AP Environmental Science Flo Gullickson How to take the APES Exam Part 3 gullicf@gcsnc.com The Exam • May 1998 – 5,163 students took the first AP Environmental Science exam • In May 2009 – 59,000 students took the APES exam • What is it? – Section I – 100 Multiple Choice Questions with a time limit of 90 minutes – Section II – 4 Free Response Questions with a time limit of 90 minutes • All questions come from the test development committee – 2 years to develop and tested at different universities. • Three exams have been released to use for review 1998,2003 & 2008 • If you pass the Audit there is a third exam available to you to use. • All Essays except 1998 are on line for you to use • Exams are good to use as pre and post tests May 3,2011 from 8-12AM Effective Instructional Practices • Connect with other professionals • Develop a repertoire of effective teaching resources • Share Activities and Post exam activities • Share effective practices and lessons from with others • Begin to develop an action plan and syllabus The Exam I. Multiple Choice (60%) 100 questions in 90 minutes Breadth - Thought-provoking, fundamental ideas - Recall facts/concepts Guessing - ¼ point penalty Released Exams - three released exams The Exam II. Free Response (40%) 4 Questions in 90 minutes Depth - 1 data set question - 2 synthesis/evaluation questions - 1 document-based question Test-taking hints - Students may be asked to plot graphs, predict, describe, identify, discuss, analyze Score range 1 - 5 Common Verbs • Compare: point out similarities and differences, to examine 2 or more objects and consider the likenesses. • Explain: Tell how to do( steps), tell the meaning of or why.. Give reasons for • Describe: to give a picture or account of in words • Discuss: to consider from various points of view What to know about the multiple choice • 1/4 point for every wrong answer • No point are subtracted if you leave it blank • It may be to your advantage to guess if you can eliminate at least two • It is not expected that everyone will finish so DO NOT spend too much time on difficult questions • Use your time effectively What to know for the Free Response • Read all four essays first, pick the one you know best and start with that one • DO NOT RESTATE the question • Follow the directions EXACTLY • Underline the key words. If it says two only answer two • Give Clear and Concise answers • Do NOT make lists. You must give the answer in complete sentences • Do NOT use buzz words without an explanation, example- bioaccumulate More on Free Response • Know the common APES language, examplereduce or remediate • Do NOT give up on a question there is a point there for you • Make sure you do all your work in the PINK booklet • Where explanation or discussion is required, support your answers • Be aware of “negative” questions such as “ all of the following except” Math Problems • Remember NO CALCULATORS • Problems are simple multiplication, division and addition • Show every calculation in the PINK booklet • Do NOT give up because you’re afraid of the math • Read the free response carefully it’s not completely math so there can be points even if you can’t do the math Designing an Experiment • Hypothesis- If…….Then statement. • Example – If the number of gypsy moths increase then the number of acorns will decrease. • Control- Clearly indicate a control and the experiment • Independent and dependent variable• Independent – the variable that is being changed • Manipulative variable ( pH) What treatment will you apply • dependent - the one that you are testing • Responsive variable ( Frog) What will you measure • Data or description of experiment – describe how you will take data, materials, organism etc. How it will be graphed an analyzed. • State how you will draw a conclusion. Your experiment needs to be at least theoretically possible. • Be consistent throughout. Free Response Graphs • Set up the graph with the independent variable along the x-axis and dependent along the y-axis • Mark off axes in equal increments and label with proper units • Plot points and attempt to sketch in the curve (line) • If more than one curve is plotted, write a label on each curve ( this is better than a legend) • Label each axis • Give your graph an appropriate title( what is it showing) Types of Free Response • Data- analysis • Document based • Synthesis and evaluation • Lets look at one of each: MAJOR THEMES • Biosphere, the living world • Cycling of matter • Population • Food Agriculture & Soils • Solid Earth • • • • • • Land & Water Use Atmosphere/pollution Water/pollution Human Health Energy Laws & Influential people Hints •Follow the directions EXACTLY •Blue or Black ball pt. pen ONLY •Complete sentences ONLY •Write clearly and neatly •Look for the buzz words •When asks for two – only first two •Label parts, a-d or e •If you can’t exactly remember a word – give a shot •Read all four essays first General Misconceptions • • • • • Niche & Habitat CO2 & CFC’s Atmospheric Ozone & Ground level Ozone Fission & Fusion Origin of Acids in the Atmosphere,Sulfuric & Nitric acids • Convention & Alternative energy • Passive and Solar energy Become a Reader The Reading 60% College professors, 40% AP teachers Hierarchy (quality control ensures consistent scoring) - Readers - Table leaders - Question leaders - Chief reader No rubric/answer key