Problem 6 · The Stained-Glass WindowOnly the worksheet will be included when you print.
MathJewels.com
Name
Date

The Stained-Glass Window

Total reward 2 jewels

In Minecraft, a portal-room window is divided into 8 equal glass panes. At first, 3 panes are purple and 5 panes are clear. Alex changes 2 clear panes to purple.

  1. What fraction of the window is purple at first?

    Reward 1 jewel
  2. What fraction of the window is purple after Alex changes the 2 panes?

    Reward 1 jewel

For each fraction, explain what the numerator and denominator count.

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Teacher & family guide

Difficulty & skills

Grade 3 · Number and operations · Fractions and decimals

MJ 3.4 · C2 · W1

MathJewels rates content readiness, problem-solving challenge, and workload separately. These estimates describe the easiest reasonable solution path and do not reveal the solution.

Content level

MJ 3.4

Grades 3–5

Grade 3 progression · point 4

Likely range
MJ 3.1–3.7
Confidence
86%

Challenge

C2 · Standard

The solver chooses and coordinates familiar methods.

  • Method selection1
  • Reasoning depth2
  • Novelty0
  • Constraint management1
  • Proof or justification1

Workload

W1 · Light

A short response with only a few steps.

Active time
2–6 minutes · typically 4
Response
Short Explanation
Known-method steps
4
  • Mechanical execution1
  • Written output1
  • Representation production1
  • Bookkeeping0

Learning focus

Skills this problem practices

What a successful response demonstrates, with each skill’s share of the content rating.

  • Represent a fraction of a whole

    Name a fraction by identifying how many equal parts form the whole and how many of those parts are selected.

    • Independent mastery
    • 100% focus
    • MJ 3.4 milestone

Readiness

Helpful prerequisites

Skills the rating assumes are already available to the learner.

  • Add and subtract quantities

    Combine and compare whole-number quantities in contextual problems and use addition or subtraction to find an unknown result.

    • Fluent readiness
    • Required
    • MJ 3.2 milestone

Up next

Minecraft challenge 4 of 6