Toy companies like Anatex and Imaginarium --a division of Toys R Us Holdings--still sell abaci too, since they're often used to teach mathematics to kids.

FORBES

Toy companies like Anatex and Imaginarium --a division of Toys R Us Holdings (nyse: TOY - news - people )--still sell abaci too, since they're often used to teach mathematics to kids.

FORBES: No. 2 The Abacus

To teach cleaners and nightwatchmen advanced mathematics (such as adding up without a calculator) seemed pretty wasteful, and apt to breed discontent.

ECONOMIST: Education and the wealth of nations

And they teach English and computer science and ordinary science subjects and mathematics as well.

NPR: Pakistan to Expel Foreign Students at Religious Schools

Dominated at the moment by courses in mathematics, computer science, and engineering, MOOCs may be ill-equipped to teach students to write and express themselves or to provide the hands-on experience of working in a lab.

FORBES: MOOCs: A College Education Online?