The posting
Geometry Teacher
Guadalupe Centers Charter Schools (GCCS) serves more than 1,600 students from PreK–12 and is a free, open-enrollment public charter school system located in Kansas City, Missouri. Over 97% of our students identify as Latinx, and many are bilingual or English learners. Our network includes Guadalupe Centers Elementary School, Guadalupe Centers Middle School, and Guadalupe Centers High School.
GCCS grew out of Guadalupe Centers’ educational programs — part of the longest continuously operating agency serving the Latinx community in the United States since 1919. Our deep community roots shape our mission: to prepare all students academically, socially, and emotionally for college, career, and life success.
Why Work at GCCS
Students & Families: Our teachers form strong relationships with students and families through a community-driven approach. The connection between our schools and Guadalupe Centers’ historic mission fosters trust and collaboration that support student success.
Staff Autonomy: GCCS teachers are empowered to innovate. We value professional judgment and encourage creative, research-based classroom practices that meet the needs of diverse learners.
Coaching & Development: Each staff member collaborates with their instructional coach and building leadership to set annual professional growth goals aligned to district priorities. Our development model focuses on reflection, collaboration, and continuous learning.
Competitive Benefits:
- Competitive salary aligned to experience and certification level
- Relocation stipend (for qualifying hires)
- Bilingual stipend (Spanish-speaking staff)
- Tuition reimbursement for continued education (up to lifetime cap per GCCS policy)
- Mental health and well-being support through expanded employee assistance and wellness programs
- 403(b) retirement match up to 5% (for eligible staff)
- Perfect attendance incentive program (up to $1,600 annually)
- Comprehensive health, dental, and vision coverage
Reports To:
Building Principal
Position Summary
Guadalupe Centers Charter Schools (GCCS) is seeking a dedicated, knowledgeable, and student-centered High School Geometry Teacher to join our instructional team. The successful candidate will provide rigorous, engaging, and standards-aligned mathematics instruction that supports student achievement, critical thinking, and college and career readiness.
The Geometry Teacher is responsible for developing and delivering high-quality instruction aligned with the Missouri Learning Standards (MLS) for Mathematics and the instructional expectations established by the Missouri Department of Elementary and Secondary Education (DESE).
This position emphasizes the development of students' mathematical reasoning, problem-solving abilities, spatial understanding, and application of geometric concepts to real-world situations.
The ideal candidate will demonstrate strong mathematical content knowledge, effective classroom management, a commitment to differentiated instruction, and the ability to build meaningful relationships with students and families.
Essential Duties and Responsibilities
Instruction and Curriculum Development
- Plan, develop, and deliver rigorous Geometry instruction aligned with the Missouri Learning Standards for Mathematics and GCCS curriculum expectations.
- Teach essential Geometry concepts, including: Geometric transformations, congruence, and similarity. Mathematical reasoning, logical arguments, and geometric proofs. Relationships involving triangles, polygons, and circles. Right-triangle trigonometry and the Pythagorean Theorem. Coordinate geometry and geometric constructions. Area, surface area, volume, and geometric measurement. Mathematical modeling and real-world applications of Geometry.
- Develop engaging, student-centered lessons that promote mathematical reasoning, conceptual understanding, and problem-solving skills.
- Utilize research-based instructional strategies, technology, manipulatives, and visual representations to support student learning.
- Differentiate instruction to accommodate students with varying academic abilities, learning needs, and language proficiency levels.
- Integrate mathematical practices that encourage students to construct viable arguments, communicate mathematical reasoning, and evaluate solutions.
- Maintain lesson plans, instructional materials, and curriculum documentation consistent with district expectations.
Student Assessment and Academic Achievement
- Develop and administer formative and summative assessments aligned with Missouri Learning Standards and district instructional objectives.
- Analyze student performance data to identify learning gaps, monitor academic progress, and adjust instructional practices.
- Provide timely, meaningful, and constructive feedback to students regarding their academic performance.
- Implement targeted interventions and enrichment opportunities to support students at different levels of mathematical proficiency.
- Establish measurable student learning goals and monitor progress toward academic achievement.
- Prepare students for applicable district and state assessments through standards-aligned instruction and effective assessment practices.
- Maintain accurate student grades, assessment records, and academic progress documentation in district-approved systems.
Classroom Management and Student Engagement
- Establish and maintain a safe, structured, respectful, and inclusive classroom environment that supports student learning.
- Communicate clear academic and behavioral expectations consistent with GCCS policies and procedures.
- Implement proactive classroom management strategies that promote student accountability, engagement, and positive behavior.
- Foster a growth mindset by encouraging perseverance, mathematical curiosity, collaboration, and confidence.
- Build meaningful relationships with students and families to support academic success and personal development.
- Promote student attendance, participation, and ownership of learning.
