Fold right side to form a smaller triangle from the rhombus.. The final challenge is to make a triangular prism from the three small triangles created from the trapezoid.
When the folds are returned to the original circle shape there will be many opportunities to identify shapes, types of lines, and measurement opportunities of angles.
Making Connections Using CIRCLES of TIME , DEGREES, AND DECIMALS
The purpose of the next activity is to make a manipulative connection to the relationship between parts (fractions) of time, percents, and degrees of a circle. This is cross curricular in that it will involve writing short scenarios connecting the three aspects of time, percents, and degrees with fraction pieces.
Provide students with circle fractions and rings marked by minutes, degrees and decimal measurements.
Read students the sample story and as you read they are to sketch or use fraction circle pieces in an appropriate amount to fill in a "story circle" We use one hour of life.
Mrs. Green's Story:
This morning I began the day as usual
hitting the snooze button for ten minutes.
With a groan, I rose and spent 1/4 of an
hour doing my routine of teeth, face,
hair and clothes My breakfast was next
and that took 50% of my hour routine.
I love to daydream
while I watch the eggs get beaten
changing from one form to another. I savor
every bite of my scambled eggs and watch
time slip away on the clock. Since I have just a few
moments left I rush to the busstop, realizing that
I left my homework on the table! Do I have time
to go back home? THAT IS YOUR QUESTION TO SOLVE!
Use your fraction knowledge, and make a circle or pie graph to show your answers.
Fill in the conversion table. Next Find the totals of each to help you
make good mathematical statements.
