Eyes on You!

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Objective

Students will show their current understanding of the function of the eye.

Big Idea

Students are given a opportunity to show their understanding of the function of the eye. This is a formative assessment and will aide in planning for further investigations.

RAP - Review and Preview

5 minutes

I call students to the gathering area and we review the dissection we have done over the last 2 lessons. We review the different parts of the eye again so students have them fresh in their minds as we make a 2D model of the eye today.

Guided Assessment

20 minutes

I show students the parts of the eye flap book that we will be assembling today. We will label the parts of the eye as we assemble the book. I ask students to work independently on this activity as I am using it as a formative assessment, to see how students are doing on this important concept.

I hand students the pre-assembled flap book. I have materials laid out on the science table. Students come and gather one of each material and take them back to their workspaces. Students will decide which material should be placed where, as I walk the class through the process.

I tell students to look at the flap book. Each page of the book is designed to show the different layers of the eye, so they should use all pages during this modeling process. I tell students that they do not have to glue the parts immediately, but can place them as I ask, check them for accuracy, and then glue at the end.

I say to students

I expect to see

Place the cornea on the eye

Students place the clear plastic sheet over the top of the eye.

Place the iris on the eye

Students should place the colored circle under the lens.

Place the pupil on the eye

Students should place the black circle on the center of the iris.

Place the lens on the eye

Students should place the cream colored oval on the second page of the eye book to show the lens is under the first layer.

Place the retina on the eye

Students should place the retina on the third page of the eye book to show that it is behind the lens.

Show how the retina sees objects

Students should draw an upside down figure in the retina.

Place the optic nerve on the eye

Students should attach the optic nerve to the last page of the eye book.

I ask students to turn their eyes in to me, after they have labeled each part and written a bullet point about how each structure works.

 

Assessment

2 minutes

I use my exemplar as the rubric for the activity. I look for correct placement of each part of the eye. Correct labeling (spelling doesn't count since I did not give them the terms, and this was an assessment) is important. I also look for a simple explanation of the function of each part of the eye.

This lesson helps me plan the next few lessons in the unit. Do students understand the function of the eye sufficiently to move forward to eye adaptations, or do they need more instruction on this topic?