Grade 7 Science: Genetics
DNA, chromosomes, and amino acids are big concepts, but not too big for scientists in Mr. Steve Collins’s class. Recently they shared the 3D models of DNA they created using materials like LEGOs, colorful rubber bands, popsicle sticks, marshmallows, Twizzlers, poker chips, and more.
Each model depicted the building blocks of DNA (a sugar, a phosphate, and one of four possible bases).
The project is part of a lesson on the science of genetics and evolution and how physical characteristics are passed down from one generation to the next. Students are studying complex topics like genetic engineering and protein synthesis as well as vocabulary, key ideas and key skills.
The project is part of a lesson on the science of genetics and evolution and how physical characteristics are passed down from one generation to the next. Students are studying complex topics like genetic engineering and protein synthesis as well as vocabulary, key ideas and key skills.
“DNA is the cookbook for making living things,” shared Mr. Collins. “The genes are recipes that can be used to build proteins.”
Much of a recent class period focused on transcription and translation, two steps in a highly choreographed synthesis process that makes protein. Proteins determine genetic traits like hair color as well as how bodily functions like digestion work. To prepare for a unit test, seventh-grade scientists practiced transcribing a DNA message into RNA language as Mr. Collins used the drawing tool on his iPad to sketch out the process for visual learners. They also reviewed a comprehensive study guide.
Graland Country Day School
Graland Country Day School is a private school in Denver, Colorado, serving students in preschool, kindergarten, elementary, and middle school. Founded in Denver in 1927, Graland incorporates a rich, experiential learning approach in a traditional classroom setting, emphasizing the development of globally and socially conscious leaders who excel academically.
