Advantages and disadvantages of survey methods: questionnaires and interviews.
Design and conduct surveys and analyze and interpret the results.
A free CK-12 account is required to view all materials.
This video explains the different types of study designs used in statistics. [9:51]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Survey Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media for grades k-12.
What is groundwater? Where does it fit into the water cycle? With the aid of a simple illustration, one is able to learn more about this topic. Includes link to a true-and-false quiz.
USGS provides lesson plans, activities, maps, podcasts, online lectures, videos and animations, and lots more. Covers all grade levels.
Visit the U.S. Geological Survey's website for a wide variety of information on water. Content includes data on water quality, water use, acid rain, among others; publications; information on water resource programs; maps; information on ground water and surface water; water information by state; and much more.