Grade 4 age 9–10

What your child practises here in Grade 4, with a real lesson and question from each subject.

Grade 4 math here is fractions and decimals. Not here yet: multiplying and dividing big numbers, measuring, time, among others. When your child has learned these, the level moves up. Use it alongside what the school sends home. See the detail

  • A short lesson first
  • Worksheets of 20 to 25 questions, in rounds of 5 or 6
  • Learned means 3 in 4 right, on two different days

Math

Fractions and decimals: naming them, equal fractions, adding and subtracting.

From the lesson · Equivalent fractions

Simplify 4/6.

4/62/3
  1. Find a number that divides into both 4 and 6. Both divide by 2.
  2. Divide the top by 2: 4 ÷ 2 = 2.
  3. Divide the bottom by the same 2: 6 ÷ 2 = 3.

Answer: 2/3

Then questions like this one

Which fraction is equal to 1/2?

A2/3B3/6C6/3D1/4

What Grade 4 math practises here

  • Fractions as partsnaming a fraction from a shaded shape or a set
  • Equivalent fractionsrecognising and generating equivalent fractions, and simplifying
  • Adding & subtracting fractionsadding and subtracting fractions, like then unlike denominators
  • Decimal place valuetenths and hundredths, reading and comparing decimals
  • Adding & subtracting decimalsadding and subtracting decimals lined up by place value
  • Fractions and decimals togetherconverting between simple fractions and decimals

Not here yet

Multiplying and dividing big numbers, measuring, time, money, angles, area, graphs, and reading and writing numbers past 100.

Most schools teach these this year too. Until they are here, use what your school sends home for them.

Try 5 Grade 4 math questions

English

Parts of speech, verb tenses, and finding the main idea.

From the lesson · Main idea

'Otters were once common on this river. Pollution drove them away. The water is clean again now, and otters have started to return.' What is the main idea?

  1. Read each sentence and ask what it is doing. The first says how things were, the second what went wrong, the third what has changed.
  2. Test a detail against the whole: 'pollution is harmful' is true and covers only the middle sentence, so it is not the main idea.
  3. Ask what changed between the first sentence and the last. The passage is the story of otters leaving a dirty river and coming back to a clean one.

Answer: otters have come back to the river now that the water is clean again

Then questions like this one

'Bees visit flowers to collect nectar. As they feed, pollen sticks to them and travels to the next flower. Without bees, many crops would not grow.' What is the main idea?

ABees are dangerousBBees help plants reproduceCFlowers are colourfulDNectar tastes sweet

What Grade 4 English practises here

  • Parts of speechdistinguishing nouns, verbs, adjectives and adverbs
  • Pronounschoosing correct pronouns and identifying what they refer to
  • Verb tensespast, present and future tense consistency
  • Main ideaidentifying the main idea of a short passage
  • Supporting detailsfinding details that support the main idea
Try 5 Grade 4 English questions

AI literacy

Training and testing, how chatbots write, asking clear questions.

From the lesson · How chatbots write

A chatbot is asked who invented the bicycle, and names someone confidently, with a date. Why should you still check?

  1. It wrote the answer by predicting likely words, not by checking a fact.
  2. Sounding confident is just how its words came out.
  3. So check the name and the date in a trusted source.

Answer: because sounding sure is not the same as being right

Then questions like this one

How does a chatbot write its answers?

Ait predicts likely next words from patterns in textBit looks up the answer in a big book of factsCa person types each answer very quicklyDit thinks about your question like a person

What Grade 4 AI literacy practises here

  • Training & testingwhy a model is tested on new examples it did not learn from, and what a test result does and does not tell you
  • Measuring accuracyworking out how often a model was right from simple counts, written as so many out of 10 or out of 100 (18 right out of 20 is 9 out of 10) — not as per cent, which comes in Grade 5 once the math course has taught it — and comparing two models fairly on the same test
  • When data leaves people outhow missing or one-sided training data makes an AI work worse for some people or situations, which is called bias
  • How chatbots writechatbots write by predicting likely next words from huge amounts of text, which is why they can sound sure of themselves and still be wrong; and a chat is not private like a diary: what you type or upload may be stored, read by people and used for training, so no photos of friends or family without asking, and many AI apps have a minimum age
  • Asking clear questionswriting clear, specific requests (prompts) that give the context and say what kind of answer is wanted, improving a vague one, and asking an AI helper to explain, give a hint or quiz you rather than do your schoolwork for you, within your teacher's rules
Try 5 Grade 4 AI literacy questions

Not sure Grade 4 is right?

Each grade here practises the main topic most schools teach that year. It is not everything your child's school covers. Grades are a guide, not any province's program, so a short warm-up checks your child's level first, in each subject: a child can be in one grade for English and another for math. The level moves up as they learn.

Grade 3age 8–9Math Times tables from 2 to 10, division facts, choosing × or ÷ in word problems.English Plurals, punctuation, apostrophes, and the order of events.AI Sorting into groups, recommendations, and person or machine.Grade 5age 10–11Math Ratios, percentages (including discounts), negative numbers.English Synonyms and antonyms, kinds of sentences, words in context.AI Predictions, AI that creates, and checking what AI says.

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