Common Core is all about getting your learners to open their minds and think about the why and how. This problem has them thinking about unknown numbers and their relationship with one another when we round and...

Wonder how many pieces of candy a teacher can eat. Pupils watch a video of candy in a bowl as some candy is removed to be eaten and others are added. Learners devise questions about the situation along with estimated solutions. Scholars...

In this activity, students will round fractions and mixed numbers, and then use their rounding skills to estimate sums, differences, products, and quotients.

Problem solving will become a little easier when you understand the concepts of estimation and rounding. Explore how these concepts are used in mathematics and real world applications. Detailed examples and links to related games...