Wednesday, 25 April 2012

Transparent, Translucent and Opaque

comparing degrees of transparency of materials
This is a poster I made when I was teaching about properties of light. It shows a solid object (the yellow string of yarn) being placed behind different types of paper (transparent, translucent, and opaque). I cut out rectangular samples from different paper sources: clear cellophane packaging for transparent paper, waxed paper for translucent paper, and colored card stock paper for opaque paper. 

Here's a quick activity that students can do to compare the degree of transparency among these different types of paper: Use three similar flashlights, a rubber-band to secure each sheet of paper over the face of the flashlight. Turn of the classroom lights to get the room dark enough, then flick on the flash lights simultaneously to shine at the wall. Your students can try this with other types of paper like tissue paper, transparency paper, recycled paper, etc, and sort these types of paper on in a table or sort them in a continuum that goes from transparent to opaque. 

Have fun!

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As a Caribbean primary school teacher, I share my unique classroom with the world through this blog. Readers step into my class through the pictures, articles and classroom samples of games and lessons used in my class. I have been teaching since 2005 at the std. 4 primary level in Trinidad and Tobago. I am particularly interested in sharing my own personal lesson plans, tests and activities. Teachers need to share ideas and support each other because in doing so, we help to educate our students and develop ourselves as teachers. Technology is ever evolving and we as teachers should get on board with it, collaborate and keep up to date with this new age that we live in. Our students belong to this technological era and we must embrace opportunities to learn from each other in this global community. I also love to express my creativity in the classroom. I am a bit of a craftster . So I'm always cutting, gluing or making something... a game, a chart, a learning center, etc. So, teachers and parents, feel free to stop by and see what's new at Nyla's Crafty Teaching!