diff --git a/materials/part1_local_imports.pptx b/materials/part1_local_imports.pptx index 8c54fd0..1f7d65e 100644 Binary files a/materials/part1_local_imports.pptx and b/materials/part1_local_imports.pptx differ diff --git a/materials/part4_accessibility.pptx b/materials/part4_accessibility.pptx index e1e95c5..fa5178c 100644 Binary files a/materials/part4_accessibility.pptx and b/materials/part4_accessibility.pptx differ