Title: Adding and Subtracting Like Fractions

Objective or Purpose: Students will learn to add and subtract like fractions.

Materials: Student text pages 208, and 209, warm-up worksheet.

Activities: Pre-class work, note taking, and worksheet series 7.2


Lesson Design   Teacher Procedure          Student Activities                 
Anticipatory Set
Journal writing and review comments, questions, and discussions.
Pre-class work activity: worksheet on adding like fractions
Listen, The quick check is done as a warm-up activity. The student will complete the warm-up sheet in about six minutes.
Input and Modeling
Introduce the "stuff needed for success", and show what they need to know.
Keywords for the week are: like fractions, unlike fractions, least common denominator, least common multiple, prime numbers, composite numbers, factors, abundant numbers, deficient numbers, simplest form, mixed numbers.  Introduce the concept of mixed numbers using pie drawings. Text pages 208-209, 1 motivate whole class activity.
Listen, see, and take notes.
Guided Practice
Show-em how it's done.
Emphasize the fact that you need to have a common denominator in order to add the fractions, and that the denominator does not change.
Hear, see, do - The students are to start their group activity and complete it before the end of the period.
Closure
Comparisons and wrap-ups
How do you add and subtract like fractions?  If the denominators are not the same what do you think you have to do?
Listen to the summary of the day's class, and note what homework is posted for the next class period.  Possible answers to the closure question, to add fractions you need a common denominator, and to reduce a fraction, you may need a greatest common factor to the denominator to recognize its path of reduction.

Independent Practice: Try questions 1-24 on page 209 for homework, and complete the worksheet if it was not completed in class.

Extension to the lesson: Start of worksheet series 7.3 take another look!

Duration of the lesson: Approximately 49 minutes.