Methodology: Synthesis

Structure and tips for the bac essay.

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Methodology: Synthesis

Goal of the exercise

In ≈ 500 words, you must bring together three documents (often a non-fiction text, a literary text and an image) around a common axis, without copying them and without adding personal opinion.

Step 1 – Document analysis

For each document, identify:

  • nature (article, novel excerpt, cartoon, photograph),
  • source and date,
  • main idea,
  • point of view (objective, satirical, militant),
  • a striking quotation or detail you may use.

Step 2 – Find the common thread

Look for a question that runs through all three documents. Avoid being too narrow (each document brings something specific) or too broad (the topic must be precisely the corpus). The common thread becomes your problematic.

Step 3 – Build a plan

Typical structures:

  • Thesis – antithesis – synthesis: a position, its opposite, a reconciliation.
  • From causes to consequences to responses.
  • Three complementary angles (e.g. economic / social / cultural).

Each part must use the three documents at least once (or explicitly justify their absence).

Step 4 – Write the synthesis

  • Introduction: present the topic, identify the documents (no list-like description), formulate the problematic, announce the plan.
  • Body: 2 or 3 paragraphs. Each starts with a topic sentence and cross-references the documents using attribution phrases: as journalist X argues in Doc 1, Doc 2 echoes this view, the photograph in Doc 3 challenges this idea.
  • Conclusion: answer the problematic, optionally open the debate.

Cross-referencing phrases

FunctionPhrases
Agreementechoes, supports, illustrates, confirms
Disagreementcontradicts, qualifies, undermines, complicates
Additionadds, complements, extends
Nuancehowever, on the other hand, conversely

Things to avoid

  • No "I think" or "in my opinion" — the synthesis is neutral.
  • No long quotations: paraphrase and integrate short fragments.
  • No description of the documents one after the other (this is not a corpus presentation).
  • No information from outside the corpus.

Time management (90 min)

15 min analysis · 15 min planning · 50 min writing · 10 min re-reading.

Sources et références

Ce cours est rédigé par l'équipe RévisionBac à partir du programme officiel et des sources institutionnelles ci-dessous. Elles permettent de vérifier les définitions, les chiffres et les normes citées.

  1. 1.Programmes et ressources du lycée général et technologiqueÉduscol — Ministère de l'Éducation nationale
  2. 2.Bulletin officiel de l'Éducation nationale (programmes du baccalauréat)education.gouv.fr
  3. 3.Cadre européen commun de référence pour les languesConseil de l'Europe

Contenu vérifié et mis à jour le 08/08/2026. Les liens renvoient vers les sites officiels des éditeurs cités.

Historique éditorial

Ce chapitre est rédigé et relu par l'équipe RévisionBac, puis enrichi par les contributions validées.

  1. Dernière mise à jour du cours (relecture et enrichissement)
  2. Première publication de la fiche de cours