DYSCALCULA LESSONS FROM DYSCALCULIA.ORG

Access our PDF files from the list below. Files contain lessons on the Base Ten System, place value, decimals, fractions, and math language development.

• See our Money Lessons

Overview of numeration and math language by Dr. Steve Chrisomalis, a linguistic anthropologist at Wayne State University-Detroit:

• Numerals & Numeration: http://phrontistery.info/numerals.html
• Number Prefixes: http://phrontistery.info/numbers.html (Greek and Latin)

NOTE ABOUT REALISTIC TEACHING MONEY

Life-like bills are highly recommend because learning disabled students have great difficulty generalizing or applying practice to real-life situations. Learning the basic concepts using real coins and life-like bills, will assure that understanding is transferred to real problem solving.

Play money and plastic coins and counters are of limited value to dyscalculic students. Obviously, the life-like bills used here are solely intended to illustrate place value in the base-10 system.

There are federal rules concerning reproductions of actual US currency.

• In general, photocopies of currency must be sized < 75% or > 1.5 times the original.
• Must be one-sided.
• Money rules: http://www.moneyfactory.gov/resources/lawsandregulations.html
• US Bills in general circulation today: $1, $2, $5, $10, $20, $50, $100.
• Denominations last printed in 1945: $500; $1,000; $5,000; $10,000; $100,000.
• Circulation of these larger denominations was discontinued in 1969, for lack of use.
• The US Treasury never issued bills larger than $100,000.