Leo J. Brueckner
1890 — 1967 · 59 obras en el catálogo
Obras
Developing mathematical understandings in the upper grades
Arithmetic we use
The new discovering numbers
The triangle arithmetics ...
How to make arithmetic meaningful
Reaching number goals
Knowing about numbers
Exploring numbers
The triangle arithmetics
Study guide for How to make arithmetic meaningful
The New thinking with numbers
The new exploring numbers
The new Learning numbers
The new Knowing about numbers
Educational diagnosis
Mathematics we use
The triangle arithmetics
![Tapa de The new curriculum arithmetics (Triangle series) Grade 3[-8]](/_next/image?url=https%3A%2F%2Fcovers.openlibrary.org%2Fb%2Fid%2F8085128-M.jpg&w=3840&q=75)
The new curriculum arithmetics (Triangle series) Grade 3[-8]
The diagnosis and treatment of learning difficulties
The new curriculum arithmetics, grade 3[-8]
The changing elementary school
1939
Mathematics for junior high schools
1931
Mathematics we use
1945
The New Knowing about Numbers
1952