Computer Science:

• Languages: Python, Java, C, C++, MATLAB, Go, RISC-V assembly
• Debugging: LLDB, GDB, IDE tools for setting breakpoints and debugging code
• Machine Learning: SciKit Learn, PyTorch, reinforcement learning theory

Math:

• Basic arithmetic
• Algebra
• Calculus (up to multivariable)
• Discrete math & probability theory
• Linear algebra

 Japanese:

• Speaking: Native fluency (correct grammar, expressions, pronunciation, keigo)
• Reading/Writing: Advanced (1000 kanji, all hiragana & katakana)

 Chess:

• Beginner & intermediate players (98th percentile peak rating on chess.com)

Hello!

I'm Daichi, a UC Berkeley graduate with degrees in Computer Science and Cognitive Science. Originally from Japan, I’m fully bilingual in English and Japanese and offer expert tutoring in math, computer science, and Japanese. For those interested, I also provide chess lessons to help sharpen strategic thinking and problem-solving skills.

I have been tutoring since 2020, working with students from 3rd to 11th grade. This experience has honed my ability to adapt to diverse learning styles and age groups, ensuring each student receives personalized support.

What I love most about tutoring is witnessing those “aha” moments—when concepts click, skills grow, and confidence soars. Whether you’re looking to build a strong foundation, master advanced topics, learn a new language, or gain confidence in a subject, I’m here to help you succeed!

Risk-Free Satisfaction Guarantee

If the trial lesson doesn’t meet your expectations, we’ll gladly help you connect with another top-rated, highly qualified tutor—or issue a FULL refund.

Refund for Lesson Packages

You may cancel a lesson package with at least 24 hours' written notice before the next lesson. Completed lessons will be billed at the standard hourly rate, and the remaining balance will be refunded minus a 5% processing fee. The fee is waived if you keep the balance as credit on your TimeAfterSchool account for other lessons.

Cancellation and Rescheduling Policy

• Standard Policy: Provide at least 24 hours' notice before the scheduled start time to cancel or reschedule a lesson free of charge. Cancellations or reschedules with less than 24 hours’ notice will incur the full lesson fee.
• Grace Period for Packages: For each packages of 10 or more lessons, you are allowed one late cancellation or rescheduling (with less than 24 hours' notice) without penalty to accommodate unexpected situations. Any additional late cancellations or changes beyond this one-time exception will be charged in full.

Adult Supervision

All tutoring sessions for students under 18 years old must be supervised by a responsible adult.