K-12 Teaching and Learning From the UNC School of Education

LEARN NC was a program of the University of North Carolina at Chapel Hill School of Education from 1997 – 2013. It provided lesson plans, professional development, and innovative web resources to support teachers, build community, and improve K-12 education in North Carolina. Learn NC is no longer supported by the School of Education – this is a historical archive of their website.

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The “knees” of Cypress
The “knees” of Cypress
Format: image/photograph
The “knees” of cypress
In Wetlands of the coastal plains, page 11
The other major adaptations of cypress and gums to flooded soils is their characteristic root extensions called “knees” shown in Figures 10 and 11. These structures are gas exchange systems within which oxygen from the air is conducted along the...
By Dirk Frankenberg.
The “Old Fire”
The “Old Fire”
Smoke billows from the “Old Fire,” a wildfire that raged in the San Bernardino Mountains of California in the fall of 2003. In this view from a distant peak, gray-white smoke rises in great clouds from green mountains, partly obscuring a sky with...
Format: image/photograph
5 Year Intervals
5 Year Intervals
Format: image/photograph
After the controlled burn
After the controlled burn
Format: image/photograph
Agate House in Petrified Forest National Park, AZ
Agate House in Petrified Forest National Park, AZ
The Agate House in Petrified Forest National Park, Arizona. Archeologists believe the original building was constructed almost ten centuries ago between A.D. 1050 and 1300. The ancient Puebloan people in the area used petrified wood sealed with mud mortar...
Format: image/photograph
American sycamore
American sycamore
Fruit of the American sycamore tree. The American sycamore, (Platanus occidentalis), is a giant hardwood tree native to the eastern United States. Sycamores are easily identifiable by the odd mottled patterns on their trunks, a result...
Format: image/photograph
Awed visitors in Mariposa Grove, Yosemite National Park, CA
Awed visitors in Mariposa Grove, Yosemite National Park, CA
Visitors awed at giant sequoias in Mariposa Grove, Yosemite National Park, California. Mariposa Grove is home to hundreds of giant sequoias. While not the world's tallest tree, they are often considered for their sheer volume to be the largest living things...
Format: image/photograph
Awed visitors on the road in Mariposa Grove, Yosemite National Park, CA
Awed visitors on the road in Mariposa Grove, Yosemite National Park, CA
Visitors awed at giant sequoias in Mariposa Grove, Yosemite National Park, California. Mariposa Grove is home to hundreds of giant sequoias. While not the world's tallest trees, they are often considered by their sheer volume to be the largest living things...
Format: image/photograph
Back-Barrier Salt Marsh
Back-Barrier Salt Marsh
Format: image/photograph
The bad lands at Petrified Forest National Park, AZ
The bad lands at Petrified Forest National Park, AZ
Eroded rock formations in the bad lands at Petrified Forest National Park, Arizona. Deposition, uplift, and erosion have created a diverse landscape over millions of years. Many formations, such as mesas and buttes, are formed when a protective cap of sandstone...
Format: image/photograph
Bad lands in Petrified Forest National Park, AZ
Bad lands in Petrified Forest National Park, AZ
The sculpted ridges of bad lands in Petrified Forest National Park, Arizona. The formations show that thousands of years of mineral deposition have created colorful stripes in the surface of the rock. Deposition, uplift, and erosion have created a diverse...
Format: image/photograph
Bethlehem, Pennsylvania
Bethlehem, Pennsylvania
Photograph of trees and 18th-century buildings in Bethlehem, Pennsylvania. Bethlehem was founded by members of the Moravian church on December 24, 1741.
Format: image/photograph
Black cherry blossom
Black cherry blossom
Blossoms of the black cherry tree, Prunus serotina. Black cherry trees are native to eastern North America and produce a small, somewhat bitter fruit.
Format: image/photograph
A blackwater river from sea to source: The White Oak River transect
A “virtual field trip” up the White Oak River in southeastern North Carolina, with discussion of how local ecology changes along the way due to decreasing salinity.
Format: slideshow (multiple pages)
Bottomland hardwood forest inland from the swamp forest
Bottomland hardwood forest inland from the swamp forest
Format: image/photograph
Bridge to Birethanti
Bridge to Birethanti
Tourist crossing the suspension bridge into the bazaar at Birethanti. The bazaar is a center of trade and commerce in the Annapurna region of Nepal.
Format: image/photograph
Broken stone doorway at Ta Prohm site at Angkor
Broken stone doorway at Ta Prohm site at Angkor
The massive left stone post of this doorway at Ta Prohm has broken and dropped to the ground. The top and right side of the stone door frame remain wedged in place, allowing people to pass through. Ta Prohm was built as a double-moated, royal monastery during...
Format: image/photograph
Cacao pod in tree
Cacao pod in tree
On a cacao plantation in Barlovento, Venezuela, a ripening cacao pod hangs in the leafy branches of a cacao tree. The tree -- Thebroma Cacao -- is native to the tropical regions of Central and South America. The seeds of the cacao pod...
Format: image/photograph
Cape Fear River
Cape Fear River
A view of the Cape Fear River, near Wilmington.
Format: image/photograph