Glow Math & Logic · Lesson 01
Efficient addition with rods
Explain a strategy for combining two lengths within twenty. Explore a model, explain the relationship, and try it with physical materials.
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Grade 2 Number Trains lessons
Ten Grade 2 lesson drafts for exploring number trains 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
Use a known sum
Derive a related sum from a one-unit change. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 03
Equivalent equations
Justify equality between two expressions using the same units. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 04
Unknown part, known whole
Connect missing-addend and subtraction statements. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 05
Change the grouping, keep the sum
Show why decomposing an addend leaves the total unchanged. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 06
Compensation detective
Track one unit moved between addends and defend equivalence. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 07
Explain a covered part
Represent a subtraction situation without treating hidden units as absent. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 08
Critique the unit choice
Explain why piece count is not a measure of length. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 09
Equal parts make a multiple
Connect repeated addition to a grouping description. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 10
Prove the list is complete
Justify a stopping point in a systematic decomposition list. Explore a model, explain the relationship, and try it with physical materials.
Number TrainsStretch
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