This virtual manipulative will help the students to develop some familiarity with the currency, both coins and bills. Three different features of the manipulative will provide practice to the students: Make a dollar gives students practice in the equivalence of different sets of coins; How much money asks the student to total the value of the displayed bills and coins; Pay exact amount could be used to model either payment or giving change.

Students get a small glimpse into the chemical interactions at the synaptic level that cause the drug user to feel 'high'. This presentation depicts how drugs interact with dopamine neurotransmitters in the brain because it focuses on the brain's reward pathway.

Students have the opportunity to click on and read about various organisms and finally hypothesize if the organsim uses sexual or asexual reproduction. After briefly explaining sexual and asexual reproduction, this interactive resource allows users to explore different organisms.

Students assume the role of "space doctor" and use gene therapy techniques to treat three ailing aliens who come into the clinic with genetic disorders. Students are provided links to review material that they can access before and during the game to help them choose the correct target tissue and gene delivery vector for each patient.

Students will learn how water moves
through a watershed, the pollutants that can enter the water system from different land use activities and ways people can prevent water pollution.

Students will evaluate the quality of a "water sample" (a bag of Skittles), graph their results, and form a hypothesis about the land use near the
location their sample was collected.