Download presentation

Presentation is loading. Please wait.

Published byAndy Sutherby Modified over 3 years ago

1
Complete Force & Motion Concept Survey – Post Test Name & SID Discussion of Pre and Post Test results from 2007/8 Why are the performances in the Post tests so BAD ? How can you improve your performance? Better problem solving strategies Identity Setup Execute & Evaluate Later lecture will discuss your Pre and Post Test performance

2
Identify Setup Execute Evaluate IDENTIFY Identify what the question asking Identify the known and unknown physical quantities (units) SETUP need a good knowledge base (memory + understanding) Visualise the physical situation Diagrams - reference frames / coordination system / origin / directions Write down key concepts, principles, equations, assumptions that may be needed to answer the question EXECUTE Answer to the question from what you know. Numerical questions - solve before calculations - manipulate equations then substitute numbers add comments. EVALUATE CHECK - answer reasonable, assumptions, units, signs, significant figures, look at limiting cases

3
Questions 1 3 4 6 7 Force ??? acceleration and velocity

4
2008 total sample N = 115 100% post N = 32 (27.8%) pre N = 4 (3.5%) post N = 31 (27.0%) pre N = 56 (48.7%) post N = 52 (45.2%) pre N = 55 (47.8%) Cat.1Cat.2 Cat.3 2007 total sample N = 90 100% post N = 12 (13.3%) pre N = 0 (0%) post N = 43 (47.8%) pre N = 46 (51.1%) post N = 35 (38.9%) pre N = 44 (48.9%) Cat.1Cat.2 Cat.3 Questions 1 3 4 6 7 correct 4/5 guess

5
Identify Setup Execute Evaluate m x y

6
m x y Newton’s 2 nd Law Force and acceleration are in same direction Force and acceleration vary in the same manner

7
Identify Setup Execute Evaluate m x y Newton’s 2 nd Law Force and acceleration are in same direction Force and acceleration vary in the same manner Incorrect reasoning – force related to velocity in direction and magnitude

8
Your Pre test Question 12 – Coin tossed in the air – force at its highest point ? Correct answer Force is down and constant (A) 5% Incorrect reasoning Force is zero (D) 86%

11
y 1 = sin(2 x/ ) y 2 = sin(2 (5-x)/ ) y 1 + y 2 = 6 m

Similar presentations

OK

Let’s Do Algebra Tiles Roland O’Daniel, The Collaborative for Teaching and Learning October, 2009 Adapted from David McReynolds, AIMS PreK-16 Project.

Let’s Do Algebra Tiles Roland O’Daniel, The Collaborative for Teaching and Learning October, 2009 Adapted from David McReynolds, AIMS PreK-16 Project.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on different sectors of economy for class 10 Ppt on views in dbms tutorial Ppt on fibonacci numbers definition Ppt on ozymandias download Ppt on dry drunk syndrome Ppt on writing effective research questions Ppt on water cycle for kindergarten Ppt on different solid figures video Ppt on mumbai as financial capital of india Ppt on advancement in science and technology