learning science and mathematics through engineeringepics.ecn.purdue.edu/lsme/fall15_review.pdf ·...

LSME – Final Design Review

Learning Science and Mathematics through Engineering

Estimation Team LSME

Nur Atiqah - Project Archivist

Anqi Chen - Co-Design Lead

Colin Peterson - Project Partner Liaison

Sarah Scoggin - Design Lead

Mr. Walker - Project Partner

Who Are We

• Teach concepts of estimation • Proportions • Graphing

• Design and modify mousetrap cars for: • 8th Grade Use • Ease of Use • Safety • Reliability • Cost Reduction

What We Do

• Math Day – Educational Program

• 8th Grade Students with a basic knowledge of algebra

• Held at Purdue • Lesson Plan

• Purdue Day - Exhibition

• Kindergarten through 12th grade students

• Wide scope of algebraic knowledge • Held at Indiana State Museum in

Indianapolis

Who is the Audience

What is it?

How does it work?

Why do we need it?

Mousetrap Car

• Prototyping Phase • Having the cars 3D printed • Finished testing individual prototypes • Working on lesson plan

Where We Were in Week 8

• Cars were printed • Finished Lesson Plan • Changed the amount of tape the wheels

have • Discovered design flaw

• Wheel and Axle

• Changed how rod gets attached • Changed how the string wraps around the

axle • Completed many test trials • Created Charts

In the Following Weeks

What was happening?

What did we do?

What do we hope to do for next

semester?

Axle and Wheel Flaw

• What

changed?

• Thought

Process

Rod Attachment

Old New

String Attachment

●8 Mousetraps- $2.50 for 4 from Amazon (we will buy two packs) ●String- 475 feet for $3.99 ●Rubber Bands- $3.99 ●10 stainless steel rods 3/16”- $2.51 each plus $5.25 shipping ●Total: $43.33

Final Semester Budget

Math Day

Graphs for the Students

● Data collected from 3 trials and 5 runs

each ● Shows the students the linear

correlation between rotations and distance

● Shows students one of the many ways to use algebra to estimate distance

Math Day Continued

• Delivered November 3rd, 2015

• Data From Survey After Math Day • 4.05 out of 5 for students liking it

• 3.10 out of 5 for students learning from it

• Data From Our Survey Given During

Math Day • 4.04 out of 5 for ease of use

• 3.79 out of 5 for students liking it

Purdue Math Day

Delivered November 21st, 2015

Purdue Day at the Indiana State Museum

Purdue Day Continued

• Kit

• Improve Wheels

• Work on Mousetrap and Rod Attachment

For Next Semester

Thank You For Lıstenıng

Any Questions

?

Nanotechnology Team LSME

The Team

Mantavya Sharma Design Lead

First Year

Engineering

Nia Hightower Project Partner

Liaison

First Year

Engineering

Pashin Raja Project

Archivist

First Year

Engineering

Background Information

• We aim develop an interest in Nanotechnology amongst students at a young age through the help of Lesson Plans and Hands-on Projects.

• Project starting fresh this semester.

Why Nanotechnology?

• Nanotechnology is science and engineering conducted at a Nano scale.

Medicine Energy Materials Electronics

Project Partner

• Mrs. Holli Joyal

• Our Lady of Grace Catholic Middle School

• Noblesville, IN

• Target Audience: 6th to 8th Grade Students

• Create lesson plans and manipulatives to teach the concept of Nanotechnology

Project Outline

•

Nanotechnology in Materials

– Hands on Experiments

Molecule Manipulatives

• Points of focus for lessons

Nanotechnology in Space

– Interactive game

Name of the Lesson Corresponding Activity

Hydrophobic and Hydrophilic

Properties

Nanotechnology in Material

Science

Carbon C-60 Bucky Ball

Nano Fabric Experiment

“Magic” Sand Experiment https://www.youtube.com/wat

ch?v=dempTh40lMs

3

2

1

Kiwi Camp Dry Spray

Fabric

Hydrophobic sand

Clear glass cups

Water

Spoons

Hydrophobic Sand

Clear Plastic Cups

Water

Spoons

5

4

6

Lesson Plans

Nanotechnology Research

Carbon Nanotubes

Nanotechnology in Space

Build-a-BuckyBall

Nanooze Research Activity

Build-a-Nanotube

Molecularium Website

Bucky Ball Parts Kit

Computer

Nanotube Parts Kit

Computer

Materials for Activity

Major Concepts • Nanotechnology in material science

• Nanotechnology in structures such as Bucky balls and nanotubes.

• Nanotechnology in space

Objectives Students will:

• Learn about the topics and gain a basic understanding of nanotechnology.

