People forget what you say and they forget
- Slides: 25
People forget what you say, and they forget what you do. But they will never forget how you make them feel.
2+2 = 5 Rule 2 +2 5 George Washington was our second president. This sentence ain’t got not good grammar.
DEFINITION #1 Independent Variable What you change in the experiment (to make life easier for your students, you may want this “change” to be measurable - i. e. weight, mass, volume, height, etc. . )
DEFINITION #2 Dependent Variable The result from the change you made (this variable, also known as data, “depends” on your independent variable and, again, should be measurable)
The INDEPENDENT VARIABLE and the DEPENDENT VARIABLE are close relatives and can be found throughout the following steps of scientific inquiry: QUESTIONS HYPOTHESIS DATA TABLES and GRAPHS
All scientific experiments begin with simple questions…. It is this sense of inquiry that ESP begins its journey…. …with a QUESTION
Questions How does the _________ (Independent Variable) affect the __________ (Dependent Variable) ?
Hypothesis If the ____ is (IV) then the ____ (DV) ______ , (increased/decreased) will ______. (increase/decrease)
Data Table
Data Table Independent Variable Dependent Variable Trial One Trial Two Trial Three Average
Title Dependent Variable Independent Variable
GRAPH TITLES The effect of the on the __________ (Independent Variable) _________ ? (Dependent Variable)
Students must see the INDEPENDENT VARIABLE and the DEPENDENT VARIABLE in the QUESTIONS HYPOTHESIS DATA TABLES and GRAPHS
Let’s try an example. . . Question: How does the length we pull backwards on the toy car affect the distance it will travel?
How does the length we pull backwards on the toy car affect the distance it will travel? Can you identify the IV and DV? IV = length we pull backwards on the toy car DV = distance it will travel LOOK FOR THESE PHRASES THROUGHOUT THE EXAMPLE
Hypothesis If the length we pull backwards on the toy car is increased, then the distance it will travel will decrease.
Data Table Length pulled backwards on the toy car (IV) 5 cm 7 cm 9 cm Distance it will travel (DV) Trial One Trial Two Trial Three Average
The effect of the length we pull backwards on the toy car on the distance it will travel Distance it will travel (DV) Length we pull backwards on the toy car (IV)
The phrase “length we pull backwards on the toy car” and “distance it will travel” can be seen throughout the entire experiment
Procedure List a 3 -step procedure that would make this a valid (fair) investigation. 1)What am I going to change? (IV) 2)How will I change it? (Include all of the experimental variables from the data chart) 3)What data will I collect? (DV)
Conclusion Write a possible conclusion statement for this investigation. 1) Restate the hypothesis 2)State whether your data supports or does not support the hypothesis 3)Include all of the data (IV and DV) from the graph
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