diff --git a/2nd/01_Fraction_Developpement_Litteral/2E_fraction_technique.pdf b/2nd/01_Fraction_Developpement_Litteral/2E_fraction_technique.pdf
new file mode 100644
index 0000000..28ed6e8
Binary files /dev/null and b/2nd/01_Fraction_Developpement_Litteral/2E_fraction_technique.pdf differ
diff --git a/EnseignementsScientifique/01_Evolution_et_démographie/1B_modeles.pdf b/EnseignementsScientifique/01_Evolution_et_démographie/1B_modeles.pdf
index 6795447..0ae34c7 100644
Binary files a/EnseignementsScientifique/01_Evolution_et_démographie/1B_modeles.pdf and b/EnseignementsScientifique/01_Evolution_et_démographie/1B_modeles.pdf differ