About the PFD Boot Camp
Percents, Fractions, and Decimals
OverviewThe PFD Boot Camp is a series of materials to help students with Percents, Fractions, and Decimals. PFD Boot Camp has:
The purpose is to help students develop understanding, competence, and confidence with percents, fractions, and decimals.
Worked Examples, Videos, and Full Modules can be accessed using the Index Page.
This site is under construction.


The goals are to help students:
These modules are intended for students who "have had" fractions, decimals, and percents, but want to brush up and improve their understanding and skills. Intended audiences include:
In each of the modules you will find
This project is under construction. The intention is to develop nine (9) modules.
The first four modules are:
1. Fractions – what are they?
a. Meaning of a fraction.
b. Put fraction in lowest terms.
c. Put fraction in higher terms.
d. Fraction to division relationship (¾ = 3÷4).
e. Mixed number to improper fraction.
2. Decimals – what's that dot for?
a. Meaning of decimals.
b. Read a decimal correctly.
c. Add and subtract decimals.
d. Convert decimals to fractions.
e. Multiply and divide numbers (& decimals) by 10, 100, 1000, ....
3. Multiply Decimals – hey, count from the right, not the left
a. Multiply decimals.
4. Long Division – Daddy, Mommy, Sister, Brother
a. "Long" Division Algorithm.
b. Improper fraction to mixed number.
c. "Long" division algorithm with decimals.
d. Convert fractions (& mixed) to decimals.
PFD Boot Camp Help Sessions  to be announced.
Click here for Basic Training (on the basic facts of addition, subtraction, multiplication, and division).
© Jim Olsen
Jim has been teaching at Western Illinois University, where he is a professor in the Mathematics Department, since 1994. After graduation from Doane College (1979) he taught high school mathematics for ten years in Nebraska. His PhD (Educational Mathematics) is from the University of Northern Colorado. At W.I.U. he teaches mathematics courses and teaching methods courses for prospective and practicing teachers. More information can be found here.
Hayley Moore is an undergraduate student at Western Illinois University, majoring in elementary education and also earning a mathematics endorsement. She is helping with this project.
Joe Illichman is an undergraduate student at Western Illinois University, majoring in mathematics in the teacher certification option. He is helping with this project.