Some computer aided tools will be display here (Oct. 3, 2025)
AI assistant platform
To come (Oct. 3, 2025)
Here is the preliminary version: Use demon@gmail.com and password 2025 to log in (10/25/2025).
If you want to practice on fraction, use frac@gmail.com and password 2025 to log in;
If you want to learn how to solve a parametric equation (like: solve ax=1 for x), use para@gmail.com and password 2025 to log in.
Whether we agree or not, we cannot stop students from using calculators. Instead, we can improve them. What if we redesigned
calculators to show intermediate steps, handle negative coefficients, and connect decimal operations with polynomial operations?
Here is our contribution: AlgeCal — a calculator designed to prepare students for learning algebra.
More detail about the calculator can be found in our book.
Vertical operation with negative coefficients
With the help of Professor Lei Cai (who graduated from OU), we design the ebook.
Some explanations
Counters