Workshop: Addition

Review student work and progress from previous lessons to guide instructional decisions about the following Expectations:

E1.

Use and apply place value concepts to make connections among representations of numbers to the thousands using base-ten pieces, number lines, expanded form, and standard form.

E2.

Represent and solve addition problems using base-ten piece and number lines.

E3.

Add multidigit numbers using mental math strategies (e.g., composing and decomposing numbers, counting on).

E4.

Add multidigit numbers using paper-and-pencil methods (e.g., expanded form, all-partials, and compact).

In Lessons 1–5 of this unit, students focused on addition strategies. They developed an addition strategies menu with examples for two-digit and multidigit numbers. This addition strategies menu will help guide students' choices as they find efficient ways to add.

In Part 2 of the lesson, students will identify their level of confidence with a particular concept and choose problems from three different Workshop menus. Use your own evaluation of students' progress to help guide their choices.

Plan to organize the class into partners or small groups based on problems they select. These groups may change as the Workshop progresses.