Lesson Plan Industry Sector
Engineering & Design

## Finding Area and Perimeter using the AutoCAD program

### Lesson Plan Overview / Details

Students will draw a simple cabinet using the AutoCAD program and all commands that apply. Students will also learn to use an AutoCAD command called AREA to calculate for Area and Perimeter. Additional understanding will be to know the difference between area and perimeter using geometric concepts, relationship and understand how they are connected to other mathematical topics and school subjects.  Two worksheets with performance base problems will be provided.

Because of the nature of this lesson that requires students to know basic commands and general knowledge of drafting, this lesson was given during the mid-year of school. Teacher will decide based on knowledge of his or her students before giving this lesson.

### Lesson Time

Lesson 1/Lesson 2
110 Minutes

### Objectives and Goals

• Students will watch a video that has relevance to architecture design and how AREA and PERIMETER is used in the real world. Because the workplace requires accurate measurements, students will understand how mistakes can cost time and money.
• Using the AutoCAD program students will make correct input that dictates the outcome and do the proper editing to create the cabinet drawing (lesson 2) according the worksheet dimensions.
• Student must use the proper layers according to the standards followed by the industry or classroom standards. This includes line types, weights and color as specified by the teacher.
• In lesson 1- students will use a tape measure and a calculator to measure items specified by the teacher to figure for AREA and PERIMETER. Items measured where based on furniture in my classroom. Teacher can take this lesson outdoors and still have the same learning results.
• In Lesson 2- students will draw a simple cabinet and answer question from worksheet 2.

### Prerequisites

• Students are given specific information prior to starting this lesson which includes providing them a real world situation and how it will relate to an industry skill that could be encountered in the future. Also, because students will work in groups, computers will need to be assigned to those groups. The teacher will ask the students to select a partner for this lesson and identify which computer station they will be using so that none of this process will eat up instructional time during the following lesson. In most cases stations and partners have already been selected during the course of the year. Problems that may arise includes a partner who didn't show up for school that day or a computer station not working.
• Materials required for this lesson includes worksheets, pencils, scrap paper, calculators, tape measures and computers with the AutoCAD program, Additional support papers from their notebooks will also be required.

### Activities in this Lesson

• Beginning of Lesson - Hooks / Set

On the day of the lesson, using prior knowledge, the teacher will ask students if they know the difference between AREA and PERIMETER.  A downloaded video and pictures will be shown to   further develop students understanding and how AREA and PERIMETER relates in the real world. While the students are watching the video, the teacher will use the time to take roll and answer any questions that may arise.

To further engage the students in the lesson, the teacher will use the provided pictures to show the importance of correct measurements and how it could effect the final outcome of any project.

After the video and pictures are presented, the teacher will answer any questions before they begin lesson 1.

If Available- Teachers Aide will hand out any work sheets and support papers that will be included in this lesson plan. Otherwise the teacher will hand-out the required worksheets and materials.

• The first part of this lesson requires students to work in groups and roam the classroom and measure items specified by the teacher. Materials required for this part are a tape measure, calculator, pencil and AREA AND PERIMETER worksheet. Students are to measure each item listed using a tape measure and writing their result on the provided worksheet.

All students will justify their answers using a tape measure and a calculator. Additional assessments will be provided by students writing down their answers on their worksheet.

Teacher will provide help by roaming the room and check for understanding. All students are to finish the worksheet provided and turn in their results to the teacher.

Worksheet copy is provided below for teacher use.

• Find AREA and PERIMETER worksheet [ Download ] Part 2 Worksheet
• In the second part of this lesson, students will be asked to open up any drawing from their folders saved on the computer. Using the AutoCAD program students will draw the basic cabinet with the given dimensions using AutoCAD. Additional support will include students notebooks that contains a cartesian coordinate sheet, and AutoCAD command sheet.

• When all students have finished drawing the cabinet on the computer, They will begin the second part of this lesson. The teacher will begin by showing a video on how to use the AREA command using the AutoCAD progam. After the video, the teacher will ask the students to answer questions 1 through 6 from their worksheet. Using only a pencil, so mistakes may be corrected. The teacher will roam the classroom to check for understanding and help others who have not finished drawing the cabinet. The cabinet must be drawn in order to answer all questions.

All students will justify their answers using the AutoCAD program and a calculator. Additional assessments will be provided by students giving their answers from the worksheet provided.

Worksheet copy is provided below for teacher use.

### Assessment

Assessment Types:
Demonstrations, Teacher-Made Test, Observations,
• By the end of this lesson students will understand the difference between AREA and PERIMETER and how they relate to the real world.
• All students will turn in 2 completed worksheets to be graded and checked for understanding. The teacher will decide if a follow-up may be required to assure all students have a clear understanding.
• Students will provide feedbackto enable the teacher to know the successes and failures of the lesson and where they can improve to help keep students interest.