Episodio 23: Feliz centenario, motos de nieve
The first machine for traveling over the snow was invented in 1922. Since that time, snowmobiles have become a popular recreational vehicle. In addition to the fun and frolic, there are serious environmental and safety considerations with their use.
Join us as we take a closer look at 100 years with the snowmobile.
Men posing near an early snowmobile, c.1920 (P061457)
Elias Motor Toboggan used by the NYS Dept. of Conservation, 1946-1960.(1973.020.0002)
Conexión con el plan de estudios
Lee en voz alta: Los alumnos pueden seguir la conversación mientras la escuchan. Haga clic en AQUÍ para descargar una copia de la transcripción.
Vocabulario: Explorar nuevas palabras. Los alumnos escuchan el vocabulario de alto nivel en su contexto. Pídales que identifiquen la definición después. Haga clic en AQUÍ para la página de vocabulario.
Ingeniería: Encourage students to use design and problem-solving skills by using everyday items to create a ‘new’ machine. A few sites to get ideas:
Preguntas
Es posible que los alumnos de cursos superiores quieran profundizar en algunos temas.
- Snowmobiles and snowmobiling are good topics for debate. What are the positive aspects of the sport? What are the negatives? Show evidence to support your stance.
- Why did J. Armand Bombardier change his snowmobile design from propeller driven to a track system? Was it only for safety? Or are there other reasons based on science and engineering design?
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