When you're helping one student, another may be throwing frog guts at their neighbors. Classroom Management - this can be a stressful time for teachers because students can get very excited and forget classroom rules. Students should wash hands even if they wore gloves.
Latex gloves are preferred, but not entirely necessary.
If this happens, use eyewash and liberally flush eye with water. Safety Considerations - students must wear safety goggles, frogs will sometimes spray fluid when you cut them and this fluid can be painful if it enters the eyes. Younger students may need more help than older students. Remember that dissection is a learning process and part of the objectives should be to teach students to become independent learners. When students ask me questions, I require them to at least have a book open to the appropriate page to show me they tried to find the answer on their own.
Net frog dissection worksheet answers manuals#
I have resources such as lab manuals and frog dissection guides laying around the lab. I also encourage my students to try to discover the answers to their questions before asking for help. Lab Resources - The frog dissection gallery is a good resource for teachers and students to review the parts of the frog. I also use virtual frogs before the dissection to give them a clue about the structures they will see inside. Usually the students decide who is going to read / write, and who is going to do the cutting. If I have extra frogs I might allow students to work alone (their choice). Group sizes - I usually put my students in groups of 2, possibly three if I have an odd number of students. The bullfrogs are messier and hard to cut, I have a "lottery" to pick a group to do the bullfrog and then the other students in the class can see what it looks like. Bullfrogs are much larger, but that doesn't mean they are easier to dissect. I have also gotten a single pack of bullfrogs to give one per class. It is not necessary for this lab to get the injected frogs. Obtain grass frogs from a biological supply company. Frog Dissection - Teacher's Guide Dissection Tips and Tricks
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