many there are in all, with totals up to 10.

StandardCommon Core K.CC.A.2Counting and Cardinality
Prepares forCommon Core 1.OA.C.5Operations and Algebraic Thinking

2 class days

Day 1Teach: The Gap · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Check-up page

Warm up and teach

Open The Gap on the projector.

Practice on paper

Count On from the Box
Core page Easier page Harder page

Check-up page

One more page of Count On from the Box to collect at the end of the lesson.

Make more

Make more pages like this with the Counting maker.

Lesson 7

First, second, third

Children find the first, second, third, and later places in a line, counting from the end that is marked.

2 class days

Day 1Teach: The Counting Line · Practice on paper (Core page)
Day 2Practice and check: Practice on paper (Easier page, Harder page) · Practice on screen · Check-up page

Warm up and teach

Open The Counting Line on the projector.

Practice on paper

First, Second, Third…
Core page
Ordinal Numbers: Find the Place
Core page Easier page Harder page

Practice on screen

Ordinal Numbers: Find the Place (a page that checks the answers)

Check-up page

One more page of First, Second, Third… to collect at the end of the lesson.

Make more

Make more pages like this with the Counting maker.

Unit check: before and after

Two short paper checks made from this unit's own worksheets. Give Check A before you teach the unit and Check B after it, and you can see what changed. Each part belongs to one lesson.

Part 1: Lesson 1, Write the numbers 11 to 20 (2 tasks)
Part 2: Lesson 2, Count and write how many: up to 20 (2 tasks)
Part 3: Lesson 5, Before, after, and counting back (2 tasks)
Part 4: Lesson 6, Count on from a number (1 task)
Part 5: Lesson 7, First, second, third (1 task)

Not in the check: Lesson 3, Lesson 4. Worksheets that cannot be split into single tasks are left out.

Check A (PDF) · 2 pages Check B (PDF) · 2 pages

Printing a check counts as a download, like any worksheet.

Answer key A Answer key B Teacher pages: points, class record, and what to do next

The answer keys and the teacher pages come with the paid Teacher plan.

This is a classroom check of this unit's lessons. It is not a standardized test, and its points are not a grade.

Unit checks