Thinking Summary · 1
MasteredEquation Logic: .
[Discovery] You have 2 units of hr. How many hr is that?
1
Active StepWelcome to "Dough Length Converter", a 4th Grade Unitconversion mission at the Seedling (entry-level) level, staged in our bakery scenario. The mission opens with a hands-on prompt: "You have 2 units of hr. How many hr is that?" You'll reason about the numbers 2, 1, 60 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: 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. If you get stuck on "Dough Length Converter", 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 2 units of hr. How many hr is that?
1
Active StepEverything you need to know about the Socratic experience.
You have 2 units of hr. How many hr is that? Hint: The starting amount is 2 hr.
Which is longer: 1 hr or 1 min? If you get stuck, the adaptive hint is: hr > min.
Seedling missions anchor the visual model with small, friendly numbers — ideal as the first attempt at this topic. Within 4th Grade Unitconversion, expect numbers in the corresponding range.
Mixing units in the same calculation. Convert everything to ONE unit before adding or comparing. 1 m + 50 cm = 100 cm + 50 cm = 150 cm.
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.
Inquiry-based learning starts with a question, not a formula — students explore, hypothesize, and verify before being told the rule. In Inquiry AI, every mission opens with a "Discovery" step (manipulate the model), then "Abstraction" (write the equation), then "Reflect" (apply to a new case). The procedure is never given upfront; learners derive it from their own observations.