2017-2018 Engineering Concepts Assignments

April 19th, 2018 - SREB 2.6 Math Assessment

posted Apr 18, 2018, 10:19 AM by Mr Becker

As I said in class, I will be out Thursday and Friday.

Get your paperwork DONE and on your portfolio.

Once finished, print out and complete this assessment :   Mathmatics Problems for SREB Unit 2.6
Feel free to use online resources to work through the problems.

Be prepared to hand these in on Monday, April 23rd

April 12th, 2018 - Crutch Week 1-2 Engineering Notebooks and Scientific Literature Comprehension

posted Apr 11, 2018, 11:01 AM by Mr Becker   [ updated Apr 13, 2018, 4:32 AM ]

This will probably take a couple class periods to complete.  
This is following the SREB process step by step so there are no "misunderstandings" and we have a successful project.

Complete the following instructions to begin your Engineering Notebooks:


1.       Begin by reviewing the Engineering Notebook Instructions and AC-Writing Rubric. These documents describe the items included in the Engineering Notebook as well as how your team’s Engineering Notebook is assessed.


2.      One of the initial items to be completed is the Know/Need-to-Know Chart. First, review the Project Description and the AC-Writing Rubric. These documents can help you connect your prior knowledge to the task at hand.


3.      Complete the Project Management Plan per instructions, which include the Project Management Log. If extra room is needed to describe activities, these are to be completed in a separate workspace.

4.   Complete the Team Contract.

Enabling Learning Activities:


Task 1: In teams, research reading scientific papers to explore methods of analyzing

 scientific texts. 

            A sample site is provided, although teams may find another site. 

            Sample Site:https://web.stanford.edu/~siegelr/readingsci.htm

Task 2: In your team, annotate the following articles:

             “Biomechanical Evaluation of Crutch Design Variations” 

             “CTRL – designing forearm crutch with improved user’s comfortand safety” 

             “The design of a compliant composite crutch” 


Read the articles individually, annotating each in the following manner:

             Circle unfamiliar words.

             Write questions that occur to you while reading.

             Make connections with information you already possess.

             Highlight ideas to explore further.

Task 3: In teams, use the “Reading Scientific Papers” graphic organizer 

(to support the utilization of the process of reading scientific texts) as you complete 

a deeper reading of the three articles annotated in Complete a “Reading 

Scientific Papers” organizer for each article.

Reading Scientific Papers Organizer



Task 4: Complete entries on the Source Table for each of the three articles. 

Source Table



Task 5: Begin your Vocabulary Log in your Engineering Notebook by reviewing 

the three articles and transferring the unfamiliar words you encountered into your 


Task 6: Using the Source Table, Website Credibility Checklist, and the 

Dependent Vocabulary list below, conduct preliminary research to locate 

additional sources, reading these sources to determine relevance and

usefulness to your project. 

Website Credibility Checklist


             Evaluate all web site sources, using the Web Site Credibility Checklist.

             Sources deemed relevant are to be entered on the Source Table.

             Select one source to begin reading (using the “Reading Scientific Papers” process if applicable).

             Take notes from this source in the Cornell Note-Taking Format. Cornell Note Taking


Dependent Vocabulary: 

    o      Ambulation

o       Aneurysm

o       Axillary

o       Axillary Crutch

o       Axillary Pad

o       Biomechanical

o       Canadian Crutches

o       Crutch

o       Crutch Palsy

o       Elbow Crutch

o       Forearm Crutches

o       Gait

o       Rocker-Bottom Crutches

o       Spring Loaded Crutches


Task 7: In project teams, develop preliminary research questions as you consider the following ones:


             What are our criteria and constraints for this project?

             What don’t we know yet?

             What things do we need to solve?

             How will we know when we are successful?



April 9th, 2018

posted Apr 9, 2018, 5:20 AM by Mr Becker   [ updated Apr 9, 2018, 5:46 AM ]

Welcome back from Spring Break. The votes are in, and we will be trying the Biomedical Device Unit from SREB.

(it didn't win, but it's quick, and we can get to the winner after we are done with this unit)

So without further ado........

How can we design a crutch modification to meet the needs of a specific population?

As a biomedical engineer with MobiTechMedical Corp, you are focused on developing products that make navigating the world easier for people with disabilities. A local medical school helps rehabilitate patients from a variety of backgrounds from athletes to factory line workers, and each of these groups have unique daily routines and obstacles. 

The school is interested in interchangeable extensions and modifications that can customize existing crutch systems for different subsets of the population. The medical school is interested in partnering with you and wants your team to design such a crutch modification. The successful design will integrate (or easily interchange) with existing crutch designs while permitting a specific population to navigate obstacles or complete tasks that are unique to their lives. Representatives of the medical school must endorse your prototype in order for MobiTechMedical to support your design.

After reading informational texts on mobility intended to assist you in designing, building and testing a prototype crutch modification, write an Engineering Report in which you analyze the effectiveness of your design in helping the target population, providing examples to illustrate and clarify your analysis.

