Glow Math & Logic · Lesson 08
How many groups can we make?
Solve a grouping problem with a known group size. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroomGlow Math & Logic · Open lesson previews
Make a model.
Find a connection.
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Glow Math & Logic · Lesson 09
Split the picture, keep the whole
Partition an array in a drawing and recombine its parts. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 10
Explain an incorrect total
Critique addition of dimension labels as a counting method. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 01
Read an array precisely
Describe rows and equal quantities as two separate counts. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 02
Test the equal-group condition
Identify when a repeated-addition model no longer applies. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 03
Two repeated sums for one array
Connect row and column views with equivalent totals. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsDiscover
PDF · Paid classroomGlow Math & Logic · Lesson 04
Add a row efficiently
Derive a new array total from a known one. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 05
Add a column efficiently
Explain the total change when every row grows. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 06
Arrays as equal addends
Write and justify a repeated-addition expression. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 07
Partition a set into equal shares
Use an array to reason about equal group size. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsConnect
PDF · Paid classroomGlow Math & Logic · Lesson 08
Measure out fixed-size groups
Find the number of groups composing a known total. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroomGlow Math & Logic · Lesson 09
Decompose an array on paper
Connect partial arrays with additive recombination. Explore a model, explain the relationship, and try it with physical materials.
Equal GroupsStretch
PDF · Paid classroom