Kindergarten
Grade One
Grade Two
Grade Three
Grade Four
Grade Five
Grade Six
Grade Seven
Grade Eight
Grades Nine - Twelve
 
<<Back To Grades 9-12 Units/Lesson Plans

Choices! Choices! Choices!

Submitted by: Julie Anna Hartwell

Grade Level: 9-12    Subject: Advanced Algebra for the Technologies

Core Curriculum Objective:  Given sets of data, how do you find the total number of choices using the Fundamental Counting Principal and tree diagrams? (AAT7-J)

Overview: In this lesson, the learner will define and apply the Fundamental Counting Principle. The learner will use tree diagrams and the Fundamental Counting Principle to determine the total number of choices.

Purpose/Essential Question: Given sets of data, how do you find the total number of choices using the Fundamental Counting Principal and tree diagrams?

Time Frame: One 90-minute block +out of class time to complete culminating assessment

Resources/ Materials :

Class roster

Catalog pages - provided by teacher (top, pant/skirt and shoe page)

Overhead transparencies

Culminating Assessment:

Students will be asked to create, using the class roster, a tree diagram identifying the number of possible student groups, using 3, 4 and 5 class members at a time. Students will verify the number of groupings using the Fundamental Counting Principle numeric method.

Instructional Activities:

Launch Activity:

Students, in cooperative pairs, will choose 3 clothing pictures (shirt, pants and shoes) from a popular catalog and create as many outfits using the 3 items chosen. Students should find all possible options, whether they would choose the clothing combination themselves or not.

 

Cognitive Teaching Strategies:

1. Students will describe the thought process they went through to determine the number of combinations. As pairs describe their process, the teacher will write common elements on the board and discuss.

2. The teacher will introduce the Tree Diagram to students, showing several examples.

3. Students, in cooperative pairs, will create a tree diagram using their original choices as the teacher circulates giving assistance.

4. The teacher will introduce the numeric method of determining the number of possibilities. While still in pairs, students will compare their results with that of the numeric method and determine errors made, if any.

5. Pairs will then write paragraph comparing and contrasting the two methods. One student will write the "compare" paragraph and one will write the "contrast" paragraph. Students should discuss which method is most accurate and which would be most beneficial in particular circumstances and why. Pairs will then submit papers for grading.

 

Culminating/Summarizing Activity

1. Each student will be given a copy of the class roster. Students will have to determine the number of students groups possible, combining 3,4 and 5 students at a time. Students will create a tree diagram showing possibilities as well as determine the Fundamental Counting Principal numeric answer.

1. The teacher will circulate, making suggestions when needed.

2. Students are expected to have a neat final product that is thoughtful and well planned. Accuracy of the tree diagram and steps accompanying the Fundamental Counting Principal are mandatory.

3. The teacher should use the group arrangements that the students create throughout the year for cooperative learning exercises. Students should keep a copy of this exercise in the front of their notebook and be ready to group students using their diagram when called upon by the teacher. Students should be allowed to complete this problem overnight to allow for revisions.

4. Before leaving, students will write a short paragraph describing the problems they foresee in completing the tree diagram and how they will address them.

copyright 2003  Richland County School District One