Both parts belong to the whole
Describe covered and uncovered amounts as complementary parts. 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 73–84
Describe covered and uncovered amounts as complementary parts. Explore a model, explain the relationship, and try it with physical materials.
Reason about how much is needed to complete a fixed whole. Explore a model, explain the relationship, and try it with physical materials.
Use sixth sectors as a common comparison unit. Explore a model, explain the relationship, and try it with physical materials.
Justify equality of shares rather than counting pieces only. Explore a model, explain the relationship, and try it with physical materials.
Connect one half with three equal sixth pieces. Explore a model, explain the relationship, and try it with physical materials.
Explain a combined amount with a common visible unit. Explore a model, explain the relationship, and try it with physical materials.
Link a fixed whole in an area model with the matching bar. Explore a model, explain the relationship, and try it with physical materials.
Distinguish a unit fraction from repeated copies of it. Explore a model, explain the relationship, and try it with physical materials.
Explain why equal fractions of unequal wholes differ in amount. Explore a model, explain the relationship, and try it with physical materials.
Relate the size of a unit share to the number filling a whole. Explore a model, explain the relationship, and try it with physical materials.
Name both complementary amounts without changing the whole. Explore a model, explain the relationship, and try it with physical materials.
Predict the missing fraction before placing pieces. Explore a model, explain the relationship, and try it with physical materials.