K.A. Hesse

Basic Number Screening Test

2001

The Four Rules of Number

1982

Graded Arithmetic Practice (Graded Arithmatic Practice)

1971

Third Problems

1970

Second Problems

1971

Graded Number Workbooks

1974

Graded Arithmetic Practice

1971

First Problems

1971

Prawf Sgrino Rhif Sylfaenol

2002

Prawf Sgrinio Rhif Sylfaenol

2002

Nottingham Number Test

1974

Nottingham Number Test Manual

1974

Leicester Number Test

1970

Leicester Number Test Man

1974

Intro to First Problems Tchr

1982

Four Rules of Fractions

1970

Four Rules and Conversions

1969

Basic Number Screening Manual

1976