Grade 1: Unit 1.NBT.B.2-3, Understand Place Value

Lesson Seeds: The lesson seeds are ideas for the domain/standard that can be used to build a lesson. Lesson seeds are not meant to be all-inclusive, nor are they substitutes for instruction.

Domain: Number and Operations in Base Ten
Cluster: Understand Place Value
Standard: 1.NBT.B.3 Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
Purpose/Big Idea:Comparing two two-digit numbers using symbols <, >, =.
Materials:
  • Two number cubes (dice)
  • Resource Sheet 4: Tens and Ones Place Value Mat (one copy for each student)
  • Digi-Blocks or base ten blocks
  • Resource Sheet 8: Dicing it Up With Tens and Ones Direction Sheet
  • Resource Sheet9: Dicing it Up With Tens and OnesRecording Sheet
  • Resource Sheet10: Hundred Chart

Activity: Dicing It Up With Tens and Ones
  • Player 1 rolls two number cubes (dice). Player 1 builds a number on the place-value mat using the two numbers rolled on the number cubes. For example, if the player rolls a 3 and a 6, she may build either 36 or 63.
  • Player 2 rolls two number cubesand builds the number on his place value mat.
  • Each player records both players’ numbers on their recording sheets.
  • Each player compares the two numbers by writing in the correct symbol: <, >, =.
  • Repeat the previous steps as many times as needed.

Guiding Questions:
  • Discuss the value of the numbers using <, >, =.
  • How did you know which number was greater? Less?
  • How many more tens does the larger number have?
  • How many more ones does the larger number have?
  • Compare your number to your partner’s number. How many more/less do you have? (Have a hundred chart available)
  • Think about the number ____. What is one less than this number? What is ten less? (Have a hundred chart available)
  • How many tens are there in the number __? How could you find out?

Resource Sheet 4Tens and Ones Place Value Mat

Resource Sheet 8 Dicing it Up With Tens and Ones Direction Sheet

  1. Player 1 rolls two number cubes
  2. Player 1 builds a number on the place-value mat using the two numbers rolled.
  3. For example, if the player rolls a 3 and a 6, he/she may build either 36 or 63.
  4. Player 2 rolls two number cubes and builds the number on his/her place-value mat.
  5. Each player records both players’ numbers on their recording sheets.
  6. Each player compares the two numbers by writing in the correct symbol: <, >, =.
  7. Repeat the previous steps as many times as needed.

Resource Sheet 9 Dicing it Up With Tens and Ones Recording Sheet

Player Names: ______

______

Player 1

______
Number / Player 2
______
Number
Player 1
______
Number / Player 2
______
Number
Player 1
______
Number / Player 2
______
Number

DRAFT MSDE Common Core State Curriculum for Grade 1 April 24, 2013 Page 1 of 10

Grade 1: Unit 1.NBT.B.2-3, Understand Place Value

Resource Sheet 9 Dicing it Up With Tens and Ones Recording Sheet (continued)

Player 1
______
Number / / Player 2
______
Number
Player 1
______
Number / / Player 2
______
Number
Player 1
______
Number / / Player 2
______
Number

DRAFT MSDE Common Core State Curriculum for Grade 1 April 24, 2013 Page 1 of 10

Grade 1: Unit 1.NBT.B.2-3, Understand Place Value

Resource Sheet10 Hundred Chart

1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10
11 / 12 / 13 / 14 / 15 / 16 / 17 / 18 / 19 / 20
21 / 22 / 23 / 24 / 25 / 26 / 27 / 28 / 29 / 30
31 / 32 / 33 / 34 / 35 / 36 / 37 / 38 / 39 / 40
41 / 42 / 43 / 44 / 45 / 46 / 47 / 48 / 49 / 50
51 / 52 / 53 / 54 / 55 / 56 / 57 / 58 / 59 / 60
61 / 62 / 63 / 64 / 65 / 66 / 67 / 68 / 69 / 70
71 / 72 / 73 / 74 / 75 / 76 / 77 / 78 / 79 / 80
81 / 82 / 83 / 84 / 85 / 86 / 87 / 88 / 89 / 90
91 / 92 / 93 / 94 / 95 / 96 / 97 / 98 / 99 / 100

DRAFT MSDE Common Core State Curriculum for Grade 1 April 24, 2013 Page 1 of 10