MathIsimple
Unit 3: Place Value & Number Sense

Place Value & Number Sense

Master place value up to 1000, learn to read and write numbers, and develop strong number sense through interactive activities with place value disks and building blocks.

3 Interactive LessonsVisual Learning ToolsReal-World ScenariosStep-by-Step Guidance
Learning Objectives

Place Value Skills:

  • • Understand place value up to hundreds
  • • Use place value disks and visual models
  • • Build numbers using place value
  • • Recognize the value of each digit

Number Skills:

  • • Read and write numbers up to 1000
  • • Compare numbers using place value
  • • Order numbers from least to greatest
  • • Use real-world number contexts

Lessons

Explore 3 comprehensive lessons covering place value and number sense

Lesson 3-1: Deepening Place Value up to Hundreds
25-30 min
Lesson 1
Explore place value concepts using place value disks and visual models to understand hundreds, tens, and ones through interactive activities.

Real-World Scenario:

Place Value Disks: Build 56 = 5 tens + 6 ones using visual disks

Key Skills:

Place Value Disks
Hundreds Place
Visual Models
Number Building

Features:

  • Interactive place value disks
  • Visual number building
  • Hundreds place exploration
  • Step-by-step guidance
Lesson 3-2: Reading & Writing Numbers up to Thousands
30-35 min
Lesson 2
Learn to read and write numbers up to 1000 using building block models and real-world scenarios like stadium attendance.

Real-World Scenario:

Stadium Attendance: 856 people = eight hundred fifty-six

Key Skills:

Number Reading
Number Writing
Building Blocks
Stadium Scenarios

Features:

  • Stadium attendance scenario
  • Interactive building blocks
  • Number reading practice
  • Writing exercises
Lesson 3-3: Comparing & Ordering Numbers
25-30 min
Lesson 3
Master comparing and ordering numbers using place value strategies and real-world contexts like plant heights.

Real-World Scenario:

Plant Heights: Compare 156cm, 138cm, 162cm using place value

Key Skills:

Number Comparison
Ordering
Place Value Strategy
Plant Heights

Features:

  • Plant height comparison
  • Interactive comparison tools
  • Place value strategy
  • Ordering practice

Learning Strategies

Master these essential strategies for place value and number sense

Place Value Disks

Visual representation: 56 = 5 tens + 6 ones

Building Blocks

Construct numbers: 856 = 8 hundreds + 5 tens + 6 ones

Place Value Strategy

Compare by place: 156 < 162 (1=1, 5<6)

Number Reading

Read numbers: 409 = four hundred nine

Place Value System Preview

Place Values:

Hundreds: 100, 200, 300, 400, 500...
Tens: 10, 20, 30, 40, 50...
Ones: 1, 2, 3, 4, 5...
Each place is 10 times the place to its right

Number Examples:

856 = 8 hundreds + 5 tens + 6 ones
409 = 4 hundreds + 0 tens + 9 ones
156 < 162 (compare place by place)
Order: 138, 156, 162 (least to greatest)

Ready to start learning?

Start Lesson 1Next Unit