- Address student behavioral concerns using appropriate interventions and established district procedures.
Differentiation and Student Support
- Provide instructional accommodations and modifications consistent with students' Individualized Education Programs (IEPs) and Section 504 Plans.
- Collaborate with special education teachers, English Language Development staff, interventionists, and other support personnel to address individual student needs.
- Implement culturally responsive teaching practices that recognize and value students' diverse backgrounds and experiences.
- Support multilingual learners through explicit mathematical vocabulary instruction, visual representations, and appropriate language-development strategies.
- Identify students requiring additional academic or behavioral support and collaborate with appropriate school personnel to develop intervention plans.
- Maintain high expectations for all students while providing the instructional support necessary to promote academic growth.
Collaboration and Professional Responsibilities
- Participate actively in Professional Learning Communities (PLCs), mathematics department meetings, faculty meetings, and district professional development activities.
- Collaborate with mathematics department colleagues to align curriculum, assessments, instructional strategies, and student learning expectations.
- Work with instructional coaches and building leadership to establish annual professional growth goals and implement feedback to strengthen instructional effectiveness.
- Maintain accurate records of student attendance, grades, assessments, and academic progress.
- Communicate regularly and professionally with students, families, administrators, and colleagues regarding student achievement and classroom expectations.
- Participate in school improvement initiatives and contribute to a positive, collaborative school culture.
- Maintain confidentiality of student information and comply with applicable federal and state laws, district policies, and professional ethical standards.
- Fulfill assigned supervision duties and participate in school-related activities as required.
- Perform additional duties as assigned by building administration consistent with the responsibilities of the position.
Required Qualifications
- Bachelor's degree from an accredited college or university.
- Valid Missouri teaching certificate in Mathematics for grades 9–12, or another Missouri DESE-recognized credential authorizing the candidate to teach the assigned high school mathematics course.
- Candidates pursuing certification through a DESE-approved alternative or provisional certification pathway may be considered, subject to applicable certification and assignment requirements.
- Strong knowledge of secondary mathematics, particularly Geometry, and the Missouri Learning Standards for Mathematics.
- Demonstrated understanding of effective instructional practices, differentiated instruction, and student assessment.
- Strong classroom management, communication, organizational, and interpersonal skills.
- Ability to analyze student achievement data and implement instructional strategies that improve student outcomes.
- Ability to work collaboratively with colleagues, administrators, students, and families.
- Commitment to supporting students from diverse academic, cultural, socioeconomic, and linguistic backgrounds.
- Ability to satisfy applicable background screening and employment requirements.
Preferred Qualifications
- Previous teaching experience in high school mathematics, particularly Geometry.
- Experience teaching in an urban school environment or working with culturally and linguistically diverse student populations.
- Experience implementing standards-based instruction, differentiated learning strategies, and data-driven interventions.
- Familiarity with educational technology and mathematics instructional tools, including graphing calculators, interactive geometry platforms, and digital learning resources.
- Experience supporting multilingual learners and students receiving special education services.
- Bilingual proficiency in English and Spanish.
- Demonstrated commitment to continuous professional development and collaborative instructional practices.
Knowledge, Skills, and Abilities
The successful candidate will demonstrate:
- Strong mathematical content knowledge and the ability to explain complex geometric concepts clearly and effectively.
- Understanding of research-based instructional practices and effective secondary mathematics pedagogy.
- Ability to develop engaging, rigorous, and differentiated learning experiences.
- Strong classroom management and positive student relationship-building skills.
- Ability to use student assessment data to guide instructional decisions and improve academic outcomes.
- Effective written and verbal communication skills.
- Proficiency in instructional technology and digital learning platforms.
- Ability to collaborate effectively with instructional teams, school leadership, and families.
- Commitment to educational equity, student achievement, and the mission of Guadalupe Centers Charter Schools.
Physical Demands and Work Environment
- Ability to perform essential teaching responsibilities in a classroom and school environment.
- Ability to stand, walk, sit, communicate, and utilize instructional technology throughout the workday.
- Ability to supervise students and respond appropriately to classroom and school situations.
- Ability to perform classroom instructional and supervisory responsibilities in accordance with school safety procedures.
- Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential functions of the position.
Application Process
Please complete an online application at https://www.gck12.org/o/gc/page/work-for-gccs.
Attach your resume, cover letter, transcripts, and certification (if applicable).
Equal Employment Opportunity Statement
Guadalupe Centers Charter Schools (GCCS) is an Equal Opportunity Employer. We strongly encourage applications from women, minorities, veterans, and individuals with disabilities. We do not discriminate based on race, color, religion, gender, national origin, age, disability, genetic information, sexual orientation, or veteran status. We also prohibit retaliation against individuals who bring forward complaints or participate in investigations of discrimination.
