Joining sentences with AND — building compound sentences

Skills targeted

Objectives

Students join two simple sentences using 'and' to create a compound sentence.
Students capitalize only the first word, not the word after 'and'.

Vocabulary

joincompoundadd

Lesson plan

Warm-up

3 min

Sentence-string game: teacher says two simple sentences ('I have a dog. I have a cat.'); class joins with 'and'.

Teacher moves

Model the joining: 'I have a dog AND I have a cat.'
Notice: lowercase 'i' after 'and'

Direct instruction

8 min

When we have two ideas that go together, we can JOIN them with the little word 'and'. Watch: 'The sun is yellow.' + 'The grass is green.' = 'The sun is yellow AND the grass is green.' Big idea: capital T at the start; LOWERCASE t after 'and' (because the joined sentence is still one sentence, not two).

Key examples

One sentence, joined.

model 'My mom is tall and my dad is funny.'

prompt Join: 'My mom is tall. My dad is funny.'
Capital only at the very start of the whole sentence.

model Lowercase, because it's the SAME sentence — just joined.

prompt What letter starts the second part? (lowercase m).

Checks for understanding

Join these: 'Cats meow. Dogs bark.'
Where's the capital? (start)
Is there a capital after 'and'? (no)

Media


        M-K-S-GR-08-A

Illustration Physical / non-image

Anchor chart 'Joining with AND'. Top: two separate sentence strips ('The sun is yellow.' and 'The grass is green.') with arrows pointing down. Middle: an 'AND' card in the center. Bottom: one combined strip 'The sun is yellow and the grass is green.' The capital T at start is circled green; the lowercase t after 'and' is circled yellow with a note 'lowercase!'. Footer: 'One sentence, joined by AND.'

Guided practice

13 min

Tasks

Sentence-strip joining: use scissors and tape to physically join two strips with an 'and' card.

scaffold Pre-printed strips; teacher demonstrates.
Write a compound sentence about two things you like.

scaffold Frame: 'I like ___ and I like ___.'
Watch out for run-ons: try joining FIVE simple sentences. Discuss why that's too many.

scaffold Teacher writes: 'I like cats and I like dogs and I like fish and I like birds and I like bugs.' Discuss: too many ANDs in a row = run-on.

Media


        M-K-S-GR-08-B

Chart

Two-panel chart. Top panel labeled 'GOOD COMPOUND': 'I like cats and I like dogs.' (smiley). Bottom panel labeled 'RUN-ON': 'I like cats and I like dogs and I like fish and I like bugs and I like trees.' (worried face). Caption: 'Two parts joined by AND is good. Five parts joined by AND is a run-on — break it up.'

Formative assessment

2 min

Exit ticket

Write a compound sentence using 'and' about two foods you like.
Self-check: capital first letter? Period at the end? Lowercase after 'and'?

scoring All three checks = mastery; missing one = practicing; missing two+ = reteach.

Closure

Moves

Chant: 'Capital, lowercase, capital, lowercase — only one capital per sentence!'

Homework

5 min

Tasks

At dinner, listen for someone saying a compound sentence with 'and'. Report tomorrow.

Exercises in this lesson

eng.gK.s.ex_13 Join: 'I have a cat. I have a dog.'	oral compound · diff 2
eng.gK.s.ex_14 Write a compound sentence using AND about two foods you like.	write compound · diff 4

Differentiation

Scaffolds

Pre-built strip pairs
Reduce to oral joining
Adult co-writes

Extensions

Try joining with BUT instead of AND
Write a 3-part compound sentence: 'I like X and Y and Z' (then discuss whether this works)
Find a compound sentence in a class book

English Learners

Bilingual conjunction posters
Translation of 'and' in home languages — note that some languages don't use a separate 'and' word

Ieps 504s

AAC
Reduce to oral compound construction

Teacher notes

This is the kindergartner's first encounter with compound sentence structure. The lowercase-after-and rule is the trickiest — many children will inappropriately capitalize. Plan to revisit the rule for the next 4 weeks during workshop conferences.