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Math activities proven successful with learning disabled students are presented, along with a description of factors that influence struggling special needs students. "

"Origami Paper airplane/Dart It is hard to decide if this is a airplane or dart. It is very dense at the front and if thrown hard will fly far. This is a hard exercise in folding and also for me in writing and drawing instructions."

"The D-Dalus (a play on Daedalus from Greek mythology) is neither fixed wing or rotor craft and uses four, mechanically-linked, contra-rotating cylindrical turbines, each running at the same 2200 rpm, for its propulsion. The key to the D-Dalus' extreme maneuverability is the facility to alter the angle of the blades (using servos) to vector the forces, meaning that the thrust can be delivered in your choice of 360 degrees around any of the three axes. Hence D-Dalus can launch vertically, hover perfectly still and move in any direction, and that's just the start of the story."