Kindergarten Magic of Math Unit 9: Comparing Numbers & 1 More/1 Less (0–20)

Build strong number sense and comparison skills with this engaging, hands-on math unit designed to help kindergarten students confidently work with numbers to 20. This unit combines meaningful math discussions, visual models, and interactive activities to help students truly understand how numbers relate to one another.

What This Unit Covers

Week 1: Compare Numbers to 20

Students learn to compare numbers using concrete objects, visual models, and numerals.

• Compare sets to determine more and less
• Identify when groups are equal or not equal
• Compare numerals using a number line
• Use double ten frames to compare teen numbers
• Build and explain numbers that are greater than, less than, or equal to a given number

Through hands-on activities like fish counters, bug matching, and number games, students develop a deep understanding of comparison strategies rather than just memorizing symbols.

Week 2: 1 More and 1 Less (0–20)

Students explore number relationships by identifying how numbers change when we add or take away one.

• Find one more by counting on and using a number line
• Find one less by counting back
• Identify numbers that come before and after
• Determine the number that comes between two numbers
• Apply all skills in mixed review activities

Students build understanding through fun, real-world models like birthday cakes, snack shops, and number neighborhoods, helping them visualize how numbers increase and decrease.

What’s Included

• Daily lesson plans with clear objectives and teacher guidance
• Engaging mini-lessons with modeled strategies and math talk
• Hands-on partner activities and games
• Ready-to-use printable manipulatives (cards, counters, mats, spinners)
• Independent practice worksheets for reinforcement and assessment
• Built-in math vocabulary support

Why Teachers Love Magic of Math

• Makes math interactive, visual, and meaningful
• Builds deep conceptual understanding of number relationships
• Provides structured, easy-to-follow lessons
• Keeps students actively engaged through games and movement
• Designed specifically for kindergarten learners

Perfect For

• Whole group math lessons
• Small group instruction
• Math centers
• Intervention and reteaching

Give your students the confidence to compare numbers and understand how numbers change with Kindergarten Magic of Math Unit 9—where math concepts come to life through hands-on learning and meaningful practice.