How to Teach Tens and Ones
Place value is a major Grade 1 milestone because it helps students stop seeing larger numbers as long counting lists. This guide uses bundling, language, and comparison routines to make tens and ones concrete.
📐 Standards Alignment
Understand that the two digits of a two-digit number represent amounts of tens and ones.
Compare two two-digit numbers based on meanings of the tens and ones digits.
View all Grade 1 Mathematics standards →
📦 Materials Needed
- Base-ten blocks or bundles of sticks
- Place-value mat
- Number cards
- Dry-erase board
🎯 Teaching Strategies
⚠️ Common Misconceptions
Students reverse the digits in teen numbers
Model teen numbers with one ten stick and extra ones every time.
Students think the digit 0 has no job in a number like 30
Explain that the 0 shows there are no extra ones.
📊 Differentiation Tips
Limit numbers to 11-20 first so students see one ten plus some ones.
Use quick daily warm-ups where students build, draw, and write the same number in three ways.
Introduce numbers to 99 and ask students to compare three numbers at once.
🚀 Extension Activities
- Build mystery numbers from clues about tens and ones.
- Play a trading game where 10 ones can be exchanged for 1 ten.
- Sort number cards by how many tens they have.