1. Multiply Two-Digit Numbers
Unit 7 Lesson 3
Expanded Notation
Short Cut Method
Work Backward Strategy
Rectangle Rows method

2. Rectangle Rows method 67 43 x 67 67 2,680 x 40 + 201 2,680 2,881 40 +
Recommendations
You can make any necessary changes to the ppt to meet the specific needs of your students
Preview in presentation mode prior to using in your teaching– there is a lot animation!
Teacher Edition (TE): p “Discuss Methods for Two-digit Multiplication”
Miscellaneous Notes
Slide animation represents the step by step process of multiplying of two digit numbers using the Rectangle Rows Method
Student Activity Book, p.267 and 269j
Rectangle Rows method

3. Step 6
Step 3
Step 4
Step 5
Step 1
Step 2 2 67
x 43
201 80 2 67
x 43
201
2,680
2,881 2 67
x 43
201
2,680 2 67
x 43 1 2 67
x 43
201 2 67
x 43
201
Recommendations
You can make any necessary changes to the ppt to meet the specific needs of your students
Preview in presentation mode prior to using in your teaching– there is a lot animation!
Teacher Edition (TE): p “Discuss Methods for Two-Digit Multiplication”
Miscellaneous Notes
Student Activity Book, p.268
Slide animation represents the step by step process using the Short Cut Method. The green represents the specific step (1-6) within the Short Cut Method.
Short Cut Method

4. Expanded Notation 60 + 7 40 + 3 40 + 3 60 + 7 67 = 60 + 7
2, 881
Expanded Notation
Recommendations
You can make any necessary changes to the ppt to meet the specific needs of your students
Preview in presentation mode prior to using in your teaching– there is a lot animation!
Teacher Edition (TE): p. 658 ”Discuss Multiplication Methods ”
Miscellaneous Notes
The animation represents the step by step process of the Expanded Notation. Some students need to see the process step by step in order to make connections and apply it to future learning. 40 + 3 40 + 3

5. Multiply by Tens First 67 x 43 Multiply by Ones First 67 x 43
Short Cut method
Multiply by Tens First 67 x 43
Multiply by Ones First 67 x 43
201
201
2,680
2,881
2,881
2,680
Recommendations
You can make any necessary changes to the ppt to meet the specific needs of your students
Preview in presentation mode prior to using in your teaching– there is a lot animation!
Teacher Edition (TE): p “Discuss Multiplication Methods”
Miscellaneous Notes
Slide animation represents the step by step process using the example in the Student Activity Book, p.269
The green represents the tens place value. The red represents the ones place value.

6. Rectangle Sections Method
40 x 60 = 2,400
40 x 7 =
3x 60 =
3 x 7= 40 + 3 40 + 3
2,881
Recommendations
You can make any necessary changes to the ppt to meet the specific needs of your students
Preview in presentation mode prior to using in your teaching– there is a lot animation!
Teacher Edition (TE): p “Discuss Multiplication Methods”
Objective(s): 1.03
Miscellaneous Notes
Student Activity p. 269
Slide animation represents the step by step process of the order of multiplying the partial factors
Rectangle Sections Method

7. Roles in Collaborative Learning
Leader/Manager
Makes sure every member of the group contributes.
Focuses work around the problem given. The leader is responsible for a final product or solution.
Supports and encourages members of the groups.
Recorder
Compiles group member’s ideas on a presentation sheet/poster.
Makes sure to capture everyone’s thoughts and ideas as a collaborative group.
Time Keeper
Encourages the group to stay on task.
Announces amount of time left (halfway through, 3 minute warning).
Presenter
Presents the group’s solution to the class.
Makes sure to include all ideas from the presentation sheet.
Assistant
Ensures that the group has all materials to complete the task.
Makes sure that all materials used are returned to the right place when the task is complete.
Raises hand for teacher if all members of the group agree that they have the same question and need help.
Recommendations
You can make any necessary changes to the ppt to meet the specific needs of your students
Preview in presentation mode prior to using in your teaching– there is animation!
Teacher Edition: Problem Solving Strategy: Work Backward
Objective(s):1.03
Miscellaneous Notes:
OPTION: have students in cooperative groups of 4 or 5 using the Roles in Cooperative Learning (post the Day 117 Multiplying Two-Digit Numbers Powerpoint Slide 7 for students to refer to discuss and solve questions 5-8 in Student Activity Book, p From the discussion there could be a number of ways to solve it. The group must come up with one way to solve it, represent it, and present to their peers.

8. Work Backward Strategy
What do I know?
What am I trying to find?
Work backwards to find the answer
Look back and check
Recommendations
You can make any necessary changes to the ppt to meet the specific needs of your students
Preview in presentation mode prior to using in your teaching– there is a lot animation!
Teacher Edition (TE): p “Problem Solving Strategy: Work Backward”
Miscellaneous Notes
Student Activity Book p. 270