Tarina Cosgriff

I am changing careers to teaching after discovering a love of supporting middle school students while volunteering at my daughter’s K-8 school. A graduating senior at Ohio State University, I’ve maintained a 4.0 GPA throughout my four years. I am eager to begin my career teaching math to middle schoolers, and I’m looking for a district I can retire from in 20 years.

About Me

Supporting students as they grow into the adult they want to be is me why.

Students are changing, and I’m there for it.

As a daily volunteer at my daughter’s K-8 school, I found purpose in being a stable adult in students’ lives, and I found joy in watching them grow from elementary students who followed the path laid out for them into young adults who were discovering they could lay out their own path.





7th and 8th grades are a time of incredible change. Students are developing mentally and physically, often in ways they don’t understand. Their relationships are changing with their families, with their friends, and with technology. Knowing that they have an adult who knows them, who cares about them, and who will support them is crucial. I am that adult.

I’ve made mistakes, so I get it when students do.

Unlike most teachers, I did not like school. I did not work hard or live up to my potential. I was a challenging student to have in class. My grades were well below what I could have achieved, and I made choices that were not focused on my own success.






Through it all, I was a good person who needed support and caring. I see these characteristics in many of my students, and I know that they are also good people who need support and caring, not ultimatums or expressions of disappointment. I get “that student” because I was that student, and I’m always ready to support and encourage them when they decide to make a better choice.

Also, I love teaching math.

Despite my poor academic performance in middle and high school, I always had an affinity for math. I enjoy solving problems, and I believe in the foundational importance of the skills that are learned in the middle grades. In particular, algebraic concepts and simplifying fractions are bedrock concepts for higher math, and I enjoy seeing students master those standards and grow their understanding.

I help students achieve these results by using inquiry-based learning to introduce a topic, followed by scaffolded notetaking and practice. I always encourage group work because I believe in the benefits of collaborative learning, but I always assess individually so each students’ mastery is being measured.

I use data to drive my instruction. As a database programmer, the use of spreadsheets is second nature to me, and I record every student’s assessment results in a way that tells me what they understand and what they still need to practice. This helps me know when students are ready to move forward, or when I need to reteach.

Finally, I want each student to know that they are capable of doing whatever math they encounter, so I make sure each student has the opportunity to experience success in my class.

Lesson Plan Sample


Inquiry lessons are how I prefer to introduce topics, allowing students to explore the topic and apply their knowledge in a low-stakes environment focused on group discussion and experimentation.

Homework Sample


Homework should serve the student’s needs, and students have different needs. I require students to complete three or four problems, and provide additional problems for extra practice. Answers are always on the back.

Classroom Resources

Some students require re-exposure to concepts outside of the classroom due to absences or other stumbling blocks on the path to mastery. I provide videos to explain the topics in the way that I teach them. A library of my own videos is a work in progress.