Jonathan Castner

Jonathan Castner: Email & Phone Number

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Mathematics Instructor at Art of Problem Solving Lexington|Lancaster, Massachusetts, United States

Position:

Mathematics Instructor at Art of Problem Solving Lexington

Location:

Lancaster, Massachusetts, United States

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Last updated: 2026-09-12
Updated: 2026-09-12

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Work Experience 5 years

Mathematics Instructor at Art of Problem Solving Lexington

Aug 2023 - Current

Front Desk Lead at Art of Problem Solving Lexington

Oct 2023 - Aug 2024

Front Desk Staff at Art of Problem Solving Lexington

Oct 2021 - Oct 2023

Teaching Assistant at Art of Problem Solving Lexington

Apr 2021 - Jun 2023

Substitute Teacher at Nashoba Regional School District

Sep 2022 - Jun 2023

Line Cook and Prep Chef at Kimball Farm

Apr 2021 - Sep 2022

Jonathan Castner started working in 2021, then the employee has changed 2 companies and 5 jobs. On average, Jonathan Castner works for one company for 1 year 9 months.

Their professional focus is Classroom Management, Customer Communication, and Customer Engagement across 3 core areas.

Education

Masters of Education in Curriculum and Instruction at University of Massachusetts Lowell

Bachelor of Science in Mathematics at University of Massachusetts Lowell

Associate Degree in Mathematics Transfer at Middlesex Community College

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