Project Cornerstone Visits Students at Jean Farb Middle School for In-Class Activities

Written by Alyssa Burley.

Project Cornerstone's Crystal Howard and Alyssa Burley visited Ms. Huntington's advanced eight grade science class at Jean Farb Middle School on Wednesday, March 25, 2015.

After a brief presentation about construction aggregates, the class analyzed two samples of aggregates.  One sample included river sand, while the other had beach sand.  Using a sieve (i.e., a cylinder with a series of screens of varying hole sizes), the students tested the two sand samples to find out which one is better suited for making concrete.   The sample with river sand had the least amount of very fine sand.

Crystal Howard presents information about local construction aggregates to eight grade students at Jean Farb Middle School. Photo by Alyssa Burley.

Crystal Howard presents information about local construction aggregates to eight grade students at Jean Farb Middle School. Photo by Alyssa Burley.

River sand is better suited for making concrete over beach sand because the very fine beach sand will absorb the water from the concrete mixture instead of the cement.

After the sieve analysis, the students made their own concrete using river sand, gravel, cement and water.  They poured the wet concrete mixture into silicone molds of butterflies, bees, trucks and footballs.  After the concrete cured, they were removed from the molds and were given back to the students to keep.

Project Cornerstone Celebrates Science, Technology, Engineering and Mathematics Month!

March is STEM month!  STEM is an acronym for Science, Technology, Engineering and Mathematics.  STEM programs are popping up all over the country to inspire students to go into STEM careers.  Project Cornerstone's programs fit perfectly into STEM-focused education.  Students learn the science behind concrete, technologies used in mining construction aggregates, engineering and mathematics that are used in the industry.

To celebrate STEM month, Project Cornerstone increased its educational efforts throughout San Diego County.

Throughout the month, Project Cornerstone estimates it reached over 2,200 students and parents with positive messages about construction aggregates and the importance of having local aggregate supplies.

Activities and events included in-class programs with 210 sixth-grade students from Greenfield Middle School and 36 advanced eight-grade students from Jean Farb Middle School; 600 middle and high school students at Career Day from Campo Middle School, Pine Valley Middle School, Portrero Elementary and Mountain Empire High School; field trips with 180 sixth-grade students from Cajon Valley Middle School; and over 1200 students and parents who participated in our booth at the San Diego Festival of Science and Engineering EXPO Day at PETCO Park.