Calculus I, II & III
Limits, integration techniques, series, partial derivatives, multiple integrals, and vector calculus.
College-level mathematics
Online tutoring for college math courses.
Live one-to-one help for undergraduate and returning students, aligned with your own syllabus, lectures, problem sets, and exams.
$50 / 60 minutes · No long-term commitments · No required prepaid packages · 12-hour cancellation policy
What we cover
Courses sessions cover
Linear algebra
Systems of equations, matrices, determinants, vector spaces, linear transformations, eigenvalues, and eigenvectors.
Differential equations
First-order equations, second-order linear equations, Laplace transforms, and systems.
Probability & applied statistics
Distributions, hypothesis testing, confidence intervals, regression, and ANOVA.
Problem sets & exam review
Working through your assigned problems and preparing for midterms and finals at your course's pace.
Book when you need it
Schedule around problem-set deadlines and exams, with no semester-long commitment.
College and graduate-level teaching experience.
Joshua Lizardi holds an M.S. in Applied Mathematics, an M.S. in Data Analytics, a B.S. in Mathematics, and a Graduate Certificate in Applied Statistics, with 9+ years of teaching mathematics, including college and graduate-level instruction.
- Live one-to-one sessions through Zoom
- $50 per 60-minute session
- No long-term commitments or required prepaid packages
- 12-hour cancellation policy
- Flexible scheduling
- Payment through Zelle
Family cancellation policy, effective November 1, 2026
Cancel or reschedule with at least 12 hours' notice without charge. With less notice, the full $50 session fee may be charged. Student no-shows are generally charged the full scheduled fee. If Northstar cancels, you are not charged; any payment collected for that session is refunded or credited as appropriate. Rescheduling depends on mutual availability. Previously agreed individual exceptions are honored, and this policy does not apply to earlier sessions.
Private tutoring is $50 per 60-minute session. Invoices are typically issued after 4 tutoring sessions and paid through Zelle. Late-cancellation or no-show fees may appear on an invoice. No required prepaid packages or long-term commitments.
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