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Two Thai professionals compare option data on a tablet before making a recommendation
TF30 · B1 GRAMMAR · 30 MIN

Compare with Precision

Describe large and small differences, use data accurately and recommend one option.

LevelB1
Time30 minutes
Lesson typeGrammar in Context
Final evidenceFour modifiers, three data-based comparisons and one balanced recommendation
Why this lesson matters · เหตุผลที่เรียนบทนี้

For learners: Describe large and small differences with four comparative modifiers, use data accurately, and recommend one option.

For teachers: This B1 step transfers accurate factual reporting into data-based comparison. Learners calibrate difference strength with four modifiers, verify claims against three criteria, answer an evidence challenge, and recommend one option.

สำหรับผู้เรียน: อธิบายความแตกต่างมากและน้อยด้วย comparative modifiers 4 แบบ ใช้ข้อมูลอย่างถูกต้อง และแนะนำหนึ่งตัวเลือก
สำหรับครู: ขั้น B1 นี้ถ่ายโอนการรายงานข้อเท็จจริงที่แม่นยำไปสู่การเปรียบเทียบจากข้อมูล ผู้เรียนปรับระดับความแตกต่างด้วย modifiers 4 แบบ ตรวจข้อสรุปกับเกณฑ์ 3 ด้าน ตอบคำถามท้าทายหลักฐาน และแนะนำหนึ่งตัวเลือก

Your Goal

By the end of this lesson, you can describe large and small differences with four comparative modifiers, use data accurately, and recommend one option.

คำอธิบายภาษาไทย

บอกความแตกต่างมากและน้อยด้วย comparative modifiers 4 ตัว ใช้ตัวเลขอย่างถูกต้อง และแนะนำตัวเลือก 1 อย่างโดยมีหลักฐานรองรับ

Why this lesson matters

Words such as much, far, slightly and a little tell the listener how important a difference may be. The modifier must match the data, direction and decision context or the recommendation can become misleading.

ภาษาไทย: much, far, slightly และ a little ช่วยบอกขนาดความแตกต่าง แต่ต้องตรงกับตัวเลข ทิศทาง และบริบทการตัดสินใจ มิฉะนั้นคำแนะนำอาจเกินจริงหรือทำให้เข้าใจผิด

PROGRESS FOCUS What improves today?
MEAN · MeaningMatch large and small difference language to verified data and priorities.
FORM · FormPlace much, far, slightly and a little before accurate comparative forms.
USE · Real useCompare two options across three criteria and defend one recommendation.

Your 30-minute route

1 · 4 minRead the data
2 · 5 minControl four modifiers
3 · 5 minMatch strength
4 · 5 minListen for evidence
5 · 5 minPlan recommendation
6 · 6 minCompare and retry
Teacher Lesson Plan

Verify baseline, direction and unit before scoring modifier choice. The final recommendation must follow stated data and priority.

StageTeacher moveEvidence
1 · DataCheck baseline, unit and direction.Eight comparisons
2 · FormBuild four modifier patterns.Twelve choices
3 · EvidenceRepair exaggerated or unclear claims.Eight audits
4 · ListenRecover claim, data and decision.Two maps
5 · PlanCompare three criteria.Option map
6 · PerformScore MEAN/FORM/USE and retry.Recommendation + retry

Stage 1 · Read the comparison before choosing the language

Identify baseline, unit and size of difference so the comparison stays true.

4 minutes
STUDENT TASK
Data pairDifferenceSafe first statement
฿8,000 vs ฿12,000฿4,000 / about 33% lower than 12,000Option A is cheaper than B.
42 min vs 45 min3 minutesOption A is slightly faster.
78% vs 81%3 percentage pointsB has a slightly higher success rate.
9 defects vs 3 defects6 fewer / one-third as manyThe new process has far fewer defects.
  1. Read eight pairs and name the baseline and unit.
  2. Calculate or describe the difference without changing the direction.
  3. Label each difference large, small or context-dependent.
  4. Write one safe comparative sentence for every pair.
Finish evidenceEight baseline/unit checks and eight accurate comparisons.
Teacher Help · Stage 1

Do not accept a modifier before the learner verifies direction, unit and baseline. Context can change whether a numerical difference is practically large or small.

Stage 2 · Control four comparative modifiers

Place much, far, slightly and a little before the comparative form.

5 minutes
STUDENT TASK
Difference sizeModifier + comparativeExample
largemuch + comparativeThe annual plan is much cheaper.
large / emphaticfar + comparativeThe train is far more reliable.
small / neutralslightly + comparativeOption B is slightly faster.
small / conversationala little + comparativeThe room is a little quieter.
  1. Sort twelve comparison facts into large or small difference.
  2. Complete three sentences with each of the four modifiers.
  3. Use more/less + adjective where an -er form is not available.
  4. Repair four errors such as “much more cheaper” or “slightly more fast.”
  5. Read the repaired comparisons with natural stress on the modifier.
Finish evidenceTwelve modifier choices and four repaired comparative forms.
Teacher Help · Stage 2

Teach one modifier + one comparative form. Contrast “much cheaper” with “much more reliable”; avoid double comparative forms.

