🧠 Brain Lab · Reasoning

Logical Argument in kindergarten to grade 5

Validity, counterexamples and the difference between true and well-argued. Daily Academy tracks it as its own skill, separately from the 9 others in brain lab, so it can never be averaged away by a subject score.

Check it tonight

After any claim: “could that be true and your reason still be wrong?”

What to watch for

Right answers defended by reasons that would defend a wrong one just as well. True and well-argued are different properties, and only one of them transfers.

Real logical argument questions from the library

2 activities currently target this skill. These are actual questions, shown at the difficulty they are served at, with the explanation a child sees after answering.

Difficulty 5.1 — mid grade 5
All robins are birds. All birds have feathers.
Which of these must be true?
Hint shown after a miss: Follow the chain in the direction the sentences point.
Explanation: Robin → bird → feathers, so robins have feathers. The other two options run the chain backwards, which the sentences never license.
Difficulty 5.2 — mid grade 5
A student asks everyone in the school band whether music should get more class time. Ninety-five per cent say yes. She reports that ninety-five per cent of the school agrees.
What is wrong with the report?
Hint shown after a miss: Who did she not ask, and would they have answered the same way?
Explanation: The band is not a small copy of the school; it is the part of the school that already likes music most. Who gets asked decides the answer more often than what gets asked does.
Difficulty 5.4 — mid grade 5
"All cats have four legs. My dog has four legs. Therefore my dog is a cat."
What is wrong with this argument?
Hint shown after a miss: The rule says cats have four legs. Does it say only cats do?
Explanation: "All cats have four legs" rules out a three-legged cat and nothing else. Reversing it is the same error as assuming everyone with a medal finished the race.

The other 9 skills in Brain Lab

Each one is estimated separately, which is what lets the parent dashboard name a specific gap rather than report a subject average.

Sequencing“What would go wrong if you put your boots on before your socks?”PatternsShow a pattern: “what’s the rule?” — not “what comes next?”ClassificationSort four things by an unstated rule and ask which one does not belong — and why.Spatial Reasoning“If you turn this shape a quarter turn, what does it look like?”DeductionGive two clues about three things and ask what must be true.StrategyIn any game: “what are you going to do after that?”Algorithms“Tell me how to draw a square — and I will do exactly what you say, nothing else.”Counting & Arrangements“Three shirts and two pairs of pants — how many outfits, without listing them?”Systems ThinkingAbout any rule they propose: “if everyone did that, what happens next?”

Common questions

How do I know if my child has logical argument secure?

After any claim: “could that be true and your reason still be wrong?” Right answers defended by reasons that would defend a wrong one just as well. True and well-argued are different properties, and only one of them transfers.

Which grade is logical argument taught in?

It appears in both. Daily Academy does not gate skills by year group — a child is placed on a continuous difficulty scale during a five-minute intake, and logical argument is then served at whatever level they are actually at, adjusted separately from every other skill.

Practice by grade

Grade 2 critical thinking and logic activitiesLogic puzzles for 7 and 8 year olds — patterns, deduction, sorting and spatial reasoning — set at the right difficulty and framed as a game rather than a test.Grade 3 critical thinking and logic activitiesLogic and reasoning practice for 8 and 9 year olds — multi-step patterns, elimination puzzles, spatial reasoning and strategy — adapted to each child’s level.Grade 1 critical thinking and logic activitiesLogic puzzles for 6 and 7 year olds — sequencing, patterns, sorting and two-clue deduction — kept small enough that they measure reasoning rather than memory.Grade 4 critical thinking and logic activitiesLogic puzzles for 9 and 10 year olds — conditional reasoning, systematic counting, nets and multi-step planning — where the first plausible answer is usually wrong.Grade 5 critical thinking and logic activitiesLogic puzzles for 10 and 11 year olds — elimination, systematic counting, and telling a valid argument from a conclusion that happens to be true.Kindergarten logic and thinking activitiesThinking puzzles for 4 and 5 year olds — odd one out, repeating patterns, first, then, last, and two-clue riddles — short enough to be about reasoning rather than memory.

See where your child stands on logical argument

A five-minute intake places them on a continuous scale, and the skill map shows every skill separately from the first week. The daily mission is free.

Start free See the parent dashboard