Other Topics


Students play a multiplication game with number cubes to explore the relationship between experimental and theoretical probability.

Ordering Numbers

Students arrange quantities (such as 4/7, 5/8, and 5/9) in order from greatest to least. Each version of the task presents students with different types of quantities (ex: rational numbers, multiplication expressions) allowing you to select (or design!!) the task that matches the content you are teaching.

Addition & Subtraction

Students create different models (e.g., number lines, cubes) for addition & subtraction problem types (e.g., join change unknown).

Multiplication & Division

Students match various multiplication and division story problems to models that represent those problems and then they match each problem & model to the conceptual meaning of multiplication or division (e.g., multiplication as grouping; division as sharing).


Students explore fair sharing and fractions by considering how to divide submarine sandwiches among different numbers of people. The task also invites students to consider how they share food in their families and communities.