This video was originally targeted at especially toddlers, are difficult to learn (autism, Down syndrome, etc.). Wonderful good video in which in addition to conventional visual images used sign language and simple, accompanying each word. This guide can be used as an auxiliary tool for the study of English common kiddies.
In Wheels & Axles, the inhabitants of Mammoth Island decide to use the concept of a wheel and axle to create a feather machine that will help them dry their mammoths. The wheel and axle is a simple machine that makes work easier by changing the effort that force needs to move an object. Aside from their feather wheel, the islanders discover that the wheel and axle is at work all around them -- from waterwheels and windmills to turbines and doorknobs.
In Springs, a visiting inventor observes a family harvesting coconuts on Mammoth Island, using a number of devices called springs. Springs come in two shapes: There are coil springs, and there are bending bars -- called "leaf springs"-- which is what the islanders use to improve their coconut collecting. When a spring is bent, the molecules on one side are pushed together while the molecules on the other side are pulled apart. So once the bending force is removed, the molecules rapidly "spring" back into their natural places. Springs store potential energy when they are stretched or compressed.
Upstream Pre-Intermediate B1 DVD combines factual reports, in the style of TV documentaries, with 2-D or 3-D animation of stories. The language syllabus is based on the relevant coursebooks. The DVD can be used for practice at home or in the classroom, as a component of the course or as a supplement to any course at the same level. Upstream Pre-Intermediate B1 DVD is accompanied by DVD Activity Book to be used with the DVD.
