Learning Goal
Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
**2.NBT.A.1**: Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
a. 100 can be thought of as a bundle of ten tens - called a "hundred."
b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
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2.NBT.A.1: Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
a. 100 can be thought of as a bundle of ten tens - called a "hundred."
b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
What you'll learn
- Explain that each digit in a three-digit number tells how many hundreds, tens, or ones, based on its position (e.g., in 482, the 4 means 4 hundreds, the 8 means 8 tens, and the 2 means 2 ones)
- Represent a three-digit number using base-ten blocks on a place value mat with three columns (hundreds, tens, ones) and write the corresponding expanded form (e.g., 347 = 300 + 40 + 7)
- Demonstrate that 100 is the same as a bundle of ten tens - ten ten-sticks grouped together make one hundred-flat - and explain why this "unitizing" works
- Identify multiples of 100 (100, 200, 300, ... 900) as some number of hundreds with 0 tens and 0 ones, and explain the role of the two zeros
- Read a three-digit number and explain the value of each digit, including numbers with zero in the tens or ones place (e.g., 706 = 7 hundreds, 0 tens, and 6 ones)
Slides
Step through the lesson, or watch it as a narrated video