Grade 4 Fall — Persuasive/Argument Writing, Compound-Complex Sentences, Relative Clauses, and Modal Auxiliaries
Lesson 14 55 min eng.g4.f.lesson_14.compound_complex_sentences_set9_part3

Compound-Complex Sentences — IND + COORD + IND + SUB + DEP (and Set-9 Part 3)

Objectives
  • Students produce a compound-complex sentence using FANBOYS + a subordinator.
  • Students learn 3 more Set-9 words (refute, justify, support).
Vocabulary
compound-complexsubordinatorindependent clausedependent clauserefutejustifysupport

Lesson plan

Warm-up

5 min

Children review yesterday's compound-sentence rule and write one compound sentence about their topic.

Teacher moves
  • Affirm comma + FANBOYS
  • Read 2 student examples
  • Bridge to today: 'What if we ADD a dependent clause to that compound?'

Direct instruction

18 min

Today you produce a COMPOUND-COMPLEX sentence — the G4 craft move that distinguishes upper-elementary writing from middle-elementary. Compound-complex = TWO independent clauses (joined by FANBOYS with comma) PLUS AT LEAST ONE dependent clause (introduced by a subordinator: because, although, when, if, since, while, whereas, until, before, after, even though). Common patterns: (1) FRONTED DEP + IND + FANBOYS + IND: 'Although the weather is cold, students still need outdoor recess, AND teachers report better focus afterward.' (2) IND + FANBOYS + IND + EMBEDDED DEP: 'Students focus better, AND teachers approve of recess BECAUSE the AAP study supports it.' (3) IND + EMBEDDED DEP + FANBOYS + IND: 'Students who get outdoor time focus better, AND their afternoon scores improve.' Watch teacher build all 3 patterns and ALSO meet 3 more Set-9 words: REFUTE (push back with a counter-claim — 'I refute the claim that...'), JUSTIFY (explain why something is reasonable — 'I justify my claim with...'), SUPPORT (back with evidence — 'My evidence supports my reason').

Key examples
  • Compound-complex packs claim + reason + evidence into one sentence — a powerful argument move.
    model Pattern 1: 'Although some claim winter is too cold for recess, this study REFUTES that, AND the data supports outdoor play.' Pattern 2: 'Students focus better when they breathe fresh air, AND their afternoon performance JUSTIFIES the cost of supervisors.' Pattern 3: 'The evidence that I have gathered SUPPORTS my claim, AND it convinces my audience.'
    prompt Teacher builds 3 compound-complex patterns and uses all 3 new Set-9 words.
Checks for understanding
  • How many independent clauses in a compound-complex? How many dependent?
  • When does the comma after a fronted dependent clause appear?
Media
M-4-F-GR-14-A Chart
Reproduction of MG-6 at 11x17: 3 worked compound-complex examples (one per pattern) with each part color-coded — IND cla

Reproduction of MG-6 at 11x17: 3 worked compound-complex examples (one per pattern) with each part color-coded — IND clauses red, DEP clauses blue, FANBOYS green, subordinators blue-edge. Comma marks circled. Print-ready, dyslexic-friendly font.

MG-6 Chart
Compound-complex sentence anchor: a labeled diagram of a compound-complex sentence broken into parts. Example: 'Although

Compound-complex sentence anchor: a labeled diagram of a compound-complex sentence broken into parts. Example: 'Although the weather is cold, students still need outdoor recess, and teachers report better focus afterward.' Labels: 'Although the weather is cold' = DEPENDENT (subordinator 'although' + clause, blue underline), 'students still need outdoor recess' = INDEPENDENT 1 (red underline), ', and' = COORDINATOR (FANBOYS, comma + coordinator, green box), 'teachers report better focus afterward' = INDEPENDENT 2 (red underline). Bottom rule: 'Compound-Complex = ≥2 independent clauses + ≥1 dependent clause. Comma before FANBOYS coordinator; comma after fronted dependent clause.' Print-ready 11x17.

M-4-F-VOC-14-A Chart
11x17 anchor showing all 15 Set 9 words in a 3x5 grid; today's 3 (refute, justify, support) highlighted yellow; previous

11x17 anchor showing all 15 Set 9 words in a 3x5 grid; today's 3 (refute, justify, support) highlighted yellow; previous 10 highlighted green; final 2 (position, perspective) shown in grey for next lesson. Print-ready, dyslexic-friendly.

Guided practice

18 min
Tasks
  • Build 4 compound-complex sentences about your topic using each of the 3 patterns at least once.
    scaffold MG-6 anchor; clause-tile kit; sentence frame per pattern
  • Use REFUTE, JUSTIFY, SUPPORT in metacognitive sentences about your essay.
    scaffold Word cards; frame card
Media
M-4-F-GR-14-B Illustration
Reference image of a Grade-4 child's compound-complex sentence with each clause underlined in its color and labeled in t

Reference image of a Grade-4 child's compound-complex sentence with each clause underlined in its color and labeled in the margin (IND 1, DEP, FANBOYS, IND 2). Print-ready 8.5x11.

Formative assessment

3 min
Exit ticket
  • Hand in one compound-complex sentence with all 4 components labeled.
  • Use REFUTE, JUSTIFY, or SUPPORT in one metacognitive sentence.
scoring Both correct = mastery; one = practicing; neither = reteach.

Closure

1 min
Moves
  • Star your strongest compound-complex.
  • Predict: lesson 17 brings final Set-9 words and similes.

Homework

10 min
Tasks
  • Find one compound-complex sentence in a book at home. Identify the 4 parts. Bring tomorrow.

Exercises in this lesson

eng.g4.f.ex_27
Build 3 compound-complex sentences about your topic. Use 3 different patterns: (1) FRONTED DEP + IND + FANBOYS + IND. (2) IND + FANBOYS...
build compound complex · diff 4
eng.g4.f.ex_28
Match each scenario to Set-9 word: (A) REFUTE, (B) JUSTIFY, (C) SUPPORT. Scenario 1: 'I gave evidence that backs my reason.' Scenario 2:...
tier2 part3 match · diff 2

Differentiation

Scaffolds
  • Clause-tile kit color-coded (red IND, blue DEP, green FANBOYS)
  • Sentence frame per pattern
  • Partner whisper-rehearsal
Extensions
  • Build a compound-complex with TWO dependent clauses.
  • Identify compound-complex sentences in Kwame Alexander's verse novels.
  • Embed a relative clause inside the dependent clause.
English Learners
  • Bilingual MG-6 anchor
  • Clause-tile in home language overlaid
  • Cognate notes on coordinators/subordinators
Ieps 504s
  • Reduced target: build 2 of 3 patterns
  • Tile-only — no paper
  • Adult scribe

Teacher notes

Compound-complex sentences are the syntactic high-water mark of G4 craft. Watch for two patterns: (1) children build a long simple sentence and call it compound-complex (counts modifiers as clauses); (2) children write a comma-splice with a subordinator (no FANBOYS, just because) and miss the compound layer. The clause-tile kit is essential — children must physically arrange the 4 parts before fluency emerges. By end of week 7, each essay should have AT LEAST one compound-complex sentence (rubric criterion 4). The 3 new Set-9 words feed argument vocabulary.