diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.en.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.en.md
index 33ee518d2..d7269dc6f 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.en.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/electromagnetism/n1/textbook.en.md
@@ -10,19 +10,21 @@ lessons:
#### Brainstorming to structure a theme "Electromagnetism" : level 1
+--------------------------------------
+
+### Foreword
+
This step is important, because it will be the
**first tree structure of the filesystems and subfiles in which the contributors will work**.
-This tree structure may evolve, but it is less agile than the educational content
-themselves. I
-
-n themselves, the titles of the chapters and sub-chapters are less important.
+This tree structure may evolve, but it is less agile than the educational contents
+themselves. In themselves, the titles of the chapters and sub-chapters are less important.
They can be changed easily, they are not the structure.
#### Advice on how to structure this level
-At this first level, think:
-What knowledge on this topic is useful in everyday life or for understanding future technologies?
-What worries them or scares them?
+At this first level, think:
+What knowledge on this topic is useful in everyday life or for understanding future technologies?
+What worries them or scares them?
What amazes and amazes them?
Chapter titles should be words from everyday life.
@@ -31,7 +33,7 @@ Chapter titles should be words from everyday life.
The different proposals are numbered: they start with:
[BRST-EMG1-number]: Title
-_BRST-EMG1 for Brainstorming STructure ElectroMaGnétismme level 1)_
+_BRST-EMG1 for Brainstorming STructure ElectroMaGnétism level 1)_
To **add a proposition, create it** between 2 propositions, or in the following (following
the logic of the proposition). To do this, start with:
@@ -39,11 +41,28 @@ the logic of the proposition). To do this, start with:
To **react to an existing proposal**, add your comment after the others
starting with three initials in brackets representing you:
-(CLM): comment of such
+(CLM): previous comment
*(my initials): my comment*
_or send an email specifying:_
-_the reference [BRST-EMG1-number], which identifies me (my initials) and my comment_
+_the reference [BRST-EMG1-number], the my 3 initials and my comment_
_(+ a title if it's a new proposition)_
-----------------------------------------
\ No newline at end of file
+To **communicate my proposals**, either:
+* directly on the GitLab m3p2 with your login/password:
+if you are not there already, go to https://gitlab.m3p2.com/brainstorming-123-electromagnetism,
+and at the end of the page, in the green box click on "Edit this course".
+* on the google drive m3p2 project in the document Brainstorming-1-electromagnetism.docx.
+* or send an email to ... specifying:
+the reference [BRST-EMG1-number], then the 3 letters that identify me (my initials) and my comment
+ (+ a title if it's a new proposition) _
+
+The Gitlab will be kept up to date with your proposals, also translated into French and Spanish.
+_(This is not required, but if you can also make your contribution in English, but also in_
+_French or Spanish, this will ease the translation work)._
+This page at this level can be viewed in a multilingual version at:
+https://m3p2.com/polyglot/brainstorming-pedagogical-teams/synthesis-structuring/electromagnetism/n1
+
+----------------------------------------
+
+### Brainstorming