Grades 1 to 5 (Years 2 to 6 in England)
Punctuation fixer
This punctuation fixer shows sentences with missing marks; children tap where each mark goes, choose it, and check, then read why each fix is right. Start with End marks: tap the dot at the end of the sentence and choose a period, question mark or exclamation mark.
What the punctuation fixer does
Each sentence appears with some of its punctuation taken away. Small dots between words are places where a mark could go: tap one and choose the mark from the buttons that appear, or choose No mark. For apostrophes, tap the word itself and small dots appear between its letters; tap the one where the apostrophe belongs.
There are four practice sets. End marks takes away only the final period, question mark or exclamation mark. Commas takes away commas in lists, after yes and no, after a name when you speak to someone, after an opening part, and before but or so when they join two sentences. Apostrophes takes away the apostrophes in contractions like don't and we're and in possessives like Sam's. Mixed takes away everything. Check gives a hint for each problem without fixing it; Show the fixes gives the correct sentence and a reason for every mark.
Why fixing punctuation helps
Punctuation is easiest to learn when children decide where it goes and why, not just copy it. Tapping the exact spot makes them read closely and listen for the pauses, questions and missing letters that punctuation signals. The explanations connect each mark to a rule they can use in their own writing.
Common mix-ups
- Putting a comma wherever you pause. Commas follow rules, such as separating items in a list or coming before but when it joins two sentences.
- Forgetting that a question needs a question mark even when it is short, like "Do you like pancakes?"
- Putting the apostrophe where the two words join. In don't (do not), it takes the place of the missing o, so it goes between n and t, not between do and n.
- Using an apostrophe to make a plural. One cat, two cats; Sam's bike means the bike belongs to Sam.
- Worrying about the comma before and in a list. It is optional: many US writers use it, and this tool accepts it either way.
A 10-minute routine
- Do three sentences in End marks. The child reads each one aloud with the right voice before choosing the mark.
- Do three in Commas. Ask which rule each comma follows before pressing Check.
- Do two in Apostrophes and say each contraction as two words.
- Try one Mixed sentence and fix it using only the hints.
- Finish by writing your own sentence with a comma and an apostrophe.
Where it fits by grade
- Grade 1: use end punctuation (L.1.2.b) and commas to separate single words in a series (L.1.2.c). In England, Year 1 punctuates sentences with full stops, question marks and exclamation marks.
- Grade 2: use an apostrophe for contractions and frequently occurring possessives (L.2.2.c). Year 2 in England covers commas in lists and apostrophes for contractions and singular possession.
- Grade 4: use a comma before a coordinating conjunction in a compound sentence (L.4.2.c). Year 4 in England adds commas after fronted adverbials.
- Grade 5: use commas after an introductory element (L.5.2.b) and to set off yes and no and direct address (L.5.2.c).
Learning more
Commas and apostrophes each have a free topic page on Eurekami with practice and a printable worksheet with an answer key. Both are skills on the skill map, so Daily Practice can bring them back when they start to fade.
Questions people ask
- What are the main end marks?
- A period ends a sentence that tells something, a question mark ends a question, and an exclamation mark ends a sentence that shows strong feeling or a warning.
- Do I need a comma before and in a list?
- It is a style choice. The comma before and is called the serial or Oxford comma. Many US style guides use it, and some leave it out. This tool accepts both.
- What is the difference between a contraction and a possessive?
- A contraction squeezes two words into one, and the apostrophe shows where letters were taken out: do not becomes don't. A possessive shows that something belongs to someone: Ben's mom.
- Why doesn't Check just show me the answer?
- Check gives a hint for each problem so you can fix it yourself. If you are stuck, press Show the fixes to see the correct sentence and the reason for each mark.
More virtual manipulatives
- Virtual fraction bars and fraction circles
- Interactive number line
- Virtual base ten blocks
- Multiplication arrays
- Interactive teaching clock
- Virtual money for counting practice
- Interactive coordinate plane
- Algebra balance scale
- Simple circuit simulator
- States of matter simulation
- Adding fractions with a model
- Virtual algebra tiles
- Alphabetical order game
- Virtual protractor and angle maker
- Animal cell diagram
- Area and perimeter builder
- Build an atom simulator
- Bar graph maker for kids
- Butterfly life cycle
- Capital letters practice
- Circle explorer
- Color mixing simulator
- Compare fractions
- Compound word maker
- CVC word blending
- Day and night simulator
- Decimal grid (hundredths)
- Decimal place value chart
- Digestive system diagram
- Division by sharing and grouping
- Equivalent fractions explorer
- Even and odd numbers
- Interactive factor tree
- Float or sink simulator
- Food chain builder
- Balanced and unbalanced forces simulator
- Dividing fractions
- Multiplying fractions with an area model
- Fraction number line
- Frog life cycle
- Function machine
- Virtual geoboard
- Gravity on other planets simulator
- Homophone picker
- Human body organs diagram
- Parts of the eye
- Human heart diagram
- Human skeleton diagram
- Interactive hundred chart
- Insect body parts
- Virtual integer chips
- Lever and seesaw simulator
- Light reflection simulator
- Line plot maker with fractions
- Linear graph explorer
- Magnets simulator
- Mean, median and mode explorer
- Virtual measuring jug
- Virtual measuring ruler
- Mixed number builder
- Moon phases simulator
- Interactive multiplication chart
- Nets of 3D shapes
- Virtual number bonds
- Interactive open number line
- Parts of a flower
- Parts of a plant diagram
- Parts of a wave diagram
- Parts of speech sorter
- Growing pattern builder
- Pendulum simulator
- Percent bar model
- Interactive periodic table
- pH scale
- Pictograph maker for kids
- Pie chart maker
- Interactive place value chart
- Plant cell diagram
- Plant growth experiment
- Plant life cycle
- Polygon explorer
- Predator and prey simulation
- Probability simulator
- Pulley simulator
- Punnett square simulator
- Pythagorean theorem explorer
- Quadratic graph explorer
- Ratio table and double number line
- Virtual rekenrek (20-bead rack)
- Rounding hill
- Reasons for the seasons simulator
- Sentence builder
- Shadows simulator
- Interactive Sieve of Eratosthenes
- Skip counting frog
- Solar system diagram
- Sound waves simulator
- Speed, distance and time simulator
- Spinner designer
- Syllable counter
- Symmetry mirror
- Synonym and antonym match
- Virtual ten frames
- Interactive thermometer
- Tooth diagram
- Transformations on a coordinate grid
- Two dice sums simulator
- Volume with unit cubes
- Water cycle diagram
- Word builder
- Word families
Keep exploring
Practice these topics
More manipulatives
- Virtual fraction bars and fraction circles
- Interactive number line
- Virtual base ten blocks
- Multiplication arrays
- Interactive teaching clock
- Virtual money for counting practice
- Interactive coordinate plane
- Algebra balance scale
- Simple circuit simulator
- States of matter simulation
- Adding fractions with a model
- Virtual algebra tiles
- Alphabetical order game
- Virtual protractor and angle maker
- Math by topicFractions, times tables, long division and more
- Math by gradeEvery skill from kindergarten to 8th grade
- English and grammarNouns, verbs, commas, spelling and more
- Reading passagesShort stories with read-aloud and questions
- Science by gradePlants, forces, matter, space and more
- Printable worksheetsPrint, or do them on a tablet with a finger or pen
- Free math games3D games where every move is a math question
- Fraction calculatorEvery step shown, from mixed numbers to simplest form
- Math 5-a-dayFive fresh warm-up questions every day
- Guides for parentsHow to help with fractions, tables, tests and more
Math, English and science that click.
