Author

George Lenchner

4 titles available
Cover of Creative problem solving in school mathematics by George Lenchner

Creative problem solving in school mathematics

The overhead projector in The mathematics classroom
Cover of Mathematical Olympiad contest problems for children by George Lenchner

Mathematical Olympiad contest problems for children
Cover of Math Olympiad contest problems for elementary and middle schools by George Lenchner

Math Olympiad contest problems for elementary and middle schools

About George Lenchner

Free ebooks by George Lenchner available for download.