doing research

The scientific method
  • Start? Research question
  • Guess about the awnser of this question
  • Hyptohesis
  • Run experiments to test it!

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The scientific method
  • Start? Research question
  • Guess about the awnser of this question
  • Hyptohesis
  • Run experiments to test it!

Slide 1 - Diapositive

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Steps in scientific research
1. The problem definition
2. The hypothesis
3. The materials
4. The experiment
5. The results
6. The conclusion

Slide 2 - Diapositive

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Research question
  • Research usually starts with a question: the research question
  • Goal of the research is to answer the question
  • What do all questions have?

Slide 3 - Diapositive

They end with a question mark!
 Hypothesis

Hypothesis: What do you expect the answer to your research question will be?

"If .... (fertilizer is added to cress plants)  then... (the plants will grow two times faster) "


Slide 4 - Diapositive

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Hypothesis
Expected answer to the research question
Often seen formats:
-Cause and effect: If....., then...
- Correlation: ....has a positive effect on...
- Differences: comparing two or more groups

Slide 5 - Diapositive

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2. Make a workplan
How can I get the answer to my research question?
- By viewing or counting something
- By doing an experiment (lab-activity)

Think about....
Method
List of supplies


Slide 6 - Diapositive

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Method
Different types of research:
Describing : collect data by observing
Experimental : testing hypothesis with experiment
- Control group


Slide 7 - Diapositive

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 Experiment
  1. Determine variable to be experimentally changed
  2. Design multiple groups:
    - Vary the variable between the groups
    - Try to include control group (eliminate variable)
    - Keep all other variables constant
  3. Explain what will be measured, when, and how

Slide 8 - Diapositive

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Results and conclusion
  • Displaying results in tables and graphs
  • Drawing conclusion from results
  • Comparing conclusion with hypothesis and analyse differences: hypothesis accepted or rejected
  • Conclusion = the answer to the research question

Slide 9 - Diapositive

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How to make a graph? A few basic rules

  1. Give your graph a title.
  2. Check your data to make sure it is correctly placed into your table.
  3. Choose your axis - independent (x-axis) vs. dependent variable (y-axis)  ex. person (x-axis), time (y-axis)
  4. Label your axis. Always start at zero!
  5. Include your units.

Slide 10 - Diapositive

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Discussion
What went well?
Do you trust your results?
What went wrong?
What could be improved?
What will you do differently next time?

Slide 11 - Diapositive

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Slide 12 - Vidéo

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Slide 13 - Vidéo

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Research question
It is an open question.
You'll answer the question by doing the research.
You only vary one independent variable
You name the  dependent variable.

Slide 14 - Diapositive

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