Make A Clinometer

ACTIVITY: MAKE A CLINOMETER and Other Means of Measuring Heights

PROCEDURES:
1. Access the site: Clinometers (When You Can't Climb To The Heights!)
2. Students work in quads of two groups of two students. Each two-some will make a clinometer.

Both groups will measure the height of the same tree.
The two groups of each quad will compare their measurements of height and remeasure as needed to attain consensus.

3. Students will post on a wall chart or verbally share their findings with the class.
4. After the neighborhood walk, each student will include in his/her paragraph an explanation of the procedure for using a clinometer to measure the height of a tree.

RESOURCES:
Clinometers (When You Can't Climb To The Heights!) at http://district.wachusett-rhs.wrsd.k12.ma.us/pnt/CLINOMETERS.

Height Measurement of Single Trees at
http://online.anu.edu.au/Forestry/mensuration/HEIGHT.HTM

Measuring the Volume of Standing Trees with a Scale Stick at
http://www.ces.ncsu.edu/nreos/forest/woodland/won-05.html

Tree Measurements in Forestry by Digital Camera at
http://www.lce.hut.fi/publications/annualrep/node10.html

MATERIALS:
Clinometer: Protractor photocopy (attached in URL), oaktag, glue, tape, tack or pin, straw, 20 cm. length of kite string, steel washer or weight with hole, meter stick or 50 ft. tape.