In this lesson plan, students will use base ten blocks and a place value chart to show their understanding of two-digit and three-digit numbers. They will also use place value to compare numbers.

This is a complete lesson with instruction and varied exercises, explaining how the place value system works with decimals that have one decimal digit, and how to write such decimals in expanded form.

Using base ten blocks and place value, 2nd graders explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.

Learners explore connections between addition, subtraction, and multiplication. In addition, learners review place value and learn about the distributive law. The lesson plan includes an overview and a lesson plan toolkit.

This lesson builds a foundation for adding larger numbers which is supported by the Common Core standards for second grade.

Using dimes to make change is another way to work with subtracting tens within 100.

Second graders need practice using coins and dollars and relating them to ones, tens and hundreds. Common Core standards include counting by 10s and 100s.

This interactive lesson focuses on using what you know about number lines and rounding from the tenths place to make decimals whole numbers and then asks you to explain your reasoning to show comprehension.

In order to help children understand what numbers mean, it is helpful to teach them how to compare and order them. This site provides lesson plans, tips & tricks, and frequently asked questions. It's concise and easy to understand.