Mixing juice while working with fractions.

Working with story problems.

Which city had the greatest percentage increase in population? 

Two speakers have different ways to divide fractions. Which one is right?

Determining how many and at what price folders were sold.

Determining the greatest number of pizzas that the class can purchase.

Using different combinations of coins.

Solving problems using different coin valuations.

Solving problems with a broken calculator! 

Solving problems without using any kind of computational algorithm.