• Participate in hands-on experiments that will teach them about hydrophobic properties and geometry.

• Work on team building and data recording skills

Lesson Plans

Supplemental PowerPoint

Experiments

• Hydrophobic use of Nanotechnology

• Magic Sand

• Hydrophobic Spray – $16

• Magic Sand - $11

• Hydrophobic Cloth- $ 10

• Total Cost- $37

Estimated Cost

Design Process Stage

• Determined the two manipulatives that would help the students interact and understand the structure of these molecules.

C-60 Bucky Balls Carbon Nanotube

Manipulatives

Skeleton Base Structure 3-D Model of Completed Structure

Conceptual Design – Stage 1

Bond with Hexagonal Ends

Bond with Pentagonal Ends

Bond with Circular Ends



Solidworks Assembly:

Reasons for Design:

• To experiment and find out which shapes would be the most

appropriate for 3D Printing in Terms of Accuracy and Size.

• Circular cups at the end of the bonds further help with

structural stability when attached.


Results:

• Atom turned out to be light and strong.

• Pentagonal and Hexagonal holes were inaccurate.

• Bonds were strong, but rather stocky.


Circular Bond – V2

Atom – V2


Solidworks Assembly:


Atom:

• Radius was reduced from 0.75in to 0.6in. – Earlier Model was too big.

• Model is no longer completely hollow. – To help provide support to bonds.

• Holes were reduced in size. – To go along with the size decrease of Model.

• All Holes changed to Circular. – Circular were the only type of holes to be

printed accurately.

• Angles between Holes were engraved. – To help differentiate the angles and holes.

Bond:

• Length was reduced from 3.72in to 3.68in. – Earlier Model was slightly long big.

• Radius was base was reduced. – To eliminate the stocky look and feel.

• Radius of Circular extrusions were reduced from 0.75in to 0.6in. – To go along with the decrease in size of the

hole in the atom.

• Only Circular Model continued. – To compliment the similar change in the

atom.

Changes and reasons for change in Design:


Results

• Atom turned out to be smaller and more economical.

• Bond came out lighter and smaller.

• The Angle Text was too small to be 3D Printed accurately.

• The bond extrusions were slightly large.


Atom – V3


Changes and Results:

• Engraved Text Size increased to 12 pt

• Text 3D printed properly


• Inaccuracy

• Large amounts of 3D Printing

• Will have to use external 3D Printers

Conceptual Design – Issues

Magnetic Construction Kit (66 bars and 64 balls) Price: $39.95

Products on the Market

• Hatchbox 1.75mm Black PLA 3D Printer Filament - 1kg Spool (2.2 lbs) X 2 - $46.70

Estimated Cost

• Improve upon the model of the Bucky Ball Manipulative

• Create Nanotube model atoms

• 3D Print the manipulatives

• Deliver

Goals for next Semester


Any Questions

?

Robotics Team LSME

The Team

• Yuxiang Zi, Design Lead

• Yao Xiao, Project Partner Liaison

• Chuangyue Hu, Archivist

Project Partner

• Mark Supal

• Warren Consolidated Schools

• Michigan

What We Do

• Goal: to educate high school student on technology and physics principles through hands-on interaction in programming

• Design robot kit with lesson plans for high school robotics and programming course

• Audience: High school students

User Needs

• Ability to teach C programming language

• Ability to move in straight line

• Ability to detect objects

• Ability to make sound

• Ability to identify color walls

• Ability to turn 360 degrees

• Detailed lesson plans and user manual

Robot Layout

Lesson Plans

• Lesson for getting started

• Lesson for using LEDs

• Lesson for adjusting motors and wheels

Budget

• Total cost for building one prototype robot: $115.28 (without 3D printing parts)

-Arduino Uno chip

-Motors and wheels

-IR, Ultrasound, Color sensors

• Semester money spent: $170

Current Stage

• Conceptual Design

• Benchmark Product Analysis

• Detailed Design

• Project partner feedback

• Testing plan and testing

Benchmark Product

• “Boe-Bot” Arduino Educational Shield from Parallax Co. • Cost: $119.99

Benchmark Analysis

Aspect Ours

Durability

Theirs

Cost

Usability

Size

Safety

X

X

X

X

X

Comparison between Products

• Cost

• Safety

• Usability

• Durability

Testing

• What do we want to test?

What did we find out?

Issues

• Lack of understanding of Purpose

• Benchmark Product – Strong Competitor

• Lack of focus on process – Educational Prospective

For Next Semester

• Further testing – User Experience

• Lesson plan modification – Expert Evaluation

• Redesign – Lower cost


Any Questions

?

learning science and mathematics through engineeringepics.ecn.purdue.edu/lsme/fall15_review.pdf ·...

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