Glow Math & Logic · Lesson 04
Midpoint and total distance
Explain a midpoint as half the endpoint distance. Explore a model, explain the relationship, and try it with physical materials.
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Make a model.
Find a connection.
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Glow Math & Logic · Lesson 05
A plausible wrong location
Diagnose a one-interval error in a placement method. Explore a model, explain the relationship, and try it with physical materials.
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PDF · Paid classroomGlow Math & Logic · Lesson 06
Measure a gap between locations
Connect two positions with their difference. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 07
Relate addition and a return trip
Interpret opposite movements as inverse changes. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 08
Defend a placement twice
Reconcile the distances to both endpoints. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 09
Equal parts of one unit
Explore a re-partitioned fraction line as supported enrichment. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 10
A scale-aware explanation
Explain a fractional position using its displayed interval size. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 01
Fractions are numbers on a line
Locate a fraction by iterating the displayed unit fraction. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 02
Neighbors in fractional units
Name adjacent marked fractions on the same partition. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 03
Compare neighboring fractions
Use a common whole and common denominator to justify order. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 04
Halfway is a relationship
Justify one half by equal distances to zero and one. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 05
The zero-tick trap
Diagnose an interval-counting error in fractional placement. Explore a model, explain the relationship, and try it with physical materials.
Number Line TrailsConnect
PDF · Paid classroom