Measuring reflexes with sexto (by Elena)

Elena tried out the reflexes activity with her sexto class.  It is a really simple way to get the students thinking about how different parts of our bodies communicate and why these communications are not instantanious.  All you need is 30 cm rulers.

 

Usually this activity involves a lot of cheating (especially from competitive boys), but it is fun and it does not really matter.  Get the students to think about doing a "fair test" and sources of error (lots!).  The main focus of the activity is on data collection using a tally chart to measure frequency.  They you can get them to plot a bar chart - if they do it properly you will get a bell curve, but they probably won't which is ok.

 

All data collection and graph drawing us useful to prepare them for secondary school.

Link to instructions and worksheet: Reflexes Activity