As part of your research, you must identify a specific population, or subset of the larger population, to study. Your investigations will require you to interview and interact with the population to learn their needs and any restrictions or unique difficulties crutches pose in their lives. This research should apply directly to your design choices.

Your prototype design should be created in a foam model, using common foam-shaping tools to effectively represent your design. The foam design and dimensions should represent the most effective sizes based on anthropometric and statistical research on your chosen population.

Additional design considerations such as materials or structural elements are to be included as appropriate.

You should submit an Engineering Notebook that contains your preliminary investigations, designs, sketches/drawings, anthropometric research, and summaries of each section. Finally, a presentation of your prototype should be made alongside other designs. During your presentation of your prototype, you should be prepared to answer questions about the following areas:

o Information about your population

o Design methodology

o Rationale for your design

Sitting with your team, consider the Project Description, using the Have You MET the Prompt? tool.

Each team member individually conducts the Have You MET the Prompt guided reading of the Project Description..

March 22nd - Project reflection and survey question

posted Mar 21, 2018, 4:31 AM by Mr Becker   [ updated Mar 21, 2018, 6:06 AM ]

Image result for pedal electric generation

I will be at a conference at GA Tech for Thursday and Friday, March 22nd and 23rd.  Please be respectful of the substitute and work on these assignments. 

There will be consequences for causing issues!




Time for reflection.......

What went right? What went wrong?  What would you do the same, what would you do different?

Fill out the Project Reflection Sheet and put it up on your portfolio within this project.  

Answer honestly......remember, I've walked around the room and have a pretty good idea whom has done what and who hasn't contributed at all........ Are these people that you would want working on your team if you were on the job and actually being paid?

When you are done with your reflection, please navigate to the "Surveys" tab on the class EClass page and answer the 1 question survey.....this will help determine what we work on next in this class.

Use any remaining class time to freshen up your portfolios, some need  ALOT of tlc.

February 27th, 2018 - Ohm's Law Refresher

posted Feb 27, 2018, 4:40 AM by Mr Becker   [ updated Feb 27, 2018, 6:04 AM ]

Ohm's Law

Ohm's law shows a linear relationship between the voltage and the current in an electrical circuit.

The resistor's voltage drop and resistance set the DC current flow through the resistor.

With water flow analogy we can imagine the electric current as water current through pipe, the resistor as a thin pipe that limits the water flow, the voltage as height difference of the water that enables the water flow.

Ohm's law formula

The resistor's current I in amps (A) is equal to the resistor's voltage V in volts (V) divided by the resistance R in ohms (Ω):

V is the voltage drop of the resistor, measured in Volts (V). In some cases Ohm's law uses the letter E to represent voltage. E denotes electromotive force.

I is the electrical current flowing through the resistor, measured in  Amperes (A)

R is the resistance of the resistor, measured in Ohms (Ω)

Voltage calculation

When we know the current and resistance, we can calculate the voltage.

The voltage V in volts (V) is equal to the to the current I in amps (A) times the resistance R in ohms (Ω):

V=I\times R

Resistance calculation

When we know the voltage and the current, we can calculate the resistance.

The resistance R in ohms (Ω) is equal to the voltage V in volts (V) divided by the current I in amps (A):


Since the current is set by the values of the voltage and resistance, the Ohm's law formula can show that:

  • If we increase the voltage, the current will increase.

  • If we increase the resistance, the current will reduce.

Example #1

Find the current of an electrical circuit that has resistance of 50 Ohms and voltage supply of 5 Volts.


V = 5V

R = 50Ω

I = V / R = 5V / 50Ω = 0.1A = 100mA

Example #2

Find the resistance of an electrical circuit that has voltage supply of 10 Volts and current of 5mA.


V = 10V

I = 5mA = 0.005A

R = V / I = 10V / 0.005A = 2000Ω = 2kΩ

Ohm's Law for AC Circuit

The load's current I in amps (A) is equal to the load's voltage VZ=V in volts (V) divided by the impedance Z in ohms (Ω):

V is the voltage drop on the load, measured in Volts (V)

I is the electrical current, measured in Amps (A)

Z is the impedance of the load, measured in Ohms (Ω)

Example #3

Find the current of an AC circuit, that has voltage supply of 110V∟70° and load of 0.5kΩ∟20°.


V = 110V∟70°

Z = 0.5kΩ∟20° = 500Ω∟20°

I = V / Z = 110V∟70° / 500Ω∟20° = (110V / 500Ω) ∟ (70°-20°) = 0.22A ∟50°

Same kind of think work with power!


To find the Power (P)

[ P = V x I ]      P (watts) = V (volts) x I (amps)


[ P = V2 ÷ R ]      P (watts) = V2 (volts) ÷ R (Ω)


                                                            [ P = I2 x R ]      P (watts) = I2 (amps) x R (Ω)

February 12th, 2018

posted Feb 12, 2018, 5:41 AM by Mr Becker   [ updated Feb 13, 2018, 4:25 AM ]

Image result for pedal electric generator

By the end of this week, you should have a to scale rendering of your electrical generation device. 

