WASHOUGAL — Jemtegaard Middle School’s band recently helped Columbia River Gorge Elementary third-grade students of Ellen Hein, Angela Barnes and Carlie Green better understand concepts of sound and sound waves. “Band students joined our all-grade-level Zoom class and played their instruments for them,” Hein said, according to a news release. “One of the learning goals is that students will understand pitch, frequency, how sound waves are made by vibrations and how the length of the sound wave is related to frequency and the pitch of the sound.” Participating students included Logan LaFave, Evan Elliott, Chance Wilson, London Schaffer and Zackary Nelson. “This collaborative learning opportunity between the two schools greatly enriches our third-graders’ learning, and we were happy to be able to continue it via distance learning,” Hein said.