20.12.2012 Views

Teaching With the Brain in Mind

Teaching With the Brain in Mind

Teaching With the Brain in Mind

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>Teach<strong>in</strong>g</strong> with <strong>the</strong> <strong>Bra<strong>in</strong></strong> <strong>in</strong> M<strong>in</strong>d<br />

direct phonics <strong>in</strong>struction more bra<strong>in</strong> compatible?<br />

Research suggests <strong>the</strong>re is value <strong>in</strong> each; a comb<strong>in</strong>ation<br />

is best.<br />

The Sudbury Valley School <strong>in</strong> Fram<strong>in</strong>gham,<br />

Massachusetts, is an example of a school that<br />

understands how read<strong>in</strong>g read<strong>in</strong>ess and <strong>the</strong> differences<br />

<strong>in</strong> learners’ bra<strong>in</strong>s can coexist. Their K-12<br />

program does not force read<strong>in</strong>g on any student.<br />

They believe that youngsters are already exposed<br />

to thousands of vocabulary words <strong>in</strong> <strong>the</strong> world.<br />

Instead of teach<strong>in</strong>g <strong>the</strong>m read<strong>in</strong>g, <strong>the</strong> school simply<br />

lets students choose to do it when <strong>the</strong>y are<br />

ready. As a result, some children read at age 5, o<strong>the</strong>rs<br />

at 6, some as late as 10. But accord<strong>in</strong>g to <strong>the</strong><br />

school’s founder, Daniel Greenberg, <strong>the</strong> school has<br />

100 percent truly functional, literate graduates.<br />

There are no read<strong>in</strong>g disorders or dyslexia, and<br />

everyone likes to read. It’s an approach that says,<br />

“Wait until <strong>the</strong> bra<strong>in</strong>’s ready to read, <strong>the</strong>n you can’t<br />

stop it!” (Greenberg 1991).<br />

Sweet Dreams<br />

Teachers often compla<strong>in</strong> about kids fall<strong>in</strong>g asleep <strong>in</strong><br />

school. Is it <strong>the</strong> parent’s fault or <strong>the</strong> school’s? Studies<br />

ask<strong>in</strong>g why kids seem to fall asleep so often <strong>in</strong><br />

middle and high school classes have now turned to<br />

biology. Researchers had already looked at two possible<br />

culprits that, <strong>in</strong> <strong>the</strong> end, didn’t seem to matter<br />

much: part-time work and go<strong>in</strong>g to bed late. The<br />

answer wasn’t social pressure, ei<strong>the</strong>r. It was puberty.<br />

Sleep is regulated by many chemicals, <strong>in</strong>clud<strong>in</strong>g<br />

am<strong>in</strong>es, glutocorticoids, and oleamide, a<br />

drows<strong>in</strong>ess-<strong>in</strong>duc<strong>in</strong>g chemical substance, says Dale<br />

Boger, a molecular biologist at Scripps Research<br />

Institute <strong>in</strong> La Jolla, California. A delayed accumulation<br />

of oleamide means a teen’s natural sleep<br />

clock generates a natural bedtime closer to midnight<br />

with a wak<strong>in</strong>g time closer to 8 a.m. This<br />

24<br />

change is believed to be stimulated by <strong>the</strong> hormonal<br />

changes of puberty. Sleep expert Mary<br />

Carskadon, formerly of Brown University, confirms<br />

that most teenagers are affected by this critical<br />

biological change <strong>in</strong> <strong>the</strong>ir <strong>in</strong>ternal sleep clocks (<strong>in</strong><br />

Viadero 1995). “We have kids so sleep-deprived,<br />

it’s almost as if <strong>the</strong>y’re drugged. Educators like<br />

myself are teach<strong>in</strong>g walk<strong>in</strong>g zombies,” says Cornell<br />

University sleep disorder expert James Maas (<strong>in</strong><br />

L. Richardson 1996, p. E-1). Sleep experts discovered<br />

that teens simply couldn’t fall asleep early, as<br />

<strong>the</strong>ir frustrated parents suggested. Carskadon calls<br />

it a “delayed phase preference,” and <strong>the</strong> body’s<br />

chang<strong>in</strong>g chemistry is <strong>the</strong> culprit. While many<br />

researchers are unsure of <strong>the</strong> direct cause, <strong>the</strong><br />

results are easy to see. They should be able to get<br />

to sleep earlier, but <strong>the</strong>y can’t. It’s like <strong>the</strong> biological<br />

clock <strong>in</strong>jected amphetam<strong>in</strong>es <strong>in</strong>to <strong>the</strong> bra<strong>in</strong>.<br />

Milton Erman, professor at <strong>the</strong> University of California<br />

<strong>in</strong> San Diego, says, “High school kids are<br />

grossly sleep deprived. . . . [I]t makes very little<br />

scientific sense to make <strong>the</strong>se kids function at<br />

<strong>the</strong>se very early hours” (<strong>in</strong> L. Richardson 1996,<br />

p. E-1). Richard Allen of <strong>the</strong> Sleep Disorder Center<br />

at Johns Hopk<strong>in</strong>s University studied two groups of<br />

teens. The later risers performed better academically.<br />

One started school at 7:30 a.m., <strong>the</strong> o<strong>the</strong>r at<br />

9:30 a.m.<br />

Researchers have discovered that at night, <strong>the</strong><br />

first few m<strong>in</strong>utes and <strong>the</strong> last few m<strong>in</strong>utes of our<br />

four-part sleep cycle take us <strong>in</strong>to a <strong>the</strong>ta state.<br />

That’s our own “twilight zone,” when we are half<br />

awake and half asleep. <strong>Bra<strong>in</strong></strong> wave cycles here are<br />

about 4–7 per m<strong>in</strong>ute as we drift randomly <strong>in</strong> and<br />

out of sleep. Ord<strong>in</strong>arily, our wak<strong>in</strong>g hours are spent<br />

<strong>in</strong> alpha and beta time, from 8–25 cycles per second.<br />

Dur<strong>in</strong>g <strong>the</strong>ta state, we can be awakened easily<br />

and often rehash <strong>the</strong> day or th<strong>in</strong>k of th<strong>in</strong>gs we have

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!