1. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Examples of sequences for la main à la pâte

2. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - 1. Order - Teacher’s question - Reminder of old question from students - Experiment suggested by teacher - Problematic situation

3. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - 2. Collection of students’ hypothesis - - via a questionnaire or diagrams

4. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - 3. Analysis and discussion of students’ ideas - On the board - Class and compare students’ ideas in order to highlight the contradictions.  Setting up of the « problem » - « How do we find out where the truth is? » - « What are we trying to know »

5. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - 4. Setting up protocols to test the hypothesis - - organising of groups to test the hypothesis (each hypothesis must be tested by at least two different groups) - Students write up a protocol (materials, sequence) - Students will forecast result - (I think that I will achieve this which will mean that. Otherwise… )

6. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - 5. Experiments - Students first carry the protocol which they had planned. - They then modify this protocol so that it is adequate. - They then write up a summary of their experiment - ( what is the final protocol? What did we try? Why did we modify the protocol and how ?).

7. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - It’s working….it’s not working ! An experiment which doesn’t work is an experiment whose result does not match what was forecasted. In reality the hypothesis has been tested as we have a result, whatever it may be, therefore it works every time!

8. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - 6. Writing up the experiments - - results: hypothesis by hypothesis - The different groups of students explain the different hypothesis - For the groups who have tested the same hypothesis - Do they get the same result ? (otherwise discussion of validity of protocol and return to 4. Same applies if no hypothesis has been validated)

9. Nicolas Poussielgue - Exemple de déroulement de séquences "la main à la pâte" Sequence - 7. Summary for the class - What did we learn ? - List of valid and non valid hypothesis - Description of protocols used - Description of « why a protocol has not been efficient and how to remedy this » - Conclusion in relationship with the problem at the start. - What is left to learn ? - Hypothesis that remained to be tested, - The new questions and hypothesis that have arisen - The link with « institutionalised knowledge » (book)