Frog Dissection

In today’s lesson we dissected frogs. For most students, it was the first real dissection they had ever experienced. We began by examining the external structures of the frog and talked about some of the specialized traits they have, such as an extra eyelid. By examining the interior of the mouth, students were able to see how the frog’s unique tongue functions to catch food. We also found out that frogs have two kinds of teeth in the upper jaw and none at all in their lower jaw.

Next we moved on to the interior organs. Students carefully opened up the body cavity to reveal the organs. They examined each organ and learned its function. Most of the organs work much the same in humans and in frogs. By learning about frog anatomy, we can learn more about ourselves.

Ask your student which structure they found to be the most interesting in the frogs!

Disección de ranas

En la clase de hoy disecamos ranas. Para la mayoría de los estudiantes, ésta fue su primera experiencia disecando un animal de verdad. Comenzamos examinando las estructuras externas de la rana y conversamos sobre los rasgos especializados que éstas poseen; por ejemplo, tienen un párpado extra. Luego examinamos el interior de la boca y así los estudiantes pudieron apreciar cómo funciona la lengua de la rana cuando atrapar su comida. También aprendimos que las ranas poseen dos tipos de dientes en la mandíbula superior y que no tienen dientes en la mandíbula inferior.

Luego examinamos los órganos internos. Los estudiantes abrieron de manera muy cuidadosa la cavidad ventral para poder acceder a los órganos. Examinaron cada uno de los órganos y estudiaron sus funciones. La mayoría de los órganos de la rana funcionan de forma similar a los órganos humanos, por lo tanto, al aprender sobre la anatomía de la rana también aprendimos sobre nuestra anatomía.

Pregúntele su hija o hijo qué estructura de la rana le pareció la más interesante

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Lauren Koppel

Lauren earned a Bachelor’s degree with a double major of Biology and Psychology from Clark University, and a Master of Education from the Harvard Graduate School of Education. During her undergraduate years, she worked in a evolutionary neurobiology lab that studied the neural development of annelids (marine worms), with a focus on the sox family of genes. Lauren loves learning about how the world works (including everything from biology to chemistry to engineering), and is passionate about sharing that knowledge and enthusiasm with others. In the past, she has interned at the Museum of Science, where she educated learners of all ages through hands-on activities, games, and experiments. Other science education organizations with which Lauren has worked include The People’s Science, EurekaFest, and Eureka! of Girls Inc. of Worcester. Currently she lives in Boston, where devotes her free time to playing Quidditch, reading sci-fi novels, playing her ukulele, and enjoying all the culinary delights the city has to offer.

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