Mathematics Teacher

internationalschools· Centro Educacional Escuela Católica Activa, S.A.
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📍 St. Jude School, Costa Rica, San JoseFull time

About this role

Job Description

Purpose of the Role

To plan, deliver, and assess the teaching and learning process of Mathematics at the secondary school level, fostering students' critical, logical, and analytical thinking skills. The Mathematics Teacher contributes to the holistic development of students within an international learning environment by promoting problem-solving, mathematical reasoning, and the practical application of mathematical concepts, aligned with ISP’s mission, vision, and values.


Key Responsibilities

  • Design and implement lesson plans aligned with the school's curriculum and academic programs.
  • Develop instructional units, learning activities, projects, and educational resources that promote meaningful mathematics learning.
  • Deliver lessons that develop competencies in algebra, geometry, statistics, probability, calculus, and other mathematical disciplines according to the assigned grade levels.
  • Foster critical thinking, problem-solving, and logical reasoning through engaging and student-centered instructional methodologies.
  • Implement differentiated instructional strategies to address diverse learning styles and student needs.
  • Promote the application of mathematical concepts in real-world and interdisciplinary contexts.
  • Integrate technology tools and digital resources to enhance learning and facilitate mathematical visualization.
  • Design and administer formative and summative assessments to monitor student progress and achievement.
  • Provide timely feedback and implement continuous improvement strategies.
  • Maintain accurate records of grades, attendance, and academic performance.
  • Prepare academic reports in accordance with institutional guidelines.
  • Maintain effective and professional communication with students, parents, and guardians.
  • Actively participate in academic meetings, professional development activities, and continuous improvement initiatives.
  • Collaborate in academic, scientific, cultural, and extracurricular activities organized by the institution.
  • Contribute to a positive school climate and strengthen the institutional culture.
  • Fully comply with the institution’s child protection and safeguarding policies.
  • Ensure a safe, inclusive, and respectful learning environment for all students.
  • Promptly report any situation that may compromise the safety or well-being of a student.

Competencies

  • Strong knowledge of mathematics and its practical applications.
  • Analytical thinking and problem-solving abilities.
  • Curriculum design and instructional planning.
  • Competency-based assessment.
  • Proficiency in educational technology tools.
  • Classroom management and positive discipline.
  • Effective communication skills.
  • Educational leadership.
  • Teamwork and collaboration.
  • Organization and planning skills.
  • Adaptability and flexibility.
  • Empathy and service orientation.
  • Professional integrity.
  • Commitment to continuous learning.
  • Ability to resolve conflicts constructively.
  • Capacity to motivate students and build confidence in mathematics learning.

Position Requirements

  • Bachelor’s Degree or Licentiate Degree in Mathematics Education, Mathematics, Educational Mathematics, or a related field.
  • Membership in the corresponding professional association, where applicable.
  • Minimum of 2–3 years of experience teaching Mathematics at the secondary school level.
  • Experience in planning, developing, and implementing mathematics curricula and academic programs.
  • Knowledge and application of modern teaching methodologies, including project-based learning, collaborative learning, and differentiated instruction.
  • Experience in competency-based assessment and academic performance analysis.
  • Ability to integrate educational technology and learning platforms into the teaching and learning process.
  • Ability to develop innovative instructional materials and engaging learning experiences.
  • Excellent verbal and written communication skills.
  • Experience working with students in multicultural and international environments.
  • Intermediate to advanced English proficiency preferred for collaboration in an international academic environment.
  • Ability to motivate, guide, and support students in developing their mathematical competencies.
  • Strong organizational, planning, and classroom management skills. 
  • Commitment to continuous learning, professional development, and educational best practices.
  • Alignment with institutional values and commitment to student safeguarding and well-being policies.

Preferred Qualifications

  • Experience in bilingual, international, or International Baccalaureate (IB) schools.
  • Experience teaching intermediate and advanced-level Mathematics courses.
  • Experience preparing students for national or international standardized assessments.
  • Additional certifications or professional development in Mathematics Education, Educational Technology, or innovative teaching methodologies.
  • Experience leading academic clubs, mathematics competitions, Olympiads, or STEM-related extracurricular activities.
  • Knowledge of educational platforms, mathematics software, and data analysis tools applied to teaching and learning.

ISP Principles


Begin with our children and students. Our children and students are at the heart of what we do. Simply, their success is our success. Wellbeing and safety are both essential for learners and learning. Therefore, we are consistent in identifying potential safeguarding

and Health & Safety issues and acting and following up on all concerns appropriately.


Treat everyone with care and respect. We look after one another, embrace similarities and differences and promote the well-being of self and others.


Operate effectively. We focus relentlessly on the things that are most important and will make the most difference. We apply school policies and procedures and embody the shared ideas of our community.


Are financially responsible. We make financial choices carefully based on the needs of the children, students and our schools.


Learn continuously. Getting better is what drives us. We positively engage with personal and professional development and school improvement.

ISP Commitment to Safeguarding Principles

ISP is committed to safeguarding and promoting the welfare of children and young people and expects all staff and volunteers to share this commitment. All post holders are subject to appropriate vetting procedures, including an online due diligence search, references and satisfactory Criminal Background Checks or equivalent covering the previous 10 years’ employment history.

ISP Commitment to Diversity, Equity, Inclusion, and Belonging

ISP is committed to strengthening our inclusive culture by identifying, hiring, developing, and retaining high-performing teammates regardless of gender, ethnicity, sexual orientation and gender expression, age, disability status, neurodivergence, socio-economic background or other demographic characteristics. Candidates who share our vision and principles and are interested in contributing to the success of ISP through this role are strongly encouraged to apply.

Frequently Asked Questions

Is the salary disclosed for the Mathematics Teacher position at internationalschools?
The salary for this Mathematics Teacher role at internationalschools is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Mathematics Teacher position at internationalschools located?
This Mathematics Teacher role at internationalschools is based in St. Jude School, Costa Rica, San Jose. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Mathematics Teacher role at internationalschools full-time or part-time?
This is listed as a Full time position. It is posted as a Mathematics Teacher role in the Centro Educacional Escuela Católica Activa, S.A. department at internationalschools.
Which team or department does the Mathematics Teacher at internationalschools belong to?
This Mathematics Teacher position is part of the Centro Educacional Escuela Católica Activa, S.A. department at internationalschools. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Mathematics Teacher position at internationalschools?
Click the "Apply Now" button on this page. You will be redirected to internationalschools's official application portal hosted on workday where you can submit your application directly.
When was the Mathematics Teacher job at internationalschools posted?
This Mathematics Teacher position at internationalschools was posted on Oct 2, 2026. Apply as soon as possible — early applications are often reviewed first.
Mathematics Teacher
internationalschools
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