Bellwork Sept 15, 2015 SPI 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, 2015 SPI 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 Bellwork 2) Go Over Objectives 3) Quick Review over bias and error 4)Quiz over bias and error 5) 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 2 Engineering Design Process Date 1) A game company is working on a new computer game. Their programmers are now writing the software. What engineering design process (EDP) step is this? 2) After the software is written, they will hire gamers to play it looking for errors in the software. What EDP step will that be? Instructions 1) 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 Process Billionaire 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. 1 st Prototype Mark 1 Version 3 rd Prototype Mark 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

1 st Prototype Mark 1 Version Prototypes are often called mark versions 3 rd Prototype Mark 3 Version 2 nd Prototype Mark 2 Version Notes SPI 0807.T/E.1 (Prototype Testing) SPI 0807.T/E.2 (Eng. Des. Process) Science

Watch Video Clips 1) Tony Stark tests his mark 2 prototype Link: Mark 2-Hover TestMark 2-Hover Test 2) Tony again tests his mark 2 prototype Link: Mark 2-Full Flight TestMark 2-Full Flight Test 3) Tony tests his mark 7 prototype Link: New Suit-Up ProcedureSuit-Up Procedure Note: 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