math · Grade 1
Addition Parts Within 20
Represent a total as two parts. Connect pictures, stories and addition equations.
Find this activity in the mathematics map
Explore the related learning targets, foundations and possible next connections.
Learning goals
- Represent a total as two parts. Connect pictures, stories and addition equations.
Before you begin
Count within the number range and recognize addition symbols.
Age and grade do not measure readiness. Adjust reading or adult support to preserve the intended learning goal.
Follow the sequence
Complete practice
Practice previewAddition Parts Within 20
Practice · Independent · 25 min
Represent a total as two parts. Connect pictures, stories and addition equations. A complete set with exploration, practice and application. Use the linked unit for the learning sequence and teaching guide.
1. Explore
Practice previewAddition Parts Within 20: Explore and Explain
Explore · Independent · 10 min
Represent a total as two parts. Connect pictures, stories and addition equations. A focused learn activity. Use the linked unit for the learning sequence and teaching guide.
2. Practice
Practice previewAddition Parts Within 20: Practice Independently
Practice · Independent · 10 min
Represent a total as two parts. Connect pictures, stories and addition equations. A focused practice activity. Use the linked unit for the learning sequence and teaching guide.
3. Apply
Practice previewAddition Parts Within 20: Apply and Create
Apply · Independent · 15 min
Represent a total as two parts. Connect pictures, stories and addition equations. A focused apply activity. Use the linked unit for the learning sequence and teaching guide.
4. Review
Practice previewAddition Parts Within 20: Review Connections
Review · Independent · 10 min
Represent a total as two parts. Connect pictures, stories and addition equations. A focused review activity. Use the linked unit for the learning sequence and teaching guide.
5. Check
Practice previewAddition Parts Within 20: Check Your Understanding
Check · Independent · 10 min
Represent a total as two parts. Connect pictures, stories and addition equations. A focused check 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 objects are there altogether?
- Connect the response to: There are 2 birds. 3 more arrive. How many birds are there now?
- Ask students to apply the idea: Draw two groups to show 3 + 2.
Watch for: Writing an answer without connecting the quantities to parts and whole.
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.