Bellwork Sept 15, 2015SPI 0807.Inq.5: Bias and Error

1. Which part of the experiment is most likely the source of error in this investigation?

2. The student concluded marble diameter had no affect on crater depth. Which is the most likely reason this conclusion is flawed?

3. A student investigated how the mass of a plastic disk affected its motion. The student pushed five similar plastic disks, each with a different mass, across a wooden floor. The student recorded the distance each disk traveled. The investigation was repeated five times. The student concluded there was no relationship between mass and distance traveled. What is the mostly likely source of the error in the investigation?

Bellwork Sept 15, 2015SPI 0807.Inq.5: Bias and Error

1. Which part of the experiment is most likely the source of error in this investigation?

2. The student concluded marble diameter had no affect on crater depth. Which is the most likely reason this conclusion is flawed?

3. A student investigated how the mass of a plastic disk affected its motion. The student pushed five similar plastic disks, each with a different mass, across a wooden floor. The student recorded the distance each disk traveled. The investigation was repeated five times. The student concluded there was no relationship between mass and distance traveled. What is the mostly likely source of the error in the investigation?

Different student timing

Different marble masses

Different forces of push across the floor

Today's Plan

Plan

1) Do and review Bellwork2) Go Over Objectives3) Quick Review over bias and error4)Quiz over bias and error5) Notes on Engineering Design Process

WRITE THIS IN YOUR AGENDA!Homework: NONE

Sept 15, 2015 SPI 0807.T/E.1 to 2

Engineering Design Process

STEP 1: Identify and

Research A Need

STEP 3:Make A

Prototype

STEP 2:Develop Possible

Solutions

STEP 4:Test and Evaluate

STEP 5: Modify and

Retest

Bell Work

SPI 0807.T/E.1 to 2Engineering Design Process

Date

1) A game company is working on a new computer game. Their programmers are now writing the software. What engineeringdesign process (EDP) step is this?2) After the software is written, they will hire gamers to play itlooking for errors in the software. What EDP step will that be?

Instructions1) First click on "View" from the top-menu bar.2) Then click on "Slide Show" from the drop-down menu.3) Then use the right-arrow button on your keyboard to advance through this presentation.

(Step 2A)Pick the best design

(Step 1A)Do research about

this technology

STEP 1: Identify and

Research A Need

STEP 3:Make A

Prototype

STEP 2:Develop Possible

Solutions

STEP 4:Test and Evaluate

STEP 5: Modify and

Retest

Notes SPI 0807.T/E.1 to 2

Engineering Design Process Science

Engineering Design Process (In 5 Steps with 2 substeps)

Notes SPI 0807.T/E.1 (Prototype Testing)SPI 0807.T/E.2 (Eng. Des. Process) Science

The Iron Man Movies and the Engineering Design ProcessBillionaire genius and weapons designer Tony Stark is captured

by terrorists, and they want him to build a super-weapon. Instead he builds an armored exoskeleton to fight them.

1st PrototypeMark 1 Version

3rd PrototypeMark 3 Version

Notes SPI 0807.T/E.1 (Prototype Testing)SPI 0807.T/E.2 (Eng. Des. Process)

Step 1: Identify a need Why did Tony Stark build the "Iron Man" suit? Step 2: Develop Possible Solutions What are some other options he could have built instead?

Step 2A: Pick the best design Do you think the "Iron Man" suit was the best design option?

Step 3: Make a prototype Where and how did Tony build his prototype(s)Step 4: Test the prototype Where and how did Tony test his prototype(s)Step 5: Modify and re-test the prototype How did Tony modify his prototype to make it work better?

Science

1st PrototypeMark 1 Version

Prototypes are often called mark versions3rd PrototypeMark 3 Version

2nd PrototypeMark 2 Version

Notes SPI 0807.T/E.1 (Prototype Testing)SPI 0807.T/E.2 (Eng. Des. Process) Science

Watch Video Clips1) Tony Stark tests his mark 2 prototypeLink: Mark 2-Hover Test

2) Tony again tests his mark 2 prototypeLink: Mark 2-Full Flight Test

3) Tony tests his mark 7 prototypeLink: New Suit-Up ProcedureNote: stop or mute video at the 36 second point

Notes SPI 0807.T/E.1 (Prototype Testing)SPI 0807.T/E.2 (Eng. Des. Process) Science