Algebraic reasoning ............................................................................... 128–160
Representing Addition and Subtraction, Activity 1 3(5)(A) ................................ 128
Representing Addition and Subtraction, Activity 2 3(5)(A) ................................ 132
Representing Addition and Subtraction, Activity 3 3(5)(A) ................................ 134
116Represent and Solve Multiplication and Division Problems 3(5)(B) ................ 136
Determining the Unknown in Multiplication or Division Equations 3(5)(D) ........... 140
Real-World Relationships, Activity 1 3(5)(E) ................................................... 144
Real-World Relationships, Activity 2 3(5)(E) ................................................... 146
Real-World Relationships, Activity 3 3(5)(E) ................................................... 150
Real-World Relationships, Activity 4 3(5)(E) ................................................... 156
Geometry and measurement .................................................................. 162–213
Classifying and Sorting Figures, Activity 1 3(6)(A) .......................................... 162
Classifying and Sorting Figures, Activity 2 3(6)(A) .......................................... 166
Classifying and Sorting Figures, Activity 3 3(6)(A) .......................................... 170
Classifying and Sorting Figures, Activity 4 3(6)(A) .......................................... 176
Area of Rectangles 3(6)(C) .......................................................................... 180
Area of Composite Figures, Activity 1 3(6)(D) ................................................ 182
Area of Composite Figures, Activity 2 3(6)(D) ................................................ 186
Number Lines 3(7)(A) ................................................................................. 190
Perimeter, Activity 1 3(7)(B) ....................................................................... 194
Perimeter, Activity 2 3(7)(B) ....................................................................... 198
Perimeter, Activity 3 3(7)(B) ....................................................................... 200
Perimeter, Activity 4 3(7)(B) ....................................................................... 204
Solving Time Problems 3(7)(C) .................................................................... 210
Liquid Volume 3(7)(E) ................................................................................ 212
Data analysis .......................................................................................... 214–231
Summarizing Data, Activity 1 3(8)(A) ........................................................... 214
Summarizing Data, Activity 2 3(8)(A) ........................................................... 220
Summarizing Data, Activity 3 3(8)(A) ........................................................... 226
Summarizing Data, Activity 4 3(8)(A) ........................................................... 228
Solving Problems Using Data 3(8)(B) ............................................................ 230

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