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Adding and Substracting Decimals

Adding and Substracting Decimals

Author: Kelli Sheffield

The student will use addition and subtraction to solve problems involving decimals.

The student will watch tutorial and complete practice questions. The student will complete a STAAR worksheet.

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Adding And Substracting Decimals

Attached is a PowerPoint, lesson plan, and quiz for adding and subtracting decimals.

Lesson Plan For Adding And Substracting Fractions

Teacher: Kelli Sheffield

Subject Area: Math
Grade Level: 6th

Lesson Title: Adding and Subtracting Decimals



6.2B use addition and subtraction to solve problems involving fractions and decimals

6.11B use a problem-solving model that incorporates understanding the problem, making a plan, carrying out the plan, and evaluating the solution for reasonableness

6.11C select or develop an appropriate problem-solving strategy from a variety of different types, including drawing a picture, looking for a pattern, systematic guessing and checking, acting it out, making a table, working a simpler problem, or working backwards to solve a problem


Materials/Resources Needed: Paper, pencil, Fraction Decimal Percent manipulative, PowerPoint.

Anticipatory Set:

It is important to understand the 60 second lesson plan over the meaning of zero before starting the quiz. This will indicate that zero has many meanings.If you have zero candy, how much do you have?  If you have 100 and take away a zero what do you have.The purpose will be for the student’s to understand that zero is a placeholder.



The student will use addition and subtraction to solve problems involving decimals.



The student will demonstrate am understanding of numbers, operations, and quantitative reasoning.



I will model for the students that zero is just a place holder. I will go over fraction, decimal, and percent with the students using the pictorial model.


Check for Understanding:

Prior to working the problems the students will use FASTDRAW. FASTDRAW can be located in the PowerPoint. The student will use all the steps when finding the solution to the problems.



Guided Practice:

For guided practice the students will do STAAR notes. STAAR notes provide the students with adequate time and frequent opportunities to rehearse and learn arithmetic facts.


The student will work decimal problems at home after watching the tutorial.


Independent Practice:

The students will take the quiz.






Addintg and Substracting Decimals