Record equal addends
Connect each row with one term in a repeated sum. Explore a model, explain the relationship, and try it with physical materials.
450 lesson drafts and nine original starter guides. Explore number relationships, fractions, sorting, patterns, shapes, and more. Try three complete free sample lessons. A paid adult account opens all teaching guides, printable PDFs, and learning tools.
Choose by readiness and prior teaching. Grade labels are starting points. How to choose a starting point
Showing 373–384
Connect each row with one term in a repeated sum. Explore a model, explain the relationship, and try it with physical materials.
Find the size of equal shares in a small collection. Explore a model, explain the relationship, and try it with physical materials.
Find how many fixed-size groups use a whole collection. Explore a model, explain the relationship, and try it with physical materials.
Describe the whole as one row and the remaining rows. Explore a model, explain the relationship, and try it with physical materials.
Distinguish a dimension label from the total number of counters. Explore a model, explain the relationship, and try it with physical materials.
Interpret both dimensions and count the whole set. Explore a model, explain the relationship, and try it with physical materials.
Justify equal-addend reasoning from equal group sizes. Explore a model, explain the relationship, and try it with physical materials.
Explain an invariant total under a turned array. Explore a model, explain the relationship, and try it with physical materials.
Connect adding a row with adding its group size. Explore a model, explain the relationship, and try it with physical materials.
Track a change distributed across every group. Explore a model, explain the relationship, and try it with physical materials.
Match one addend to each visible row. Explore a model, explain the relationship, and try it with physical materials.
Solve an equal-sharing problem with a known number of groups. Explore a model, explain the relationship, and try it with physical materials.