selected publications
-
book
- Step by step fractions. Teacher's guide. Allen, Tex: DLM Developmental Learning Materials. 1987
- Step by step addition. Teacher's guide. Allen, Tex: DLM Developmental Learning Materials. 1984
- Step by step multiplication. Teacher's guide. Allen, Tex: DLM Developmental Learning Materials. 1984
- Step by step subtraction. Teacher's guide. Allen, Tex: DLM Developmental Learning Materials. 1984