DSE History | Origins of the Cold War Lesson-Prep Guide (Tutor Edition)

DSE History | Origins of the Cold War Lesson-Prep Guide (Tutor Edition) | Yalta to the Cuban Missile Crisis

2026-11-02

Tutor lesson-prep guides · Secondary History

Students reach for ideology as the whole answer, which cannot explain why 1945 brought cooperation and 1947 brought confrontation. This lesson splits underlying causes from triggers using a timeline counted in days.

Objectives — Students can: (1) place ten turning points from Yalta in February 1945 to the Warsaw Pact in May 1955 on a timeline and count the intervals between them; (2) sort causes into ideology, history, strategic security and economic reconstruction, giving one event for each; (3) write both a Soviet and an American reading of a source, rather than repeating one verdict.

01 Prerequisites (3-minute check)

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

Skill	Quick check	Pass mark
End of the war	When did the war in Europe end	May 1945, with the German surrender
Ideology	How did capitalism and communism differ on ownership	Private property and market prices against state ownership and planning
Map skills	Into how many zones was Germany divided in 1945	Four, held by the United States, Britain, France and the Soviet Union

02 Lesson flow (60 minutes)

Time	Stage	Tutor does	Student does
0-5 min	Opening probe	Write 1945 and 1947 on the board and ask what changed in between	Answer aloud, one idea each
5-15 min	Prerequisite check	Hand out three quick questions, mark live	Written answers, self-marked
15-37 min	Three acts	Teach the three conferences, containment, then crisis and the bipolar order	After each act, say cause or trigger
37-49 min	Worked tasks	Model four tasks, each starting with layer, event, inference	Copy then rewrite from memory
49-55 min	Independent practice	Circulate and ask only: is that a cause or a result	Three tasks, self-checked
55-60 min	Exit check	Collect papers and count errors on the spot	Written, no discussion

03 Teaching script (read it out)

Scene 1: Act one: Yalta to Potsdam

Fix the dates first. At Yalta in February 1945 the three powers agreed on four occupation zones for Germany, Soviet entry against Japan within two to three months of victory in Europe, and the framework of the United Nations. Potsdam met in August 1945, 172 days after Yalta. Germany had surrendered, the atomic bomb existed, and Truman spoke very differently from Roosevelt, so the talks on reparations and the Polish border ended without agreement. Students should hold one line: Yalta marks the high point of cooperation and Potsdam the first crack, less than half a year apart. From Yalta to the Truman Doctrine in March 1947 is 759 days, barely two years before alliance became confrontation. That timeline is the spine of every causes essay.

Why would the same group of leaders blame each other for breaking the peace two years later?

Scene 2: Act two: the making of containment

In March 1946 Churchill spoke at Fulton about an iron curtain from the Baltic to the Adriatic. In March 1947 the Truman Doctrine promised support to states under communist pressure, beginning with Greece and Turkey, which is containment made official. In June 1947 the Marshall Plan offered economic aid to western Europe, reconstruction on the surface and economic alignment in practice; the Soviet Union refused and required its satellites to refuse too, splitting the continent economically. In June 1948 the Berlin blockade cut the land routes and the West supplied the city by air until May 1949, 322 days later. NATO followed in April 1949 and the Warsaw Pact in May 1955, roughly 6.1 years apart, completing two armed camps. Every event must be filed under political, economic or military.

Why did Moscow read the Marshall Plan as a threat rather than as help?

Scene 3: Act three: crisis, detente and historiography

The Cuban Missile Crisis ran from 16 to 28 October 1962, 12 days that came closest to nuclear war. It ended with the missiles removed, an American pledge not to invade Cuba, and a secret withdrawal of missiles from Turkey, followed by a hotline: crisis produced rules. Teach the argument in three positions. Traditional accounts stress Soviet expansion and American response; revisionist accounts stress a long American refusal to accept Soviet security needs; post-revisionist accounts stress shared responsibility and misperception. For source questions, quote the source, state whose view it represents and its limits, then judge. The commonest failure is offering a consequence as a cause, such as listing the arms race as an origin of the Cold War.

