Thinking Summary · 1
MasteredEquation Logic: .
[Discovery] You have 6 units of kg. How many kg is that?
1
Active StepWelcome to "Flour Kilogram Lab", a 4th Grade Unitconversion mission at the Explorer (core) level, staged in our bakery scenario. The mission opens with a hands-on prompt: "You have 6 units of kg. How many kg is that?" You'll reason about the numbers 6, 1, 1000 across 3 guided steps.
Behind the bakery story, this lesson is really about unitconversion aligned to CCSS 4.MD.A.1. Know relative sizes of measurement units within one system; convert from a larger unit to a smaller unit. The key strategy this mission asks you to internalise: Bigger unit → smaller unit means multiply.
A general pattern to watch for in 4th Grade unitconversion — illustrated with example numbers below, which may differ from this lesson's: Going the wrong way (dividing when you should multiply). Bigger unit → smaller unit = multiply (more pieces). Smaller → bigger = divide (fewer pieces). If you get stuck on "Flour Kilogram Lab", the adaptive Socratic hints below escalate from a gentle nudge to a worked-out strategy — the same way a one-on-one tutor would coach you through it.
Grade 4 · Unitconversion
Mission Progress
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Thinking Summary · 1
MasteredEquation Logic: .
[Discovery] You have 6 units of kg. How many kg is that?
1
Active StepEverything you need to know about the Socratic experience.
You have 6 units of kg. How many kg is that? Hint: The starting amount is 6 kg.
Which is longer: 1 kg or 1 g? If you get stuck, the adaptive hint is: kg > g.
Explorer missions hit the core abstraction at typical numeric ranges — this is where conceptual mastery is built. Within 4th Grade Unitconversion, expect numbers in the corresponding range.
Confusing 1 m = 100 cm with 1 m = 10 cm. Memorise the table. Better yet, look at a metre stick — count the cm marks: there are 100.
Conversions (Grade 5 extends to cross-system (e.g., km ↔ miles).). Open /grade-4/conversions to start that topic's missions.
Yes. Every mission, handbook page, and topic hub is mapped to a specific CCSS code (visible in the page header). The curriculum follows the CCSS coherence map: Grade 1 number sense → Grade 3 multiplicative thinking → Grade 6 ratio reasoning, with each grade building strictly on the prior year's foundations.
Pure discovery is inefficient — kids hit a wall and quit. Guided Discovery scaffolds the path: a careful sequence of questions, models, and adaptive hints leads the learner toward the insight without revealing it. Inquiry AI's hint system fires automatically after ~15s of hesitation or on the first mistake, escalating from a Socratic nudge to a worked example only when needed. Mistakes are diagnosed via "misconception keys" so the hint matches the actual wrong-thinking pattern.