diff --git a/00.brainstorming-pedagogical-teams/10.level-N1/textbook.en.md b/00.brainstorming-pedagogical-teams/10.level-N1/textbook.en.md
new file mode 100644
index 000000000..fd8831beb
--- /dev/null
+++ b/00.brainstorming-pedagogical-teams/10.level-N1/textbook.en.md
@@ -0,0 +1,52 @@
+---
+title : Brainstorming on Level 1 recommendations
+published : true
+visible : no
+---
+### Brainstorming on Level 1 recommendations
+
+Different proposals are listed. On each proposal, you can react,
+start a discussion. You can also create new proposals.
+
+1 * Objective<br>
+------------
+(Please, comment, criticize if necessary, add ideas, contribute)
+
+* Define and explain the basic concepts and associate them with the correct vocabulary
+
+* Detect users who like to ask questions to themselves, are curious, and seem to 
+present the ability to go to level 2, and encourage them.
+
+
+2 * Ideas for teaching method<br>
+----------------------
+(Please, comment, criticize if necessary, add ideas, contribute)
+
+* Simples and short sentences.
+
+* Stay as close as possible to the sensitive experiences of everyday life.
+Learning the scientific method means first observing nature, then questioning it
+on simple and specific questions by carrying out experiments. At this basic level,
+to start as much as possible from what can be observed, felt in everyday life seems
+a good idea (?).
+(dream of an educational path to chemistry that would start from taste (salty, sweet, acid, basic,
+..., odors, etc ... I don't know if it's possible).
+
+
+* In the "overview" part of each course, the photos that illustrate the experiences
+should illustrate experiments that can be performed with basic equipment
+we can find in everyday life. All internaut must be able to redo them
+(example: to show the phenomenon of the light refraction, use a glass
+water and a pencil, not a laser beam). We have the "beyond" part to inspire them, 
+to amaze and enchant them, to show what is done in our laboratories).
+
+
+3 * Mathematical background<br>
+-----------------------
+(Please, comment, criticize if necessary, add ideas, contribute)
+
+* use only integers and real numbers, fractions (but this will require
+a course on fractions) and the 4 basic operations: sum, subtraction,
+multiplication and division.
+
+