Science Fair Visit #1- Question and Hypothesis

Experimental Design

Today, students learned about the importance of experimental design. Starting with the steps of the Ruler Drop Experiment which we can use to test reaction times, students came up with their own hypotheses about what variables might affect people’s reaction times. Then they came up with their own experimental plans to test these hypotheses. Students learned that it is important that a good hypothesis makes a claim about the relationship between two variables, and that this relationship is specific and testable in a measurable way. Students also learned that only one variable—the independent variable—can differ between test groups. Finally, we talked about how it is important to have more than one test subject so that an average can be taken.

Students discussed their science fair projects and worked to make sure their hypothesis is both testable and measurable.

 

Diseño Experimental

Hoy los alumnos aprendieron sobre la importancia del diseño experimental. Hoy, los estudiantes aprendieron sobre la importancia del diseño experimental. Primero seguimos los pasos del “Ruler Drop Experiment” (experimento de la caída de la regla), el cual podemos usar para evaluar los tiempos de reacción de cada persona. Los estudiantes presentaron sus propias hipótesis sobre qué variables podrían afectar los tiempos de reacción de las personas; y luego idearon sus propios planes experimentales para probar estas hipótesis. Los estudiantes aprendieron que es importante que una buena hipótesis estipule la relación entre dos variables, y que esta relación sea específica y comprobable de una manera medible. Los estudiantes también aprendieron que solo una variable, la variable independiente, puede diferir entre los grupos de prueba. Finalmente, hablamos sobre la importancia de tener más de un sujeto de prueba para poder tomar un promedio. ¡Pídale a su estudiante que mida sus tiempos de reacción!

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