MY GOAL G.O.T. = Get On Task Design an Experiment Measurement TOPIC: MY GOAL G.O.T. = Get On Task Tues 8.21.12 Design an Experiment I will learn to design & perform an experiment JUST READ BELOW  Things to remember: How many variables should there be in an experiment? What is the Independent Variable? The Dependent Variable? What is the control group?

Procedure …. AKA “What are we doin’ today?” Review Key Terms Get in groups Do experiment Begin poster = 14 pts! End of Class Assignment

Stop Think And Review Key Terms! Hypothesis Independent Variable Control Group Experimental Group Constants

Hypothesis Must be testable! If…., Then… statement IF = the CAUSE THEN = the EFFECT IF I use Martha Stewart Water (that’s the CAUSE) , THEN my plants will grow 12 inches taller (that’s the EFFECT)

Experimental Variables: Independent Variable = TEST controlled by experimenter Dependent Variable = OUTCOME an action; a verb; it changes CAUSE EFFECT… Type of water Growth of plant

Experimental Set up: CONTROL GROUP: EXPERIMENTAL GROUP: NO changes- All conditions kept the same – cont. as usual Baseline for comparison No action taken EXPERIMENTAL GROUP: Change made – called the test group- kept the same except for the ONE thing being tested Action taken Cont. as normal with tap water Change ONLY the water to ‘Martha Stewart’ brand

Constants Are all things kept THE SAME in the experiment to make it RELIABLE. Examples: IDENTICAL kind of plant SAME size of bowl EQUAL amounts of dirt SAME time of watering plants SAME kind of….

YOUR JOB TODAY Get in groups… Get stuff out of bag Run your experiment  Collect data Independent Variable = CAUSE Dependent variable = EFFECT Control Group = normal; used to compare exp. Group to Constants = things that remain the same Simultaneously, work on poster (see board) Poster complete by tomorrow!

Stop Think And Reflect Did we reach our goal? To collaborate & perform experiment Did you reach that goal? How do you know you reached the goal? What are YOU going to do if you did not reach that goal?? 9

Check to see how much you rebmember… Independent Variable Dependent Variable Control Group Experimental Group Constants The variable you are TESTING! It is the CAUSE; some kind of ACTION taken The Variable that is the RESULT of the testing; It is the EFFECT of the cause The group that is NORMAL; you do NOTHING to it; It is use for COMPARISON The group that is EXPERIMENTED on; Something HAPPENS to it THINGS that remain the SAME in both the control & experimental groups!;

Get a MEAD 5 Star College Ruled, 8 ½ x 11 Spiral NB (3 subject) Get Course Req. signed. Get a MEAD 5 Star College Ruled, 8 ½ x 11 Spiral NB (3 subject) Mr. Tager is selling NB for $1.50 EOCA = End of Class Assignment Be the change you wish to see in the world 11 11