Description

What our Expanded Number Forms lesson plan includes

Lesson Objectives and Overview: Expanded Number Forms teaches students how to convert standard numbers into expanded form. Expanded form turns standard numbers into an addition sentence with each number expressed using its place value. At the end of the lesson, students will be able to create addition expressions to show the expanded number form. This lesson is for students in 2nd grade and 3rd grade.

Classroom Procedure

Every lesson plan provides you with a classroom procedure page that outlines a step-by-step guide to follow. You do not have to follow the guide exactly. The guide helps you organize the lesson and details when to hand out worksheets. It also lists information in the blue box that you might find useful. You will find the lesson objectives, state standards, and number of class sessions the lesson should take to complete in this area. In addition, it describes the supplies you will need as well as what and how you need to prepare beforehand.

Options for Lesson

Included with this lesson is an “Options for Lesson” section that lists a number of suggestions for activities to add to the lesson or substitutions for the ones already in the lesson. If you’d like to expand on the lesson activity, you could have your students cut out their own page of disks to keep for practice at home. For an additional activity, you could create a matching game where students must find the standard and expanded forms of a number to get a match. Finally, you could have students practice place value with a place value chart before the lesson to review.

Teacher Notes

The teacher notes page includes lines that you can use to add your own notes as you’re preparing for this lesson.

EXPANDED NUMBER FORMS LESSON PLAN CONTENT PAGES

Expanded Number Forms

The Expanded Number Forms lesson plan includes one page of content. Expanded form is one way to write a number. It shows the value of each digit using its place value. It’s an addition expression.

To write a number in expanded form, you first need to place the number’s digits in a place value chart. Next, determine the value of each digit. Finally, write the numbers out as an addition expression. The lesson includes a few examples to illustrate these steps.

The first example shows how to write 1,438 in expanded form. You first write each number in a place value chart. For this number, you write 1 (or 1,000) in the thousands place, 4 (or 400) in the hundreds, 3 (or 30) in the tens, and 8 in the ones. Then, you write it out as an addition equation: 1,000 + 400 + 30 + 8.

The lesson includes two more examples. For the number 306, the expanded form is 300 + 6. For the number 10,250, the expanded form is 10,000 + 200 + 50. The more you practice, the easier it will get to write numbers in expanded form!

EXPANDED NUMBER FORMS LESSON PLAN WORKSHEETS

The Expanded Number Forms lesson plan includes three worksheets: an activity worksheet, a practice worksheet, a homework assignment, and a quiz. You can refer to the guide on the classroom procedure page to determine when to hand out each worksheet.

DISKS ACTIVITY WORKSHEET

The activity worksheet asks students to model the expanded forms of different numbers using disks given to them by their teacher.

EXPANDED AND NUMERIC PRACTICE WORKSHEET

For the practice worksheet, students will first write different numbers in expanded form. They will then rewrite expanded form numbers in numeric form.

EXPANDED NUMBER FORMS HOMEWORK ASSIGNMENT

The homework assignment asks students to fill in the blanks by writing numbers in either standard form or expanded form.

QUIZ

This lesson also includes a quiz that you can use to test students’ understanding of the lesson material. For the quiz, students will write numbers in expanded form. They will then rewrite expanded form numbers in numeric form.

Worksheet Answer Keys

This lesson plan includes answer keys for the practice worksheet, the homework assignment, and the quiz. If you choose to administer the lesson pages to your students via PDF, you will need to save a new file that omits these pages. Otherwise, you can simply print out the applicable pages and keep these as reference for yourself when grading assignments.