1. Topic Of Lesson Plan

Adding and Subtracting Decimals 


2. Lesson Content

Vocabulary
sumthe total amount resulting from add two or more numbers together
differencethe remainder left when subtracting one value from another 


3. Goals And Expectations

Students should be able to add and subtract numbers containing decimals.



4. Objectives

1. Find sums of decimals with a variety of wholenumber and decimal
places.
2. Find differences of decimals with a variety of wholenumber and
decimal places. 


5. Materials and Aids

grid paper
Promethean Board 


6. Methods Used and Procedures

A. Introduction
1. In this lesson you will learn to add and subtract decimals.
2. Look at the Visual Learning at the top of p. 64 in your textbook.
Go over example together.



B. Development
1. It is important to line up the decimal places.
2. You may annex a zero at the beginning or end of a number and it
will not change the value.
3.Check answers for reasonableness by comparing them to an estimate. 


C. Practice
1. Another Example p. 64 in text.
2. Hand out grid paper or model using notebook sideways so there are
columns to line up decimals.
3. Guided Practice p. 64 in text. Work out together. 


D. Independent Practice
1. Independent Practice section p. 65 in text.
2. Tell students to check the reasonableness of their answer by estimating
an answer.
3. Support students as needed. 


E. Accommodations For Students
1. Reduced number of problems for REI students.
2. Problems written on grid paper for those who have trouble lining
up the decimal.



F. Checking for understanding
1. Spotcheck students answers on guided practice.
2. Grade Independent Practice tomorrow.



G. Closure
1. Review. Ask if there are any questions.
2. Provide assistance to any students.
3. Tell students tomorrow we will be working on multiplying decimals. 


7. Evaluation

1. Students should be able to accurately add decimals.
2. Students should be able to accurately subtract decimals. 



