Sandeep

Math and science tutor · Founder of TI84CalcHub

I am a math and science tutor with more than five years of teaching experience. I built TI84CalcHub so students can practice on a free calculator that works like the TI-84 they use in class.

About Sandeep

Sandeep holds an MS in Mathematics and has taught and tutored math and science for more than five years. His students range from middle school to college, and most of them need a calculator for the work they do every week: graphing functions, checking answers, running statistics and preparing for exams.

The TI-84 comes up in almost every session. Students get stuck on the same things again and again: which menu holds a command, why a graph will not show, how to find a zero or an intersection, and how to read the output of a statistics test. Sandeep writes each guide on this site around those real questions, with the exact keys to press in the order you press them.

Not every student owns a TI-84, and many need to practice at home, on a phone or on a school Chromebook. Sandeep started TI84CalcHub to close that gap: free online calculators with the same keys and menus as the real models, plus step-by-step guides that explain what each key does. Students can practice here, then bring an approved physical calculator on test day.

Education

MS in Mathematics

Experience

5+ years teaching and tutoring math and science

Focus

TI-84 graphing, statistics and algebra guides

Based in

United States

How content on TI84CalcHub is checked

Every guide and example on this site follows the same steps before it is published:

  1. Keys tested on the calculator. Each button sequence is pressed on our online TI-84 and compared with the menus of a physical TI-84 Plus CE.
  2. Answers checked twice. Every result is compared with a second source, such as a textbook answer key, a statistics table or a separate calculation.
  3. Written in plain English. Steps use short sentences and the exact key names printed on the calculator.
  4. Updated when things change. If a reader reports an error, it is fixed and the page date is updated.

Content by Sandeep

Sandeep built and wrote every calculator page and guide on TI84CalcHub:

Contact the author

Spotted a mistake or have a question about a guide? Write to hello@ti84calchub.com or use the contact page.