Interesting book for students of 3rd grade of Primary. Open up, and discover! Big Surprise! includes all of the elements that made Surprise! so popular. The best-selling course is waiting to be re-discovered, now with new resources, more content and even bigger surprises.
ENIAC：The Triumphs and Tragedies of the World's First Computer(Audio+PDF)
The true father of the modern computer was not John von Neumann, as he is generally credited. That honor belongs to the two men, John Mauchly and Presper Eckert, who built the world's first programmable computer: the legendary ENIAC (Electronic Numerical Integrator and Computer).
Mauchly and Eckert developed a revolutionary vision: to make electricity ''think.'' Funded by the US Army, the team they led constructed a behemoth weighing thirty tons with eighteen thousand vacuum tubes and miles of wiring that blazed a trail to the next generation of computers that quickly followed. .
New Language Leader is the most effective course for 21st-century students who are serious about learning English. Designed around topics that stimulate discussion and debate, it has systematic skills work and a thorough study and writing skills syllabus. Unique scenario lessons provide students with the opportunity to practise the language they have learned, helping to prepare them for communication in the real world. It is particularly suited to students involved in or preparing for university study.
Look Wide is a 4-level series for 11 to 15-year-olds with a unique combination of education, culture and language for 21st Century students. Accessibility, flexibility and compliance with curricular requirements are other added key values to make Look Wide the ideal choice for your secondary school students.
