Glow Math & Logic · Lesson 10
Why rows plus columns is wrong
Distinguish two dimensions from the number of occupied cells. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
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Make a model.
Find a connection.
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Glow Math & Logic · Lesson 01
Interpret a product
Connect both factors with their roles in an array. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 02
The equal-group assumption
Explain why an unequal collection is not one repeated product. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 03
Commutativity in the picture
Justify a turned array as a model of equal products. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 04
One more group
Derive a product by adding one complete row. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 05
One more in every group
Derive a product by adding one complete column. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 06
From repeated addition to a product
Connect additive and multiplicative descriptions. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 07
Division as equal sharing
Solve for unknown group size and check with multiplication. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 08
Division as finding groups
Solve for unknown group count and distinguish it from group size. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 09
Distribute over a partition
Explain a product as the sum of two row-group products. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 10
Critique a factor-sum argument
Use the meaning of factors to correct an invalid total. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroomGlow Math & Logic · Starter guide
Two rows, three in each
Distinguish the number of equal groups from the amount in each group, and connect both to a total.
Equal GroupsTeacher-led starter
PDF · Paid classroom