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Lesson 4
Doubles +1, Doubles −1
Est. Class Sessions: 1–2
Homework and Practice
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Assign the Using Doubles Homework Master in
the Teacher Guide. Students complete this page
to practice adding doubles and near doubles.
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Assign DPP items K–L. In item K, students practice
doubling and halving a number. In item L,
students solve doubles and near doubles.
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Assign Home Practice Part 4. In Part 4, students
practice strategies for solving addition problems
with sums more than 10 and less than 20.
