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Discovery Channel. The harmful mistakes of sex education in school. PM warns Putin in Ukraine showdown Sonia Elks, Francis Elliott in Brisbane, Bernard Lagan in Sydney Last updated at 10:58AM, November 15 2014 David Cameron warned Vladimir Putin that Russia faces increasing isolation and further sanctions if it continues to destabilise Ukraine by intervening in the crisis.

The harmful mistakes of sex education in school

15 Ideas for Using Digital Cameras in Science. 1.

15 Ideas for Using Digital Cameras in Science

Stop motion movies and flip books. By taking multiple pictures, students would create a photo flip book or stop motion movie to demonstrate, as accurately as possible, a particular science concept or process.