In the Federal Republic of Germany the number of educational experimen
ts testing scholastic coeducation of handicapped and non-handicapped c
hildren has increased in the last decade. In the first part of this ar
ticle, some topics of the current discussion about mainstreaming are a
nalysed. Some arguments frequently used in discussion then are related
to findings of research projects on different forms of integration of
handicapped pupils into general education classes. One focus lies on
the development of handicapped pupils in mainstreaming classes, both w
ith regard to their academic achievements and their social and emotion
al development. The prevailing positive results are explained by typic
al characteristics of integrative lessons. Mainstreaming classes offer
appropriate possibilities for progress in achievements and developmen
t, not only for handicapped pupils but for their non-handicapped schoo
lmates, too. Moreover, most parents and teachers are very contented wi
th integrative education.