In this new three-part series, we take a look inside Science Lab classes at BASIS Independent Silicon Valley to see how teachers are creatively demonstrating lessons about blood spatter, DNA isolation, Newton’s Laws and…elephant toothpaste!
BASIS Independent Silicon Valley’s curriculum for grades 8-12 (Upper Grades) is widely acknowledged as one of the most academically advanced programs in the world. Taught by our coveted Subject Expert Teachers, our Upper Grade curriculum challenges students to the highest international standards. Students are held accountable for mastering the material – including our rigorous science program which begins in grade 5 and extends through Honors and Advanced Placement (AP) courses.
So, how do we do it?
As discussed in part one of our Beyond the Microscope series, BASIS Independent Silicon Valley students begin their science journey in grade 5 with Introduction to Science by building a strong foundation of applied learning, critical thinking and philosophy. By grade 8, students are cultivating and refining their analytic science skills, preparing them for the challenging Honors and AP road ahead. Labs are a critical element of mastering science, especially in the Upper Grades, as it brings the curriculum to life and is integral to the success of students’ comprehension and subject mastery.
In this installment of Beyond the Microscope we check in with Dr. Anuradha Murthy, an Upper Grade biology Subject Expert Teacher and scientist who takes great pleasure in guiding students through their science journey.
- Model Ionic and Covalent Bonds
Students use popcorn seeds, mustard seeds, and M &Ms to create 2D models of a Sodium ion and a Chloride ion - demonstrating an ionic bond between them, and polar covalent bonds between two Hydrogen atoms and an Oxygen atom to make a water molecule. This lab helped reinforce concepts on how bonds form to make compounds.
- Model Carbon Compounds
Using dots and toothpicks, students create models of alkanes, alkenes, alkynes and substituted hydrocarbons. This lab enriched understanding of how Carbon can link up with itself and other elements leading to a wide diversity of carbon compounds.
- Study of Microscopic Slides
To complement their current curriculum, students prepare and study slides that include various cell types, cell division, as well as plant and animal development.
- Osmosis via Potato
By measuring thin potato slices and celery sticks before and after immersing it in hypotonic and hypertonic solutions, students witness firsthand how osmosis works in cells.
- Isolate Plant Pigments using Chromatography
Students isolate different pigments from spinach and tree leaves using paper chromatography; helping to demonstrate to the students the importance of the other pigments in a leaf other than chlorophyll.
- DNA Isolation & Analysis
After studying DNA extraction in the classroom, students get behind the microscope to isolate strawberry DNA to understand the reason behind each step of protocol that allows DNA extraction from the nucleus.
We asked Dr. Murthy to share her favorite experiment with us.
“My favorite lab thus far is the DNA Isolation and Analysis. It is amazing to see the excitement on the faces of the students as they see DNA come out of the solution and make slides to observe it under the microscope. It is also great to see my AP students then compare DNA nucleotide sequences and come up with evolutionary Cladograms.”
It’s no secret that the students truly enjoy Dr. Murthy’s class; her passion is a key ingredient to ongoing student success. She’s excited to continue to share that passion with her students in these future labs:
- DNA Electrophoresis
- Restriction Enzyme Analysis
- Hardy Weinberg Principle
Have a question for Dr. Murthy? Leave a comment for her below!
We’ll see you next week for our third and final installment of Beyond the Microscope: Bringing the Sciences to Life Through Labs & Experiments!