TEKS Lesson Plan/Unit Plan



Focus Plan

Texarkana Independent School District

|GRADING PERIOD: |1st six weeks |PLAN CODE: |M11.1.1 |

|Teacher: |Ronda Jameson |Course/subject: |Math 11 |

|Grade(s): |11 |Time allotted for instruction: |2 class periods on block |

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|Title: |Linear Functions I |

|Lesson TOPIC: |Students will understand that a function represents a relationship in which one quantity is |

| |dependent upon the value of another quantity. |

| |Functions can be represented in a number of ways (graphs, equations, tables, etc.) Students will|

| |identify functions, represent functions, and translate among various representations of |

| |functions. They will recognize and name independent and dependent variables in a functional |

| |relationship. |

|TAKS Objective: |Objective 1: The student will describe functional relationships in a variety of ways. |

| | |

|FoCUS TEKS and Student Expectation: |A. B1 (B) The students uses data sets to determine functional relationships between quantities|

|Supporting TEKS and Student Expectations: |A. B1 (A) The student understands that a function represents a dependence of one quantity on |

| |another and can be described in a variety of ways. |

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|Concepts |Enduring Understandings/Generalizations/Principles |

| |The student will understand that |

|Identify the difference between a |A function is a relation that assigns exactly one value of the dependent variable to each value of the |

|relation and a function |independent variable. |

|Use data sets to determine functional |Describe functional relationships by selecting an equation or inequality that describes one variable in|

|relationships between quantitites |terms of another variable |

|Use properties and attributes of |The student in solving problems, collects data, records results, organizes the data, makes a graph, and|

|functions and apply functions to |interprets the results. |

|problem situations. | |

[pic]I. Sequence of Activities (Instructional Strategies)

A. Focus/connections

Understanding functional relationships is an essential skill for student success on 11th

grade TEKS. More than half (52%) of the student expectations which are tested on

TAKS at the exit level are connected to functions or functional relationships.

B. Instructional activities

(demonstrations, lectures, examples, hands-on experiences, role play, active learning experience, art, music, modeling, discussion, reading, listening, viewing, etc.)

Overhead sheet sequence will trace the evolution of the understanding of functional relationships from grades 6-11. Teacher will build a “ladder” for understanding functional relationships as she guides students through the TAKS released test items for grades 6-11. As teacher works through the sequence of overhead sheets, he should teach/review concepts which build a foundation for understanding functions. These concepts include: Vertical line test, mapping, “x” and “y” values in a table.

C. Guided activity

Activity #1: (Introduction to Functions I)

Introduce this lesson by giving “real-life” examples of dependent relationships. Students write a sentence which describes a dependent relationship and identify the independent and dependent quantities.

Example: My grade in this class depends on the number of hours I study.

My mother’s mood depends on the cleanliness of our house.

Activity #2: Height vs. Distance: Toy Cars Activity

In order for students to have a clear and lasting understanding of functional

relationships, it is imperative that they become proficient in recording data

in which the relationship between two variables is demonstrated. Students will

work in groups of 2-4 to set up a clarifying activity (Height vs. Distance: toy

cars). Students will record data, make a table, create a graph, and summarize

their data for the class. Teacher will guide understanding by circulating between

groups, facilitating cooperation, and checking for understanding.

D. Accommodations/modifications

Some students will need more help than others on the instructional activities. These students may be paired with a partner or given extra guidance from the instructor.

E. Enrichment

Activity #3: Swinging Functions: Pendulum Activity

Students make pendulums and measure the period of the pendulums, using different lengths of string. Students record their data, make a table, and create a scatter plot. Using their findings, students predict the period for any given string length.

Activity #4: Crickets – Nature’s thermometer

Students determine and use functions to examine the relationship between the number of chirps of three different types of crickets and the temperature.

II. STUDENT PERFORMANCE

A. Description

Students will complete Activity 1 as a class. Students should be able to determine whether a dependent relationship exists between 2 given variables. Students will be able to discuss variables which do NOT have a functional relationship (example: Day of the week and number of cavities).

Students will complete Activity 2 in groups of 2-4. They will set up the activity, gather data, record the data in a table, assign variables, record data on a grid, label the x and y axes, analyze the data, and make predictions.

B. Accommodations/modifications

Students with modifications should have answer choices reduced to 3 (instead of 4) on the quiz. Enrichment activities might not be appropriate for these students.

iii. Assessment of Activities

A. Description

The teacher should circulate among the students to make sure the activities are

Set up and completed correctly.

Quiz over Functions I should be administered in the last 30 minutes of Day 2.

B. Rubrics/grading criteria

Activities:

|Criteria |Specifics |Points |

|Contribution to the Group |Cooperation |0-25 Points Possible |

| |Participation | |

| |Engaged in the activity | |

|Table/ Graph |Correctly label the axis |0-25 points |

| |Correctly assign the variables | |

| |Record data | |

| |Plot data | |

|Activity planning, prep, and |Set up and carry out instructions of |0-25 points |

|completion |activity | |

|Make predictions based on data |Was a prediction written on activity sheet?|0-25 points |

| |Was prediction clearly connected to data | |

| | |100 points |

.

C. Accommodations/modifications

Students should be active participants on activities 1 and 2.

D. Enrichment

Bonus points should be given to any students completing enrichment activity correctly.

Students enrolled in AP courses should complete Enrichment activities as regular classroom activities.

IV. TAKS Preparation

A. Transition to TAKS context

B. Sample TAKS question:

(TAKS 2004, #31)

Which equation best describes the relationship between x and y shown in the table below?

|x |y |

|1 |3 |

|2 |12 |

|4 |48 |

|6 |108 |

|9 |243 |

A y = 3x

B x = 3y

C x = 3y2

D y = 3x2

(Answer: D)

Students should be familiar with examples of how this concept has been assessed on

TAKS in the past. Students should be proficient in the following:

• Look at a table and identify the dependent and independent variables.

• In matching a table of values to a function rule, know that the correct function rule will be written with the dependent variable isolated (example: y = …)

• In matching a table of values to a function rule, eliminate answer choices in which the

dependent variable is NOT the variable we are solving for.

• Given one representation of a function, match it with a different representation using

“plug & chug” (substitution) OR the table function of the graphing calculator.

V. Key Vocabulary

Dependent variable, independent variable, function, function rule, variable, equation, vertical line test, X axis, Y axis

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