Thinking Summary · 1
MasteredVisual Logic: 0 of 1 parts shaded.
[Discovery] Shade 14/17 on a fraction bar, then add 9/17 more by shading additional parts.
1
Active StepWelcome to "Cake Portion Adder", a 4th Grade Add Fractions mission at the Challenger (stretch) level, staged in our bakery scenario. The mission opens with a hands-on prompt: "Shade 14/17 on a fraction bar, then add 9/17 more by shading additional parts." You'll work with the numbers 14, 17, 9 and arrive at a final answer of 1 across 3 guided steps.
Behind the bakery story, this lesson is really about add fractions aligned to CCSS 4.NF.B.3. Add and subtract fractions with like denominators, including mixed numbers, by joining and separating parts referring to the same whole. The key strategy this mission asks you to internalise: Top: 14 + 9, bottom unchanged.
A general pattern to watch for in 4th Grade add fractions — illustrated with example numbers below, which may differ from this lesson's: Leaving an improper fraction (5/3) as the final answer when a mixed number is expected. 5/3 = 1 2/3. Mixed-number form is usually preferred when the result exceeds 1. If you get stuck on "Cake Portion Adder", 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 · Addfractions
Mission Progress
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Thinking Summary · 1
MasteredVisual Logic: 0 of 1 parts shaded.
[Discovery] Shade 14/17 on a fraction bar, then add 9/17 more by shading additional parts.
1
Active Step