Built by an Educator. For Educators. For Students.
21 Consultants is a professional development and academic support firm founded by Cluny Mendez, Ed.D. — a mathematics educator with 29 years of classroom experience, a Doctorate in Educational Leadership, and an endorsement from the College Board. Through the Infinite 8® framework and a full suite of tutoring and test prep services, 21 Consultants serves educators, students, and school leaders at every level.
29+
Years in the classroom
High school mathematics educator and college professor in NJ and FL
Ed.D.
Doctorate in Educational Leadership
University of West Florida
2022
AP® Learning Consultant
College Board — serving AP educators nationwide
5
High School Sports Coached
Three decades of leadership on and off the field
Mathematics Tutoring
Pre-Algebra & Algebra 1 / 2
Building number sense, equations, and functions
Geometry & Trigonometry
Proofs, spatial reasoning, and the unit circle
Pre-Calculus & College Algebra
Bridging the gap to higher-level mathematics
Calculus 1 & Calculus 2
Limits, derivatives, integrals — through college level
Standardized Test Prep
SAT Mathematics Prep
Digital SAT modules — problem-solving & advanced mathematics
ACT Mathematics Prep
All five content areas — strategy, timing, score maximization
General Test Prep
PERT, Accuplacer, GRE & other placement exams
AP® Mathematics Support
AP® Precalculus
Endorsed College Board support — content & exam readiness
AP® Calculus AB & BC
29+ years of AP® expertise — FRQ strategies & scoring
AP® Exam Preparation
Targeted practice, past FRQ analysis, exam-day strategy
AP® Teacher Consulting
Curriculum design, pacing & workshop support
Professional Development
The Infinite 8® PD Series
8-module strengths-based framework — Appreciative Inquiry
Half-Day & Full-Day Workshops
On-site or virtual PD for schools and teacher teams
One-on-One Educator Coaching
Personalized coaching built around your strengths
Keynote & Conference Speaking
Energizing, evidence-based sessions for educator events