Nice Stuff At Aeon

Nice stuff at Aeon: Since 2012, Aeon has established itself as a unique digital magazine, publishing some of the most profound and provocative thinking on the web. We ask the big questions and find the freshest, most original answers, provided by leading thinkers on science, philosophy, society and the arts.

  1.  Why streaming kids according to ability is a terrible idea.

“The practice of ‘streaming’ or ‘tracking’ involves separating students into classes depending on their diagnosed levels of attainment. At a macro level, it requires the establishment of academically selective schools for the brightest students, and comprehensive schools for the rest. Within schools, it means selecting students into a ‘stream’ of general ability, or ‘sets’ of subject-specific ability. The practice is intuitively appealing to almost every stakeholder.”

. . .

“The current pedagogical paradigm is arguably that of constructivism, which emerged out of the work of the Soviet psychologist Lev Vygotsky. In the 1930s, Vygotsky emphasised the importance of targeting a student’s specific ‘zone of proximal development’ (ZPD). A student’s ZPD is the gap between what they can achieve only with support (teachers, textbooks, worked examples, parents, etc) and what they can achieve independently. The purpose of teaching is to target this gap, to provide and then gradually remove the ‘scaffolding’ of supports until they are autonomous. If we accept this model of developmental learning, it follows that streaming students with similar ZPDs would be an efficient and effective solution. And that forcing everyone on the same hike – regardless of aptitude – would be madness.”

. . .

“While streaming might seem to help teachers to effectively target a student’s ZPD, it can underestimate the importance of peer-to-peer learning. A crucial aspect of constructivist theory is the role of the MKO – ‘more-knowledgeable other’ – in knowledge construction. While teachers are traditionally the MKOs in classrooms, the value of knowledgeable student peers must not go unrecognised either.”

2.  The Amazing Underwater Tape of the Caddis Fly

2019 RYC Junior Awards Picnic

BAP Union

The BAP Union sailed under the Golden Gate Bridge this morning at approximately 7 am.  Yeah, that is the crew standing way up there on those thingies that hold the sails. Oh, they’re called yardarms. Very cool.

PeruvianTallShip_5187-800x551

From Wikipedia

BAP Unión is a training ship of the Peruvian Navy[12] built between 2012–2015 by Shipyard Marine Industrial Services of Peru, known as SIMA.[13] It is a four-masted, steel-hulled, class “A” barque,[14] composed of 38 steel modules.[8] It has a total length (including bowsprit) of 115.50 m (378 ft 11 in);[5][7][8] a beam of 13.50 m (44 ft 3 in);[8] a draft of 6.50 m (21 ft 4 in); an air draft of 53.50 m (175 ft 6 in); a displacement of 3,200 metric tonnes;[5][6] a speed of 12 knots (22 km/h) and a crew of 250 officers and trainees.[8] The ship’s name honors[15] a Peruvian corvette that took part in the first stage of the 1879–1883 War of the Pacific as part of a naval squadron under the command of Miguel Grau, a hero of the Peruvian Navy.[16]

Like other similar ships, Unión has been conceived not only for training purposes, but also to be a sailing ambassador for its home country.[17] Due to its features and dimensions, it has been considered (as of the date it was commissioned) the largest sail vessel in Latin America.[7][18][19]

 

 

Walk to School: Critters

 

Go Giants

Tales of Ol’ Mexico