1. The 20ft x 20ft garden design is based upon the internal geometry of the square. The design will be constructed with 24" scalloped bricks that are 5" high and about 2" thick. Bricks can be used to form the perimeter, but I have found that railroad ties help reduce the intrusion of unwanted flora. The bricks are the backbone of the design, but they can also be rearranged into other designs by teachers and/or students. These designs can be worked out in the classroom and then applied outdoors.

2. Corn and beans will be the primary crop. In prehistoric America, this pair was usually grown together or consecutively because, as corn depletes nitrogen from the soil, beans replace it through their natural chemical interaction with the soil. Old corn stalks also contain some nitrogen and these can be broken up an returned to the soil as well.

Sunflowers are planned for the central octagonal area in circular bricks; four smaller rings can represent smaller patches of sunflowers or circular stepping stones. Wild flowers will be spread about in areas outside the corn-bean patch. Lava (vesicular basalt gravels) and the central area will serve to access the corn bean patch for watering and cultivation. A three-inch base of sand will underlie the lava and dolomite; chicken mesh ‹ preferably two layers between sand, acts as an anti-gopher measure.

Students will gain a practical appreciation of symbiotic concepts such as theory and practice, blueprints and physical construction, beauty and growth.

CARDINAL DIRECTIONS
The quartered circle and the square are the probable origins of the directional compass along with the visual picture of the four cardinal directions. The cardinal directions are highlighted with bright white dolomite gravels. The other four directions (NE, NW, SW, SE) will be highlighted by the corn-bean patches. The red lava was chosen to contrast with the dolomite, both in color and rock type. Sunflowers will take up the center point. The four corners of the inner octagon are oriented to the cardinal directions; these can be reserved for stepping stones or become sunflower areas.

GEOLOGY
The three fundamental types of rock will be represented:

• Sedimentary (sand);
  
• Igneous (vesicular basalt);
  
• Metamorphic (Dolomite).
  

• IGNEOUS ROCKS ‹ formed by the heat that causes volcanoes, dikes, etc.
  
• METAMORPHIC ROCKS ‹ formed by great pressures ( i.e. tectonic) or chemical reactions.
  
• SEDIMENTARY ROCKS ‹ formed by erosion of other rocks and re-cemented where the sediments are redeposited, such as old beaches and riverine deposits.