diff --git a/corrections/chapitre_04/ex_cabinet_med.png b/corrections/chapitre_04/ex_cabinet_med.png
new file mode 100644
index 0000000000000000000000000000000000000000..6c16f95e18d332f6407902a57b9874e2fcbba2bd
Binary files /dev/null and b/corrections/chapitre_04/ex_cabinet_med.png differ
diff --git a/corrections/chapitre_04/ex_compagnie_aerienne.png b/corrections/chapitre_04/ex_compagnie_aerienne.png
new file mode 100644
index 0000000000000000000000000000000000000000..0695e67cb68e6aea386d0753845aa7954bc289e2
Binary files /dev/null and b/corrections/chapitre_04/ex_compagnie_aerienne.png differ
diff --git a/corrections/chapitre_04/ex_coursera_rel.png b/corrections/chapitre_04/ex_coursera_rel.png
new file mode 100644
index 0000000000000000000000000000000000000000..d1485ecd0d6a6944c46ac3daced7396fee9c7f00
Binary files /dev/null and b/corrections/chapitre_04/ex_coursera_rel.png differ
diff --git a/corrections/chapitre_04/ex_tepege_rel.png b/corrections/chapitre_04/ex_tepege_rel.png
new file mode 100644
index 0000000000000000000000000000000000000000..71c63985b0b3c89373ef6f8de2be11e2211beb94
Binary files /dev/null and b/corrections/chapitre_04/ex_tepege_rel.png differ
diff --git a/corrections/chapitre_04/ex_ticke_cornet.png b/corrections/chapitre_04/ex_ticke_cornet.png
new file mode 100644
index 0000000000000000000000000000000000000000..35a27e375c7ce58d5b24f8789f523f01e2eaa4df
Binary files /dev/null and b/corrections/chapitre_04/ex_ticke_cornet.png differ