Here is a brief from a team that already completed this challenge  Power to the Pedal

Remember to take copious notes ..... you will have to create a Technical Manual for others to build and utilize your device.

Use this to plan out your Tech Manual.... a hard copy is attached to this page.

Technical Manual Rubric


  • Technical Manual Planning Sheet

  • Technical Manual Rubric

  • Engineering Notebook  items (i.e. Daily Reflection Sheets, Project Calendar, Project Management Log, Gantt/Pert charts, sketches of prototype)

  • Team Performance Rubric

Description of Project:  To accompany your final prototype, your team will create a technical manual that adheres to the following guidelines.   This manual should be specific enough so that anyone who wants to operate your device could feasibly pick up your manual and be able to understand it.  

Your manual should include the following:

  • Headings and subheadings (or categories and subcategories) that refer to each individual section of the technical manual; everything should be adequately labeled.

  • A summary of the prototype you have developed and the purposes of the prototype should be available in the front of the technical manual.  Be specific here.

  • Accurately labeled charts, diagrams, sketches, and any other visual aids necessary for the readers of your technical manual to operate your prototype; SketchUp should be used to create your visual aids.

  • All necessary instructions should be written within the body of the technical manual, including (but not limited to) steps, procedures, troubleshooting, notes to the device operator, warnings, etc.  Instructions should use appropriate transitions.  

  • Overall organization of the manual itself should be logical, methodical, specific, and clear; your reader should be able to easily navigate your manual.

  • All sources involved in the creation of your technical manual should be published in a Resources section at the back of the manual itself; all sources should be cited using APA citation style.


Distinguished Level Performance

200 Points

Proficient Level Performance

150 Points

Basic Level Performance

100 Points

Unsatisfactory Level Performance

50 Points


 Summary/Description of Prototype

 The prototype is accurately described at the front of the technical manual in a proper summary.  The device is described in detail, especially in regard to its purpose.  





Illustrations/Visual aids

All necessary illustrations and visual aids are included in the technical manual.  Additionally, all necessary illustrations and visual aids are correctly labeled and their parts are easily identifiable.  The technical manual itself is attractive and has an attractive cover.


Grammar and Conventions


 The technical manual has been revised and edited to follow the rules of Standard English and is free of careless grammatical errors.  








A separate Resources section has been included in the back of the technical manual, citing all sources used in the creation of the prototype and/or the technical manual itself in APA format.  


The technical manual includes a table of contents, page numbers, and other components required for proper organization.  Transitions are used throughout the instructions to assist the reader navigate the manual.  

Technical Manual Planning 

These are the roles that must be distributed throughout your team in order to construct the technical manual; team members may be assigned more than one role:

Illustrations and Visual Aid Design

 Responsible for designing all illustrations and/or visual aids necessary for the technical manual
 Responsible for labeling all illustrations and/or visual aids by consulting with team members responsible for instructional design
 Will use Google SketchUp and/or similar programs to create digital designs for the technical manual

Instructional Design

 Responsible for writing all necessary instructions for the body of the technical manual, including (but not limited to) steps, procedures, troubleshooting, notes to the device operator, warnings, etc.
 Will refer to the contents of the team’s Design Portfolio (especially Reflection Sheets) to write clear and chronological instructions for the technical manual

Manual Construction and Organization

 Responsible for writing any portions of the manual necessary for organization, including (but not limited to) a table of contents, index, page numbers, etc.
 Responsible for combining all portions of the manual created by other team members to construct the manual itself


 Responsible for reviewing the ongoing work of each team member, ensuring that all aspects of the technical manual is clear and concise
 Responsible for communicating between team members during the manual construction process
 Responsible for revision of the technical manual’s rough draft and ensuring any necessary changes are made

Names of Team Member


Keep this sheet in your team’s Portfolio

1. What does your team need to include in its technical manual?

2. How will you organize your technical manual?

3. Which visual aids should you include in your technical manual? (diagrams, charts, etc.)

January 30th, 2018

posted Jan 30, 2018, 6:32 AM by Mr Becker   [ updated Jan 31, 2018, 4:24 AM ]

January 30, 2018 - What is Electricity

January 23rd, 2018 - Welcome to the shocking world of electric generation!

posted Jan 23, 2018, 5:02 AM by Mr Becker   [ updated Jan 24, 2018, 4:19 AM ]

January 23rd, 2018 - Welcome to the shocking world of electric generation

January 22nd, 2018

posted Jan 22, 2018, 5:25 AM by Mr Becker   [ updated Jan 22, 2018, 5:26 AM ]

Finish Cyberday Assignment and make sure it is submitted to the dropbox

EC - January 18, 2018

January 17th, 2018

posted Jan 16, 2018, 7:36 PM by Mr Becker

Go to the ECLASS Page for this class to get your assignment

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