4-27+Ying+Lin

Ying Lin TPJ 4/27 2009 Objectives: Week 3 Roller Coaster Projedct due this Friday When the class started. Mr. Manning passed back week 2 Roller Coaster project, and then he talked litlebit about the total project that is due May 8th.After that, Mr. Manning gave students rest of the class time to work on their "Sound Wave In Air & Other Media" that we picked up last week , which is page 16 and 17.After we finished our classwork, we checked our answers with Mr. Manning's answers. The answers were upon the white board. Mr. Manning said that he will check on "Sound Waves In Air % Other Media" tomorrow