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Velocity_v2

Designed and produced by the French CoI

The Velocity_v2 c-book, designed by six CoI members (researchers in mathematics education, teacher educators, mathematics teachers and an artist), is composed of five activities, as follows:

The tunnel problem. This activity is designed to introduce the concept of velocity to the students in a new fancy way. It starts by inviting students to watch three videos of a car crossing the tunnel of Croix-Rousse with different speeds and stimulates students’ attention by the question “which car would get a fine as it breaks the speed limit on the tunnel”. The students are provided with different digital tools (EpsilonWriter, Cinderella, GeoGebra widgets, and EpsilonChat) and are guided through the activity pages to come up with an answer to the question.

Particles Movement. This activity talks about the relationship between time t and displacement s(t) as a function of t using different representations. It also develops the idea further by presenting the concept of velocity through the movement of particles. The widgets used in this activity are Cinderella, Graph tool, and Answer Box.
Movement Control. This activity describes the tachograph device as an automatic recorder of a vehicle behavior during the day in terms of time and speed. Three pages are prepared in a sophisticated way and powered by GeoGebra widget to model the speed profile of a recorded tachograph disc for a vehicle.

Average speed activity starts by introducing the meaning of average velocity by presenting different speeds in different duration. The tasks of this activity deeply go to expressing the meaning of average velocity graphically as well as expressing the relationship between the average velocity and the area.

Acceleration activity reconstructs the meaning of the concept of acceleration in an experimental way. It reproduces Galileo’s experiment on an inclined plane using the power of digital tools. GeoGebra widget is used to model the acceleration concept.

velocity v2

 Available at: http://2.mc2dme.appspot.com/dwo/dwo.jsp?profile=78&language=en&courseViewNr=5732225890910208

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