3.NF.A.3b
Recognize and generate simple equivalent fractions, e.g., `sf (1/2)` = `sf (2/4)`, `sf (4/6)` = `sf (2/3)`. Explain why the fractions are equivalent, e.g., by using a visual fraction model.
Summative Assessment Task
Students determine how much pie is left after four friends have each eaten a piece.
Instructional Tasks/Formative Assessments
Students determine if the boys cut the same amount of their wooden boards.
Using fraction clues, students determine what "half" is.
Students determine if two girls eat the same amount of pizza.
Students determine which friend received a better deal when buying a fraction of a pie.