Teaching Numbers 11–20 Made Easy

Planning number lessons beyond 10 doesn’t have to be complicated.

This resource includes no-prep, interactive Google Slides designed for explicit whole-group instruction to help you confidently teach numbers 11–20 in Kindergarten.

These lessons follow a clear, predictable routine that supports number sense, engagement, and developmentally appropriate practice, without adding extra prep to your day.

This resource is also included in my Kindergarten Math Lessons + Centres: The YEAR-LONG Bundle and Ontario Kindergarten Math System | Year-Long Curriculum | Printable + Digital

This Resource Is for You If…

• you’re unsure how to structure number lessons beyond 10
• you want consistent routines without extra prep
• you want interactive lessons that keep kinders engaged
• you feel unsure if your number lessons are developmentally appropriate

What’s Included

✔️ Number lessons for 11–20

✔️ Warm-up review slides

✔️ Explicit number formation with animated & guided instruction

✔️ Multiple representations (objects, tallies, numerals)

✔️ Interactive drag-and-drop practice

Each Lesson Follows the Same Predictable Routine

1. Review previously taught numbers
2. Introduce the focus number
3. Learn how to write the number
4. Count and represent the number
5. See the number shown in different ways
6. Count forward from the focus number

Use all the slides... or delete what you don’t need to meet your students where they are!

Built-In Review + Clear Focus

Lessons begin with a quick oral review of previously taught numbers and clearly introduce the focus number.

This supports:

• whole-group participation
• low-pressure engagement
• confidence building

Explicit Number Formation (Animated & Guided)

Students learn how to correctly form each number using animated number formation slides.

These slides support:

• air writing
• whiteboard practice

Students Learn Numbers in Multiple Ways

Throughout each lesson, students explore the focus number using:

• 1:1 correspondence
• visual and concrete representations
• early decomposing conversations

This helps students move beyond rote counting and into deeper number sense.

Counting On From the Focus Number

Each lesson includes oral counting practice starting from the focus number and counting up to 20.

This routine:

• builds confidence with teen numbers
• reinforces number order
• supports whole-group participation

Easy to Use in Any Classroom

✔️ Use directly in Google Slides

✔️ Download as PowerPoint

✔️ SMARTBoard & projector friendly

✔️ Supply-teacher approved

No printing. No prep. Just open and teach.

Perfect For

• Kindergarten teachers
• Whole-group math lessons
• Introducing teen numbers
• Review and reteaching
• Teachers who want less prep

Clear routines • Engaged students • No extra prep