What does it mean to expand a number? Use this lesson plan to help your students understand how to write the expanded form of two-digit numbers.

Get out those hundred charts! It’s time for students to dive into subtracting multiples of ten.

What’s unique about abbreviations and acronyms? In this lesson, students will learn the mechanics of using abbreviations and acronyms, including how they are similar and different.

Do your students ever want to just hurry and finish their homework? Your students can use the number line jumping strategy to quickly add two-digit numbers and show their understanding of place value and expanded form in the process.