Solving Start Unknown Story Problems

The video tutorial explains two types of addition story problems: one where the result is unknown and another where the start is unknown. It uses an example involving Davion's books to illustrate how to solve a problem with an unknown start. The tutorial demonstrates filling in a Start-Change-Result (SCR) chart and using a number line to find the solution, concluding that Davion started with four books.

What type of addition story problem is being discussed?

• None of the above

• Change is unknown

• Start is unknown

• Result is unknown

Tags

CCSS.1.OA.A.1

What does SCR stand for in the context of the story problem?

• None of the above

• Solution, Change, Result

• Start, Count, Record

• Start, Change, Result

Tags

CCSS.7.NS.A.1C

How many books did Davion end up with?

• Seven

• Ten

• Three

• Four

Tags

CCSS.1.OA.A.1

What is the unknown in the story problem discussed?

• The name of the books

• The total number of books Davion has

• The number of books Davion was given

• The number of books Davion started with

Tags

CCSS.1.OA.D.8

Which direction do we move on the number line for addition problems?

• Left

• Right

• Up

• Down

Tags

CCSS.7.NS.A.1C

What is the change in the number of books in Davion's story?

• Ten

• Seven

• Four

• Three

Tags

CCSS.1.OA.A.1

How many jumps does it take to get from 3 to 7 on the number line?

• Two

• Three

• Four

• Five

Tags

CCSS.1.OA.C.6

What was Davion's starting number of books?

• Four

• Three

• Ten

• Seven

Tags

CCSS.2.OA.A.1

What mathematical operation is used to solve the problem?

• Division

• Multiplication

• Addition

• Subtraction

Tags

CCSS.3.OA.A.3

What final total does Davion reach after receiving more books?

• Seven

• Four

• Three

• Ten

Tags

CCSS.1.OA.A.1