# 3rd Grade: Number Sense & Operations Unit

```Mathematics, 3rd Grade: Place Value & Number Sense Unit
Day 1
Topic:
Introduce Place
Value
Week 1
-important
characteristics of our
numeration system
(Hindu-Arabic)
-place value “rules”
Week 2
Day 2
Topic:
Exploring the
Hundred Chart & Base
10 blocks
-patterns and
characteristics
between numbers
Day 3
Topic:
Place Value Models
-Modeling proportional
and non-proportional
-Regrouping and
renaming
-introduction of Base10 blocks on overhead
projector
*powerpoint
*classroom projector,
manipulatives
*introduce variety of
manipulatives, websites
Day 6
Topic:
Equivalent
representations,
Decompose and
compose numbers.
Day 7
Topic:
Equivalent
representations,
Decompose and
compose numbers.
Day 8
Topic:
Using Money to
Understand Place
Value
- Lesson focused on
expanded format.
- Representing
numbers in words
*smart board or
projector
-Understanding
Hundreds, Tens and
Ones.
-Target Place Value
Game
-Reviewing values of
coins
-Counting up method
-Making change
-Playing a game
dealing with change
* websites, projector
Day 4
Topic:
Place Value Models
and Importance of
grouping by TEN
Day 5
Topic:
Compare, Order, and
Round Whole Numbers
- sequence of numbers
-modeling
ungrouped materials
and pre-grouped
materials
- order of numbers
- importance of when
to round
-grouping and
-facilitating counting
*website
Day 9
Topic:
Place Value
Games/Activities
Day 10
Topic:
Place Value
Games/Review
- Various critical
thinking activities
with small groups
and stations around
the classroom
- Play review games on
websites
- Use Everyday Math
(optional)
- Playing previous
activities from this unit
*Base-10 blocks,
websites, computer
software
*websites, calculators,
various games
(educational Everyday
Math)
```