Curriculum / Math / 2nd Grade / Unit 4: Place Value with Numbers to 1,000 & Money / Lesson 2
Math
Unit 4
2nd Grade
Lesson 2 of 22
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Lesson Notes
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Model and compose three-digit numbers with hundreds, tens, and ones using base ten blocks.
I can make three-digit numbers using concrete base ten blocks.
The core standards covered in this lesson
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:
2.NBT.A.1.A — 100 can be thought of as a bundle of ten tens — called a "hundred."
2.NBT.A.1.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).
The foundational standards covered in this lesson
1.NBT.B.2 — Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
The essential concepts students need to demonstrate or understand to achieve the lesson objective
Suggestions for teachers to help them teach this lesson
Students will work with concrete manipulatives in this lesson. Allow students to model the numbers as shown as they work on the Target Task and in the problem set.
5-10 minutes
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Tasks designed to teach criteria for success of the lesson, and guidance to help draw out student understanding
15-25 minutes
With base ten blocks make 148.
Draw a model of your number.
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Build three-digit numbers with base ten blocks. Follow the directions for each number.
a. Use 5 ones blocks, 2 hundreds blocks, and 8 tens blocks. This number is __________.
b. Use 5 hundreds blocks, and 8 ones blocks. This number is __________.
c. Use 2 ones blocks, 6 hundreds blocks, and 8 tens blocks. This number is __________.
Tony showed 408 below.
Do you agree or disagree? Explain using evidence from Tony’s model. How would you show 408?
Look at the place value chart.
a. How many hundreds do you see?
b. What number does this represent?
c. If one hundred was added, how many hundreds would there be?
d. What is the new number?
15-20 minutes
A task that represents the peak thinking of the lesson - mastery will indicate whether or not objective was achieved
Write the number that is represented by the base ten blocks.
a.
b.
Daily Word Problems, Warm Ups, and Center Activities are aligned to the content of the unit but not necessarily to the lesson objective, therefore feel free to use them anytime during your school day.
Next
Represent and compose three digit numbers using hundreds, tens, and ones.
Topic A: Understanding and Representing Three Digit Numbers
Compose and represent a hundred.
Standards
2.NBT.A.12.NBT.A.1.A
2.NBT.A.12.NBT.A.1.A2.NBT.A.1.B
2.NBT.A.1
Model and compose three-digit numbers in situations where there are more than 9 tens and ones.
Use unit form to represent three-digit numbers using understanding of place value and base ten.
2.NBT.A.3
Read, write, and represent three-digit numbers in standard form, word form, and unit forms.
Read, write, and represent three-digit numbers using understanding of place value and expanded form.
Read, write, and represent three-digit numbers in all forms.
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Topic B: Reasoning with Numbers to 1000
Use place value understanding to count to 1,000 and reason about three-digit numbers.
2.NBT.A.2
Locate three-digit numbers on a number line.
Skip-count by 5s, 10s, and 100s to find numbers on a number line.
Compare 2 three-digit numbers using a number line.
2.NBT.A.4
Compare 2 three-digit numbers using place value.
Order three-digit numbers using place value knowledge and number lines to explain thinking.
2.NBT.A.22.NBT.A.4
Topic C: Place Value in Action - Money and Word Problems
Understand the value of dimes, nickels, and pennies.
2.MD.C.8
Use counting to find the value of groups of dimes, nickels, and pennies.
2.MD.C.82.NBT.A.2
Understand the value of quarters and find the value of coin collections.
Understand the value of 100 cents and 1 dollar.
Make change from a dollar and make a dollar with coins.
2.MD.C.82.OA.A.1
Solve word problems with money situations.
Solve two-step word problems with money situations.
Solve two-step word problems with add to change unknown and take from change unknown.
2.OA.A.1
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