1. Topic Of Lesson Plan-
Partial Sums
 
2. Lesson Content-
Partial Sums, Place Value, Extended Form
 
3. Goals And Expectations-
1. Students will be able to identify the value of a digit in a given Number.
2. Students will be able to Add to numbers using the partial sums technique.
 

4. Objectives-
1. Students will write numbers out in extended form to demonstrate an understanding of value for each digit in a given number.
2. Students will use this knowledge to add numbers that have already been broken up into extended form.
 
5. Materials and Aids-
Notebooks, pencils
 
6. Methods Used and Procedures-

A. Introduction-

1. Suppose you were out shopping with no paper, pen or calculator and needed to add two 2-digit numbers together, how would you do it?
2. Explain to students that it would be easier to do mentally using a technique called partial sums.
 

B. Development-

1. Review expanded form with students.
2. Provide a 2-digit addition problem for students and ask them to break each number into expanded form, then add the expanded for numbers.
3. Point out to students how much easier it is to add numbers that are broken up into expanded form. This is called partial sums.
 

C. Practice-

1. Provide examples of other 2-digit addition problems.
2. Ask students to come up and place each number in expanded form, then add them.
3. Prompt students to think about how they might try this activity mentally.
 

D. Independent Practice-

1. Provide examples for students.
2. Allow students to work with partners and take turns solving problems using partial sums.
 

E. Accommodations For Students-

1. Remind students of the importance of writing each number out in expanded form.
2. Remind students to count out and identify the place value of each digit while writing numbers in expanded form.
 

F. Checking for understanding-

1. Write problems on the board and allow students an opportunity to answer them mentally using partial sums.
 

G. Closure-

1. Remind students how helpful this strategy can be in real-life situations, as well as helping them work faster and more efficient on exams.
 
7. Evaluation-
1. Content covered on test and quiz
2.
 

Lesson Plans from (www.AGradeMath.com)