Glow Math & Logic · Lesson 01
One rule is not enough
Evaluate the second condition after a first successful match. Explore a model, explain the relationship, and try it with physical materials.
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Grade 2 Sorting Studio lessons
Ten Grade 2 lesson drafts for exploring sorting studio through models, conversation, and hands-on practice. Try three complete free sample lessons. A paid adult account opens all teaching guides, printable PDFs, and learning tools.
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Glow Math & Logic · Lesson 02
Same shape, different destinations
Reason about classification independent of superficial similarity. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 03
Necessary conditions for Both
Name conditions that every intersection member satisfies. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 04
Exclusion is a decision
Explain why Neither is a valid region rather than a discard pile. Explore a model, explain the relationship, and try it with physical materials.
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Audit the whole diagram
Verify a classification with an exhaustive item-by-item method. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 06
Explain the nine-tile total
Reconcile regional counts with set counts and the total collection. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 07
Predict a change before moving
Compare a counterfactual rule with the original classification. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 08
Diagnose a sorting argument
Correct the reasoning behind a placement rather than its location alone. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 09
Equivalent representations of two rules
Show that a Venn arrangement and a two-way table encode the same decisions. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 10
One counterexample is sufficient
Explain why a single contrary tile defeats an every claim. Explore a model, explain the relationship, and try it with physical materials.
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