Across a chart row
Maintain the same numerical increase across a visual row boundary. Explore a model, explain the relationship, and try it with physical materials.
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Maintain the same numerical increase across a visual row boundary. Explore a model, explain the relationship, and try it with physical materials.
Describe group count and group size before introducing a symbol. Explore a model, explain the relationship, and try it with physical materials.
Find the number of equal bundles needed for a total. Explore a model, explain the relationship, and try it with physical materials.
Compare a trail with one using doubled group size. Explore a model, explain the relationship, and try it with physical materials.
Connect repeated removal with a backward counting trail. Explore a model, explain the relationship, and try it with physical materials.
Connect equal bundles with repeated increases. Explore a model, explain the relationship, and try it with physical materials.
Justify a next landing using the constant jump. Explore a model, explain the relationship, and try it with physical materials.
Infer an internal landing from neighboring equal jumps. Explore a model, explain the relationship, and try it with physical materials.
Identify where an incorrect trail breaks its rule. Explore a model, explain the relationship, and try it with physical materials.
Use pairing to explain a collection with or without a leftover. Explore a model, explain the relationship, and try it with physical materials.
Explain a row crossing through number relationships. Explore a model, explain the relationship, and try it with physical materials.
Translate equal jumps into repeated addends. Explore a model, explain the relationship, and try it with physical materials.