VeryInteresting is a simple loan calculator. If a user enters a loan amount, an interest rate, the length of a loan, and the payment frequency, the calculator will show the monthly payment and the total interest that will be paid if the loan is paid to term. For monthly payments, it will also show an amortization table. This can be an exciting activity for students studying simple interest, as they can quickly change the number of years a loan is for or the interest rate and see the dramatic differences this makes in both the payment amount and the total amount paid in interest for a loan.