Classroom Resource

Understanding Place Value

Subject Area

Mathematics

Grade(s)

Overview

A very important concept students learn in first grade is place value. Let's look at the number 13. What does 13 really mean? We can write 13 in a place value chart. Now we see that 13 is 1 ten and 3 ones. But what does "one ten" really mean?

Content Standards

Mathematics (2019) Grade(s): 1

MA19.1.11
Explain that the two digits of a two-digit number represent amounts of tens and ones.

Unpacked Content

Vocabulary

Base ten
Decompose

Knowledge

Students know:

how to decompose numbers 11-19.

Skills

Students are able to:

Use place value models or mental strategies to decompose numbers.

Understanding

Students understand that:

a two-digit number represents amounts of tens and ones.
Ten things can be represented as one ten or as ten ones.

Interdisciplinary Connection(s)

Link to Resource

https://aptv.pbslearningmedia.org/resource/5d8f156a-2625-4754-9c7c-725d06773461…

Content Type / Source

Resource Provider

PBS

Accessibility

License

License Type

CUSTOM

Custom License Type (URL)

https://www.pbslearningmedia.org/help/terms-of-use/#restrictions

Comments or Notes

ALCOS 2019

11. Explain that the two digits of a two-digit number represent amounts of tens and ones.
a. Identify a bundle of ten ones as a “ten.”
b. Identify the numbers from 11 to 19 as composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
c. Identify the numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 as one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

Approved Date

2020-09-08

Curated by

mfrye

Design by Adaptive Theme

Learning Resource Type