S3 History: First World War and the Treaty of Versailles — Tutor Prep Guide

S3 History: First World War and the Treaty of Versailles — Tutor Prep Guide | From Sarajevo to 1939

2026-11-11

Tutor lesson-prep guides · Secondary History

Students remember that an assassination started the war. This lesson makes them explain that the shot was the match while alliances, arms races and mobilisation timetables were the powder.

Objectives — Students can: (1) explain the outbreak in four layers (long-term rivalry, alliance blocs, the Balkan crisis, mobilisation mechanics) rather than one assassination; (2) explain why trench lines barely moved despite huge casualties (defensive firepower, machine guns, wire); (3) name three Versailles terms (Article 231, 132 billion gold marks, an army of 100,000) and argue which hurt most, linking forward to 1939.

01 Prerequisites (3-minute check)

If any of these fails, fix it before the lesson starts.

Skill	Quick check	Pass mark
Timeline	Which years did the First World War cover?	1914 to 1918, four years
Prior concept	What did an alliance commit states to do?	Join the war if a partner was attacked
Map	Where is Sarajevo?	The Balkans, in Austrian-ruled Bosnia

02 Lesson flow (45 minutes)

Time	Stage	Tutor does	Student does
0-5 min	Word diagnosis	Ask why the war began and write one assassination up uncorrected	Students give a single cause
5-14 min	Four layers	Set four rows: rivalry, alliances, Balkans, mobilisation; students sort events into them	Students place the assassination in the Balkan row
14-23 min	Why the line froze	Draw a trench line with machine guns, wire and artillery; ask why attacks failed	Students say defence outgunned attack
23-31 min	Figures	Write four years, nine million military dead and thirty days from the shot to the ultimatum; students verify each	Students confirm four years and thirty days
31-40 min	Three clauses	List Article 231, 132 billion marks and 100,000 men; students judge which was hardest and why	Students give a judgement with a criterion
40-45 min	Exit check	Ask three questions and record the error types	Students hand in three answers

03 Teaching script (read it out)

Scene 1: Script 1: the shot was the match, the powder was already laid

The heir to the Austrian throne was assassinated in Sarajevo on 28 June 1914, and Austria declared war on Serbia on 28 July, thirty days later. The real question is why a Balkan quarrel pulled in all of Europe. Four layers answer it: rivalry over empire and naval building, the alliance blocs that turned a local quarrel into a continental one, the Balkan crises that made prestige indivisible, and mobilisation timetables that made diplomacy a race against trains. Teach the layers, not the anecdote.

Follow-up: how many states mobilised within the thirty days, and why did mobilisation equal war?

Scene 2: Script 2: the machine gun made the frontal attack suicidal

In 1914 planners expected a war of weeks. It lasted four years because defensive technology beat offensive tactics: machine guns firing hundreds of rounds a minute, wire slowing infantry, artillery that churned ground without clearing trenches. The line moved a few tens of kilometres in four years while casualties ran into millions. Call it a war of attrition and make students name the mismatch between tactics and technology.

Follow-up: without wire, would machine guns alone have frozen the line?

Scene 3: Script 3: three clauses, and the one that hurt most

The treaty was signed on 28 June 1919, five years to the day after the assassination. Three clauses matter: Article 231 assigning war guilt, reparations set at 132 billion gold marks in 1921, and an army capped at 100,000 with no air force. The money was crushing, but Article 231 was politically fatal: it stripped any German government of the claim that the army had been tricked into an armistice. That grievance was available to every nationalist afterwards. 1939 is twenty years of consequence, not a sudden event.

Follow-up: the sum was fixed only in 1921, so what did Germany argue in the two years between?

04 Question types and worked steps

Type	Example	Steps	Answer
Date calculation	How long did the war last from 1914 to 1918, and how many years from 1914 to the 1919 treaty?	1) Subtract 1914 from 1918 2) Subtract 1914 from 1919 3) Give units for both	Four years; five years
Causal explanation	Why did a regional assassination become a European war?	1) Long-term rivalry 2) Alliance obligations 3) Automatic mobilisation 4) Conclusion: institutions magnified a local crisis	Alliances and mobilisation plans turned a local quarrel into general war
Source evaluation	Was the Treaty of Versailles too harsh on Germany?	1) List terms 2) Show capacity to pay 3) Show political effects 4) Judge explicitly	Economically heavy and politically fatal, because Article 231 removed Germany legitimate ground to negotiate
Comparison	How did the two world wars differ in character?	1) Stalemate versus manoeuvre 2) Civilian targeting 3) Compare mobilisation and deaths	The first was attrition on fixed lines; the second spread to cities and civilians

Sanity check (teach this): Sanity checks: 1918 minus 1914 is 4 years, not 36; 1919 minus 1914 is 5 years, not 15; 28 June to 28 July is 30 days, not 60; 132 billion marks is 132,000 million, not 132 million; an army cap of 100,000 is not one million.

05 Independent practice (3 questions)

Question	Answer	What to watch
How many years from the 1919 treaty to the outbreak of war in 1939?	20 years	Did you subtract rather than add
What was the German army ceiling under the treaty?	100,000 men	Did you write 100,000 rather than one million
Reparations of 132 billion marks over a population of about 62 million is roughly what per head?	About 2,129 marks	Did you convert to 132,000 million before dividing

06 Common mistakes and what to say

Mistake	Student writes	Say this
Reducing the cause to one shot	The war happened because a duke was shot	The shot was the trigger. Write alliances and timetables, because they are what stopped the crisis staying local.
Explaining stalemate by fear	Soldiers would not attack because they were afraid	It was technology: machine guns, wire and artillery made attack predictably futile. Name the mismatch.
Treating Article 231 as the reparations clause	Article 231 is the clause that made Germany pay	Article 231 assigns war guilt; the sum was fixed in 1921. Keep them apart or evaluation answers collapse.
Jumping from the treaty to 1939 without mechanism	Versailles was harsh, so war was inevitable	Show the chain: reparations, inflation and unemployment, extremist votes, revisionist demands, 1939.

07 Homework (paper, section and question numbers)

History chapter index: this chapter, redo one date calculation and one causal explanation — First World War chapter, questions 1 and 2
History chapter index: this chapter, write a 100 word four-layer explanation of the July crisis — First World War chapter, question 3

08 Exit check (last 5 minutes)

Question	Answer	Decision
How many years from 1914 to 1918?	Four years	Wrong: reteach the timeline in script 1
Why did the trench line barely move?	Machine guns and wire gave defence the advantage	Wrong: reteach script 2
Name the three Versailles terms.	Article 231, 132 billion marks, an army of 100,000	Wrong: reteach script 3

09 Tutor FAQ

How many dates should students know?

Only 1914, 1918, 1919 and 1939. Use about for everything else.

Students mix the two world wars. What fixes it?

A three-column table: dates, main theatres, civilian share of deaths. Filling it exposes the confusion.

Is there follow-on reading?

Yes. The homework links to the history index, which now runs from ancient civilisations through medieval Europe to 1919.

Find a tutor — free Tutor Registration →

A TutorZone lesson-prep guide. Written by the TutorZone team; questions and lesson flow are original and are not taken from any school or publisher material.