Syindication
Commonwealth of Virginia
The “Flexbook”
Published in creativecommons.org - 121 days 3 hours ago
We’ve all heard of the textbook. Some of us have read one or two in school. Others of us have stared blankly at pages filled with outdated information. Still, others of us are more resourceful and have used the bulky things to prop up rickety ends of tables. But all of us have had to carry one around at some point, which may or may not be the reason why our shoulders are slightly lower on the right. Well, according to the CK-12 foundation,
