Friday, January 20, 2017
Hot Ice in 3-D
An example of GRC in a my chemistry classroom ... there are videos embedded in this slideshow that show the lesson in progress and I reflect on the lesson at the end... included also are some journal entries from my students.
Wednesday, January 18, 2017
Making Sense out of pH
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| https://upload.wikimedia.org/wikipedia/commons/1/13/Phoenicopterus_minor_-Lake_Bogoria%2C_Kenya-8a.jpg |
Lake Natron, Tanzania, Africa
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| https://oncirculation.files.wordpress.com/2013/11/petrorrific2.png |
Making Sense Out of pH
Background Information:
Lake Natron, Tanzania has a pH of between 9 and 10 as a result of water from hot springs entering the lake. There is no outlet, water simply evaporates increasing the salt concentration of the lake. Acid rain does lower the pH of the lake, but in dry years the pH remains high. The red color of the water comes from microorganisms in the lake. Few other organisms are able to survive in these harsh conditions. Flamingos however, can withstand the high pH and use the lake as a breeding ground.
Student Directions: Use the Animation Below:
Group Performance:
- Investigate how adding water to the container of various liquids changes the pH of the liquids.
- Formulate questions and investigate explanations for the causes of the patterns you see.
- Develop evidence to support your explanations.
Individual Performance: (SSW)
- Write in your journal your explanation of this phenomenon. Include evidence to support your explanation for the cause of the change in pH.
Sunday, January 8, 2017
Engaging Students with Whiteboards - Earth Science
Earth and Space Science 5E Lesson:
What do students already know about weathering and erosion? (HS - ESS2-5)
A sort and classify activity is the perfect way to introduce students to using group whiteboards... lots of engagement and collaboration under the direction of guidance tasks provided by the teacher.
What do students already know about weathering and erosion? (HS - ESS2-5)
A sort and classify activity is the perfect way to introduce students to using group whiteboards... lots of engagement and collaboration under the direction of guidance tasks provided by the teacher.
This particular activity comes from the New Visions Earth Science Curriculum, which has a lot of great 5E learning activities.
Image source: https://s-media-cache-ak0.pinimg.com/236x/b7/8c/43/b78c436d12d7c61576e6f8fade0b626b.jpg
More about the 5E Model of Inquiry: https://bscs.org/bscs-5e-instructional-model
More about New Visions for Public Schools - Curriculum and Instruction Projects
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