Welcome to my STEM Portfolio! My name is Rebecca Mathew, and I am a student at Roland Park Country School in Baltimore, Maryland. I have participated in the STEM Institute offered at my school from eighth grade to twelfth grade. The eighth grade STEM curriculum consisted of learning the basic elements of conducting an experiment such as a problem, hypothesis, independent variable, dependent variable, and more. I enjoyed brainstorming problems that we face in our local community and conducting experiments to try to solve those issues. In STEM 1A, I conducted an experiment exploring a specific aspect of Short Term Memory. In STEM 1B, I programmed a robot (Mars Rover) to travel through obstacles in a Mars Simulation. In STEM 2A, I utilized my school's 3-D printer while learning euclidean geometry. In STEM 2B, I worked with other classmates to efficient create sunscreen and a durable package for the sunscreen.
| 8th grade STEM | Artificial Kidney | The goal of this project was to design an internal artificial kidney that could be used instead of waiting for a donor kidney. | |
| STEM 1A | |||
| Short Term Memory Article | An experiment was completed to determine whether words and pictures together are easier to remember than pictures alone or words alone with songs of different beats. | ||
| Seasonal Change | An experiment was completed to determine how to predict the effect of changes in the amount of sunshine per day on the number of leaves and percentage of green leaves. Data was collected from 3 different trees of my school over the course of a few months to show the trend. | ||
| STEM 1B | |||
| Mars Rover Project | Programs were designed to make robots travel through a Mars Rover Simulation with various sample obstacles. This file is a summary of the different programs used to guide our robot through Mars. | ||
| Scratch sample program | This file is the follow the hematite program. It was used to command the robot to follow a line. The robot detected the different color frequencies of the line and the surface. | ||
| STEM 2A | |||
| 3-D Sun | I was the first student in my school to use a 3-D software to design an object to be printed on our school's 3-D Printer. The file shows the steps I took to create my design. | ||
| Hilbert, Sierpinski, Rubik | I worked with two other of my classmates to compare Hilbert, Sierpinski, and Rubik geometry. This powerpoint shows the basic differences between these types of geometry. | ||
| STEM 2B | |||
| Sunscreen Project Stage Gate | I worked with a team to create a sustainable and effective formula to make sunscreen. We then created a durable and effecient package to hold the sunscreen. | ||
| Sustainable Battery Stage Gate | I worked with a partner to create a sustainable battery made of coins, fruit juice, paper towels and foil. Although we could not light an LED lightbulb with the battery, we proposed future work that can be researched. | ||
| ESSRE (Environmental Science Summer Research Experience for Young Women) |
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| I completed an Internship at Roland Park Country School during the summer of 2015. In this internship, I worked with a team to test the soil in the backwoods in order to find the reasoning behind increased levels of phosphate this year compared to the last few years. |
