math · Grade 1
Build Numbers With Tens and Ones
Represent two-digit numbers as tens and ones.
Find this activity in the mathematics map
Explore the related learning targets, foundations and possible next connections.
Learning goals
- Represent two-digit numbers as tens and ones.
Before you begin
Understand the words and representations introduced in the Explore activity.
Age and grade do not measure readiness. Adjust reading or adult support to preserve the intended learning goal.
Follow the sequence
Complete practice
Practice previewBuild Numbers With Tens and Ones
Practice · Independent · 25 min
Represent two-digit numbers as tens and ones. A complete set with exploration, practice and application. Use the linked unit for the learning sequence and teaching guide.
1. Explore
Practice previewBuild Numbers With Tens and Ones: Explore and Explain
Explore · Independent · 10 min
Represent two-digit numbers as tens and ones. A focused learn activity. Use the linked unit for the learning sequence and teaching guide.
2. Practice
Practice previewBuild Numbers With Tens and Ones: Practice Independently
Practice · Independent · 10 min
Represent two-digit numbers as tens and ones. A focused practice activity. Use the linked unit for the learning sequence and teaching guide.
3. Apply
Practice previewBuild Numbers With Tens and Ones: Apply and Create
Apply · Independent · 15 min
Represent two-digit numbers as tens and ones. A focused apply activity. Use the linked unit for the learning sequence and teaching guide.
Download the unit pack
Numbered activities, separate answer keys and a teaching guide in one ZIP. The pack uses the focused sequence; the complete practice sheet above is an alternative.
Teaching and response guide
- Begin with: How many tens and ones are in 27?
- Connect the response to: 3 tens and 8 ones make what number?
- Ask students to apply the idea: Draw a model of 24. Use a long bar for each ten and a dot for each one.
Watch for: Accepting an answer without checking whether it uses the material and satisfies the requested relationship or criteria.
Check the answer criteria for each task. A supported explanation may have more than one acceptable response. These activities offer evidence to discuss; completing a sheet alone does not establish mastery.
Possible next goals
Choose the next unit when its prerequisites fit your learner.