Part of Unit: Auxiliary Drawing
Lesson Plan Overview / Details
In this lesson the purposes of auxiliary views in support of regular orthographic views and how an auxiliary view is developed will be covered. They will develop a working drawing that includes the auxiliary view and dimensions in their proper place and position.
- 2 class periods each at
- 50 Minutes
California Career and Technology Education Standards
California Career and Technical Education Standards
- ED.C.C2.1 Use methods and techniques for employing all engineering design equipment approp...
- ED.C.C3.1 Know how the various measurement systems are used in engineering drawings.
- ED.C.C3.2 Understand the degree of accuracy necessary for engineering design.
- ED.C.C4.3 Understand the various techniques for viewing objects.
- ED.C.C5.1 Understand the commands and concepts necessary for editing engineering drawings.
- ED.C.C5.2 Know the various object-altering techniques.
- ED.C.C5.4 Apply two-dimensional and three-dimensional CADD operations in creating working ...
- ED.C.C6.2 Apply dimensioning to various objects and features.
- ED.C.C9.2 Develop drawings using notes and specifications.
- ED.FS.11.0 Demonstration and Application
California Academic Content Standards (Reinforced)
- ELA.9-10.R.CAGT.2.5 Extend ideas presented in primary or secondary sources through original analysis...3
- ELA.9-10.R.CAGT.2.6 Demonstrate use of sophisticated learning tools by following technical direction...2
- M.7.MG.1.2 Construct and read drawings and models made to scale.11
Objectives and Goals
- Describe the purpose of an auxiliary View
- Explain how an auxiliary view is projected
- Draw viewing plane lines related to auxiliary views
- Drawing auxiliary views as part of a working drawing
Activities in this Lesson
- Need for Auxiliary View - Hooks / Set
Using a projector, open an orthographic working drawing without an inclined or sloping surface. Assess their prior knowledge of the standard views (front, top, and right side views. Review for content. Open a second orthographic working drawing that contains a sloping or inclined surface. Ask students how they would handle sloping surfaces when not see the true length.
- Auxiliary View [ View Image ] [ Download Original ] Auxiliary view projected perpendicular from the inclined surface
- Axillary View Drawing With General Notes [ View Image ] [ Download Original ] An auxiliary view projected from the principle view with dimensions in decimal inches. Also with general notes
- Drawing Samples - Lecture
Provide a handout of an isometric part that includes sloping surface. I would provide the students with why we need an "auxiliary view" to correctly provide the information to build the product.
Show the power point "Auxiliary Views" with additional information to the students. Emphasize projection perpendicular to the inclined edge to create the auxiliary view.
Additional vocabulary would be introduced at this time. Issue additional samples fo completed auxiliary drawings to give the students examples of what is expected. As the drawings are reviewed the vocabulary needed would also be expressed.
- Auxiliary View Vocabulary [ View Image ] [ Download Original ]
- Auxiliary view projected from the front view [ View Image ] [ Download Original ] Drawing contains both a full section and an auxiliary view projected from principal view
- Auxiliary Drawing [ View Image ] [ Download Original ] A SkillsUSA problem that required a partial auxiliary view projected from the front .view. With General Notes added a s part of the problem.
- Auxiliary Drawings Explained (Page 1 of 2) [ View Image ] [ Download Original ] First page of a two page handout briefly describing the use of auxiliary views.
- Auxiliary Drawings Explained (Page 2 0f 2) [ View Image ] [ Download Original ] Page 2 Illustrates auxiliary views projecting perpendicular to front, top, or side views as needed.
- Auxiliary Views Power Point [ Download ] This auxiliary views power point demonstrations the layout procedures for creating an auxiliary view from the frontal plane and the dimensioning techniques to fully describe this additional, alternate view.
- Sketching Activity - Lecture
Provide a completed working drawing with dimensions that includes a sloping surface. Review the drawing with the students emphasizing proper use of vocabulary.
Issue a second working drawing handout which includes the principle views shown. I would have a similar drawing on the projector and the students will sketch the auxiliary view using perpendicular lines and related steps to compete the assignment. Move around the lab visually checking for understanding.
- Practice - Lab / Shop
Second day of activity.
Students are issued a second working drawing that need an auxiliary view and proceed to provide the necessary views (including the auxiliary view) with dimensions.
1 . Students will create lines perpendicular to the line that represents the inclined.
2. Have students project lines from the top view (in this case) to the front view and copy the inclined lines to the opposite end of the perpendicular lines.
3. Transfer the depth dimensions to the auxiliary view using construction lines.
4. Finish the auxiliary view by transferring the remaining dimensions..
5. Develop object lines and add required dimensions.
- Assessment Types:
- Rubrics, Projects, Draw Checking Criteria
Completed drawings are assessed against the attached "DRAW CHECKING" criteria. Since the first is an exercise in completing the auxiliary view by adding sketched lines, the total maximum points would be 10 points based on the attachment.
The second assignment in this lesson is a drawing assignment is of significant value and valued at a maximum of 20 to 30 points since all views are to be dimensioned based on the instructor.
The third assignment is used at the end to ensure that the students have mastered the layout concept .
The assignment is elementary in nature thus valued at a maximum of 10 points.
- Auxiliary View Quiz - Missing Views [ Download ] Addition of missing lines in auxiliary view
- Drawing Check Rubrics [ View Image ] [ Download Original ] PAGE 1 0F 2...Drawing check rubrics assessing the details of a drawing including general appearance, drawing details, design information, dimensioning practices, quality of workmanship, and general notes if applicable.
- Page 2 0f 2 Draw Check Rubrics [ View Image ] [ Download Original ] A multi-level assessment criteria to be utilized with elementary (one/two day) activities, for intermediate efforts (up to a week assignment, or for major assignments.