English lesson plan · 9th grade (Year 10 in England) · 45 minutes
Colons and dashes before an explanation or list (SAT)
Punctuation
CCSS L.9-10.2.BCCSS L.11-12.2England: SAT Standard English Conventions (Boundaries)England: ACT English
Objective and success criteria
Students will: Colons and dashes before an explanation or list (SAT).
- I can answer questions on today's skill on my own, without help.
- I can explain each step and say why it works.
- I can check my answer and spot a mistake.
Before and after
Needs first: When is a colon correct?; Dashes and ellipses for effect
Leads to: Matching pairs: comma–comma, dash–dash, bracket–bracket (SAT); Punctuating such as, including and supplements (SAT)
Materials: Punctuation cards, A short unpunctuated text, Highlighters, Mini whiteboards, A short model text on the board, Printed student sheet (below).
Warm-up · 5 min
- Quick retrieval from earlier learning (When is a colon correct?; Dashes and ellipses for effect). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
- Is this sentence correct? My favourite subjects are art, music and science. (yes, it is correct / no, it is not correct) → yes, it is correctPrompt: Cover everything after the colon. Is what's left a complete sentence?
- Which sentence uses punctuation correctly? • My favourite: subjects are art, music and science. • My favourite subjects are: art, music and science. • My favourite subjects: are art, music and science. • My favourite subjects are art, music and science. (My favourite: subjects are art, music and science. / My favourite subjects are: art, music and science. / My favourite subjects: are art, music and science. / My favourite subjects are art, music and science.) → My favourite subjects are art, music and science.Prompt: Cover everything after the colon. Is what's left a complete sentence?
- There was only one thing he feared – the dark. What does the dash do here? (It shows missing letters. / It adds emphasis to the final words. / It joins a prefix to a root word. / It marks the start of speech.) → It adds emphasis to the final words.Prompt: Read the sentence aloud. Where do you pause?
Hook · 5 min
- Read a short passage with no punctuation and let the class hear why it's confusing.
- Share the objective: Colons and dashes before an explanation or list (SAT). Read the success criteria together.
I do: model it · 10 min
- Work through the example out loud, saying why you do each step, not just what you do.
- Example: What punctuation (if any) belongs at [?] The answer was simple [?] practise every day.
- Step 1: A colon (or a single dash) after a complete clause introduces an explanation or list; paired commas or paired dashes must match.
- Step 2: Clause + explanation: colon.
- Step 3: So the answer is: :
- Answer: :
- Pause after each step and ask a student to say what comes next.
We do: guided practice · 10 min
- Do these together. Students try each step on whiteboards before you reveal it.
- Use the hints as prompts rather than giving the answer.
- What punctuation (if any) belongs at [?] Ana packed everything she needed [?] a tent, a stove, two maps and a first-aid kit. (: / ; / no punctuation) → :Prompt: Is everything BEFORE [?] a complete sentence? If not, don't use a colon.
- In which sentence does [?] need this: no punctuation? (The festival offers three things [?] music, food and fireworks. / Ana packed [?] a tent, a stove, two maps and a first-aid kit. / Only one player had scored in every match [?] Lina Moreno.) → Ana packed [?] a tent, a stove, two maps and a first-aid kit.Prompt: Is everything BEFORE [?] a complete sentence? If not, don't use a colon.
You do: independent practice · 10 min
- Students work on the student sheet. Circulate and check the first two answers of every student early.
- Students who finish: write a question of their own for a partner, with the answer.
The 8 questions are on the student sheet below, with answers in the key.
Exit ticket · 5 min
- Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
- In which sentence does [?] need this: —? (The festival offers [?] music, food and fireworks. / Ana packed everything she needed [?] a tent, a stove, two maps and a first-aid kit. / The scientist — who had worked on the project for a decade [?] finally published her results.) → The scientist — who had worked on the project for a decade [?] finally published her results.Prompt: Is everything BEFORE [?] a complete sentence? If not, don't use a colon.
- What punctuation (if any) belongs at [?] Ana packed [?] a tent, a stove, two maps and a first-aid kit. (: / ; / no punctuation) → no punctuationPrompt: Is everything BEFORE [?] a complete sentence? If not, don't use a colon.
Watch out for
- Using commas where a full stop (period) is needed.
- Putting apostrophes in plurals (apple's).
Support and stretch
Support
- Review first: When is a colon correct?.
- Use concrete materials: punctuation cards.
- Give the first step of each question, or a partly worked example to finish.
- Pair with a confident partner for the guided practice.
Stretch
- Move on to: Matching pairs: comma–comma, dash–dash, bracket–bracket (SAT); Punctuating such as, including and supplements (SAT).
- Explain a common mistake in writing and how to fix it.
- Write a word problem that uses today's skill, then solve a partner's.
Homework and more practice
Free online practice with hints and printable worksheets for this skill: eurekami.com/english/grade-9.
Free lesson plan from eurekami.com/lesson-plan-builder