Math Program
Investigations 3

• Understand and extend the counting sequence
• Describe, identify and compare attributes of 2-D shapes
• Understand, represent, and solve problems involving addition
• Understand, represent, and solve problems involving subtraction

Instructional Snapshot

Students will:

• Learn classroom routines

• Play addition and subtraction games like Five in a Row, and Roll and Record

• Solve story problems involving addition and subtraction

• Describe, identify, and compare attributes of 2-D shapes
• Compose and decompose 2-D shapes

• What is the difference between sides and corners?
• How is this shape the same or different from other shapes?

Instructional Snapshot

• Find many ways to make a hexagon
• Sort and describe shapes
• Play Guess My Rule

• Understand, represent, and solve problems involving addition and subtraction
• Understand place value
• Understand and extend the counting sequence
• Understand equivalence

• How many tens are there in this number? 
• How many ones?

Instructional Snapshot

• Develop fluency for facts within 10 through games
• Solve problems with unknown change
• Identify tens and ones on a hundreds chart

• Understand length
• Use linear units
• Understand, represent, and solve problems involving addition and subtraction
• Understand time
• Understand halves and fourths

• How long is it?
• Is this longer or shorter?  
• What time is it?

Instructional Snapshot

• Measure items with standard and non standard units of measure
• Tell time to the hour
• Identify halves of different 2-D shapes

• Understand, represent, and solve problems involving addition and subtraction
• Understand place value
• Understand equivalence

• How many ways can you make 10?
• What tools and strategies can you use to solve subtraction problems when the change is unknown?

Instructional Snapshot

• Play games focusing on fluency within 10, and pairs that make 10
• Solve problems about unknown change
• Write and find equivalent expressions

• Collect, represent, describe, and interpret data
• Understand, represent, and solve problems involving addition and subtraction

• Based on your quick survey data, what do you notice?
• What do you wonder?

Instructional Snapshot

• Solve comparison problems with bigger number unknown
• Represent survey data
• Take a quick survey and analyze results

• Understand and extend the counting sequence
• Understand place value
• Use knowledge of place value to add and subtract

• How did you solve this problem?  
• How can you use tens and ones when adding?

Instructional Snapshot

• Count by tens
• Add and subtract multiples of 10
• Compare numbers using greater than and less than
• Add and subtract using the 100 chart

• Describe, identify, and compare attributes of 3-D shapes
• Compose and decompose 3-D shapes
• Relate 2-D and 3-D shapes

• How are these two shapes the same and different?  
• Can you think of a real life object that has this shape?

Instructional Snapshot

• Explore characteristics of 3-D shapes
• Draw and build 3-D shapes
• Identify 2-D shapes they see in the faces of 3-D shapes