Monday, April 30, 2012

Test and Essay Items Rationale

Test Question #1
They goal of this test question is to have students distinguish between natural and man-made greenhouse gases. Rather than recalling and listing various gases that contribute to the increasing rate of global warming, I choose to provide students with a list of common gases and have them distinguish between the two. I felt that this task required students to examine how the gases were being used/produced in order to distinguish if they were man-made or natural gases.
Test Question # 2
For this question, I wanted students to use their acquired knowledge and offer suggestions of how we as individuals can help slow the rate of global warming. I felt that an essay format was best as it would provide evidence of student knowledge, thinking ability, and attitude towards the topic. The essay format also allows students to provide more than one right answer and think outside the box.
Test Question # 3
Students should be aware that the greenhouse effect and global warming are two separate things. (the greenhouse effect keeps the planet in a state that allows life to flourish; global warming creates climate change which can adversely affect the planet). To receive maximum credit students must comprehend the concept of the greenhouse effect and understand that how it correlates to global warming. By asking this test question in a restricted essay format, students are required to focus on a specific topic while recalling pertinent information.

Test Question # 4
For this test question, students will be asked to match vocabulary terms to their definitions. I tried to create more definitions than vocabulary words in order to make it a bit more difficult for students.

Monday, April 23, 2012

Global Warming and the Greenhouse Effect

Given a fifth grade science lesson on global warming and the greenhouse effect the student will....

· distinguish between natural and man-made greenhouse gases.

· discuss ways in which individuals can help slow the rate of global warming.

· explain the difference between global warming and the greenhouse effect.

· define six key vocabulary words with 100% accuracy.

Test Questions
Objective: Distinguish between natural and man-made greenhouse gases.
Test Question #1: Place an N next to natural greenhouse gases and an M next to man-made greenhouse gases.


_____Burning of fossil fuels
_____Cutting down CO2 rich forests
_____Methane released into the air by termites
_____Volcanoes spewing CO2 into the air
_____Bacteria in oceans producing nitrous oxide
_____Methane released from landfills
_____Burning of gasoline to drive cars and trucks
_____Natural gas production releasing methane
_____Livestock chewing and releasing CO2
_____Animal manure releasing nitrous oxide



Objective: Discuss ways in which individuals can help slow the rate of global warming.

Test Question #2: Think about how human activities affect global warming. Write a one-page letter to a friend that lists at least five ways in which they can help slow the rate of global warming. Be sure to provide details about how your suggestions will effectively help slow the rate of global warming. Spelling, punctuation, and grammar will be counted toward you grade.



Objective: Explain the difference between global warming and the greenhouse effect.
Test Question #3: Identify the cause-and effect relationship that the greenhouse effect and global warming share. Your response should include a description of the greenhouse effect and how certain factors can lead to global warming.

Objective: Define six key vocabulary words with 100% accuracy.
Test Question #4: Match the following vocabulary words in column A to their definitions in column B.