If you read only American archives, whose reasoning would you miss?

04 Question types and worked steps

Type	Example	Steps	Answer
Timeline task	Order the key events from Yalta to the Warsaw Pact.	Year and month first, one function per event, mark the turning point, close with the trend.	Example: the Truman Doctrine in March 1947 is the turn.
Causes analysis	Analyse why the Cold War broke out between 1945 and 1947.	Four layers, one event each, name the most important layer, close in one sentence.	Example: strategic security mattered more directly than ideology.
Source question	A Churchill Fulton extract asks for its view and limits.	Identify author and date, summarise the view, note bias, add one opposing perspective.	Example: an opposition speaker carries fewer constraints.
Responsibility judgement	The Soviet Union was mainly responsible for the Cold War. Do you agree?	Take a position, two arguments for, one against, conclude mainly but not solely.	Example: the need for a buffer zone is underweighted.

Sanity check (teach this): Check the intervals before teaching: Yalta on 11 February 1945 to Potsdam on 2 August 1945 is 172 days. The Berlin blockade runs 322 days, close to eleven months, so a full year is too loose. NATO in 1949 and the Warsaw Pact in 1955 are 6.1 years apart, never the same year. The Cuban crisis lasted 12 days, not months. Yalta to the Truman Doctrine is 759 days, and an answer of five years has silently moved 1947 to 1950.

05 Independent practice (3 questions)

Question	Answer	What to watch
Distinguish the Truman Doctrine from the Marshall Plan.	The doctrine gave political and military support to threatened states; the plan gave large economic aid to western Europe, broader in scope and economic in emphasis.	Watch for the two being merged into one policy.
How did the Berlin blockade deepen the bipolar order?	The airlift defeated the blockade, which pushed NATO into existence in 1949 and Germany into two states.	Watch for answers that stop before the consequences.
The Cold War was an ideological conflict. Support with two events and challenge with one.	Support: the anti-communist doctrine and the division of eastern Europe. Challenge: cooperation over occupied Germany in 1945 shows security interests could outweigh ideology.	Watch for answers with support but no challenge.

06 Common mistakes and what to say

Mistake	Student writes	Say this
Mistaking a result for a cause	Listing the arms race as a cause of the Cold War.	The arms race followed the breakdown. Causes sit between 1945 and 1947, in occupation zones and reparations.
Using a single perspective	Explaining the conflict as a Soviet drive for world domination.	Add the Soviet memory of two invasions from the west and the demand for a buffer. One-sided answers cap out.
Careless dates	Placing the Berlin blockade in 1949 as its start.	The blockade began in June 1948 and lifted in May 1949, 322 days later. Separate start from end.
Confusing the alliances	Saying the Warsaw Pact was formed in 1949 to answer the Marshall Plan.	NATO came in 1949 and the Warsaw Pact in 1955, 6.1 years later, in response to West Germany joining NATO.

07 Homework (paper, section and question numbers)

Secondary history chapter index: finish the three tasks here, then compare how the two world wars were explained in the twentieth century chapter — Tasks 1-3 on this page

08 Exit check (last 5 minutes)

Question	Answer	Decision
In which year was the Yalta conference?	1945, February	Wrong means reteach act one
Which speech and which doctrine opened containment?	The iron curtain speech and the Truman Doctrine	Wrong means reteach act two
How many days did the Cuban Missile Crisis last?	12	Wrong means reteach act three

09 Tutor FAQ

Which year group is this for?

Mainly S5 Cold War units; S4 groups that have studied the 1945 settlement can start with act one.

How many dates must be memorised?

Eight core ones: Yalta 1945, Potsdam 1945, the iron curtain 1946, the Truman Doctrine 1947, the Marshall Plan 1947, the Berlin blockade 1948, NATO 1949, the Warsaw Pact 1955.

Must students name the schools of history?

No, but they must be able to write both readings: one side alleging expansion, the other stressing security.

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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.