Exploring Model Addition in First Grade Math

The video tutorial introduces the concept of bar models in math, explaining how they can be used to solve problems by identifying and organizing important information. The teacher guides students through a problem involving counting flowers, demonstrating how to apply the bar model to find a solution. The lesson emphasizes understanding the size and relationship of numbers within the model, encouraging students to visualize and compare quantities effectively.

What is a bar model visually compared to in the video?

• A computer

• A desk

• A book

• A bicycle's handlebars

Tags

CCSS.4.MD.B.4

How many initial red flowers did Hanna have?

• Two

• Four

• Eight

• Six

Tags

CCSS.1.OA.A.1

What is the first step in solving problems with a bar model according to the video?

• Identifying important numbers

• Drawing the model

• Reading the problem statement

• Adding numbers together

Tags

CCSS.1.OA.A.1

Which number is represented by a larger box in the bar model?

• Three

• Four

• One

• Two

Tags

CCSS.4.NF.A.2

Why is the number two represented by a smaller box?

• It's a placeholder

• It's less significant

• It's an error

• It's a smaller number

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What total number of flowers does Hanna have after adding more?

• Ten

• Eight

• Six

• Four

Tags

CCSS.1.OA.A.1

How does the size of the box in the bar model relate to the number it represents?

• No relation

• Smaller box for larger numbers

• Larger box for larger numbers

• Random sizes

Tags

CCSS.2.MD.B.6

What does the teacher ask the students to do with their fingers to understand the numbers?

• Snap them

• Point them

• Spread them apart

• Squeeze them together

Tags

CCSS.1.OA.A.1

What is the purpose of squeezing fingers together in the demonstration?

• To represent division

• To distract students

• To indicate smaller numbers

• To show subtraction

Tags

CCSS.2.OA.A.1

What final number of flowers does Hanna have in the vase?

• Two

• Six

• Eight

• Four

Tags

CCSS.1.OA.A.1