Stage 3 · Match strength to evidence

Use the data to justify the size word and prevent an exaggerated recommendation.

5 minutes
STUDENT TASK
Evidence riskUnsafe claimPrecise repair
small gap exaggeratedA is far faster: 45 vs 43 minutes.A is slightly faster by two minutes.
direction reversedCosts are lower: ฿15k vs ฿12k.Costs are ฿3,000 higher.
percent vs pointsrose by 5%: 70% to 75%rose by 5 percentage points
criterion hiddenB is much better.B is far more reliable, with 98% uptime.
  1. Audit eight claims against a small option table.
  2. Repair the modifier, direction, unit or criterion where needed.
  3. Add the exact number after four comparison claims.
  4. Separate percentage change from percentage-point change.
  5. Explain which difference matters most for the decision and why.
Check the evidence test

A precise comparison identifies the criterion, keeps the direction correct and makes the strength proportionate to the data and decision context.

Finish evidenceEight evidence-checked claims and one prioritised decision criterion.
Teacher Help · Stage 3

Score truth before fluency. Ask “compared with what?”, “in which unit?” and “how large is the practical difference?” whenever a claim sounds stronger than the evidence.

Stage 4 · Listen for difference, data and priority

Recover the modifier, comparison criterion and recommendation logic.

5 minutes
STUDENT TASK
American English

Large difference

Listen for a large difference and supporting data.

Australian English

Small difference and recommendation

Listen for a small difference, priority and recommendation.

PassRecordQuestion
1 · Claimoption + criterion + modifierWhat is being compared?
2 · Datanumber + unit + baselineDoes the evidence support it?
3 · Decisionpriority + recommendationWhy does this difference matter?
  1. Listen once and record the recommended option in each clip.
  2. Listen again and recover the modifier, criterion and supporting number.
  3. Judge whether the difference is large, small or context-dependent.
  4. Retell each comparison with the other option as the grammatical subject.
Finish evidenceTwo comparison maps, two evidence checks and two direction-preserving reformulations.
Teacher Help · Stage 4

The clips are short retrieval models in two accents. Replay as needed, but require criterion and data—not only the modifier—before accepting the recommendation.

Stage 5 · Plan an evidence-based option recommendation

Compare two options across three criteria and rank the difference that matters most.

5 minutes
STUDENT TASK
Planning moveRequired noteLanguage choice
option and purposewhat decision is neededWe need to choose…
three criteriacost, time, quality or riskA is much/slightly… than B
supporting datanumber and unitby… / at… compared with…
prioritymost decision-relevant differenceThe main advantage is…
recommendationoption + limitation + reasonI recommend… although…
  1. Choose two realistic products, services, plans or routes.
  2. Record comparable data for three criteria.
  3. Use all four modifiers across accurate large and small differences.
  4. Rank the most important criterion and explain its practical impact.
  5. Prepare one recommendation and acknowledge one limitation.
Finish evidenceA three-criterion option map using four modifiers and one balanced recommendation.
Teacher Help · Stage 5

Require comparable units and a clear decision purpose. A recommendation should follow the learner’s stated priority, not simply the option with the most advantages.

Stage 6 · Final Practice: compare, challenge and recommend

Present a balanced comparison, defend the evidence and improve one over- or under-stated claim.

6 minutes
STUDENT TASK
FINAL PRACTICE

Set decision → compare three criteria → prioritise → recommend → challenge → retry

  1. Deliver a 75–90 second comparison of two options using three criteria.
  2. Use much, far, slightly and a little with accurate comparative forms.
  3. Support every major claim with a number, unit or observable fact.
  4. Recommend one option and acknowledge one limitation.
  5. Your partner challenges one modifier: “Is that really a large/small difference?”
  6. Respond with evidence, receive one MEAN, FORM or USE target and retry the highest-risk claim.
Recommendation model: “Plan A is much cheaper at ฿8,000, while Plan B is slightly faster by three minutes and a little more reliable. The cost difference is far more important for this short project, so I recommend Plan A, although we should allow extra setup time.”

Score the first independent performance

MEAN · MeaningThe listener can identify the size and direction of each difference, supporting data and recommendation priority.
FORM · FormAll four modifiers combine with accurate -er or more/less comparative forms.
USE · Real useThe learner compares two options, answers an evidence challenge and recommends one balanced choice.
0 · Not yetA key direction, unit or modifier makes the recommendation unreliable.
1 · With supportThe comparison works after one modifier, data or priority prompt.
2 · IndependentFour modifiers, three criteria, evidence challenge and recommendation work without a model.

Result: 0–2 Rebuild · 3–4 Developing · 5–6 B1 performance evidence.

Finish evidenceFour comparative modifiers + three evidence-based criteria + balanced recommendation + challenge response + focused retry.
Teacher Help · Stage 6

Score the first independent comparison. Give one target only, then record whether the retry improves data meaning, comparative form or decision usefulness.

Grammar you can use

You can now describe large and small differences with four modifiers, support comparisons with accurate data and recommend one balanced option. Continue through the Dynamic Learning Graph below.

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เชื่อมการเปรียบเทียบอย่างแม่นยำกับเส้นทางการตัดสินใจจากหลักฐานและข้อมูล