Cette leçon contient 21 diapositives, avec quiz interactifs et diapositives de texte.
Éléments de cette leçon
1.3 Investigate
Slide 1 - Diapositive
Learning objectives
You will learn how to carry out an investigation step-by-step and how to process the results.
Slide 2 - Diapositive
Steps in carrying out an investigation
Slide 3 - Diapositive
Slide 4 - Diapositive
1. Formulate a research question.
Always one question!
A question that can not be answered with 'yes' or 'no'
Why.. - Are bananas bent?
- Do I have brown hair?
- Is the planet Mars red?
Slide 5 - Diapositive
What's a good research question? 1. Do plants grow better with or without fertilizer and how does light influence the growth? 2. Does compost affect the growth of cress plants? 3. How does adding fertilizer affect the growth of cress plants? *cress = tuinkers, fertilizer = mest
A
1
B
2
C
1 & 3
D
3
Slide 6 - Quiz
Think of a research question!
Slide 7 - Diapositive
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) "
(examples?)
Slide 8 - Diapositive
2. Make a workplan
How can I get the answer to my research question?
- By viewing or counting something
- By doing an experiment
Method
List of supplies
Slide 9 - Diapositive
Workplan
Sample (steekproef)
Quadrat (proefvlak)
Slide 10 - Diapositive
- Counting (how many butterflies are there in my garden?)
Slide 11 - Diapositive
- Experiment: - careful test of a piece of 'reality'
- Lab setup: setup of the materials you use
Slide 12 - Diapositive
3. 3. Collect and process results
The results of an investigation are observations, counts and measurements
DIAGRAMS and TALLY MARKS
1. Line Chart 2. Bar Chart 3. Pie Chart 4. Tally marks
Slide 13 - Diapositive
1. Line chart: How does something increase/decrease?
2. Bar Chart: Numbers
3. Pie chart --> percentages %. Pay attention to the legend
Slide 14 - Diapositive
1. Line chart --> How does something increase/decrease?
Slide 15 - Diapositive
2. Bar Chart --> Numbers
Slide 16 - Diapositive
3. Pie chart --> percentages %. Pay attention to the legend
Slide 17 - Diapositive
4. Tally chart --> Counting
Slide 18 - Diapositive
4. Draw a Conclusion
Does my experiment answer the research question? What can I make out of this?