Exploring Change Unknown in 1st Grade Addition Stories

Miss Emily presents a video lesson for first graders on addition number stories with numbers under 20. The lesson includes multiple examples using birds, basketballs, and stars to illustrate how to find the missing addend in an addition problem. The video encourages viewers to visit motion.com for related activities and to subscribe for updates.

How many birds joined the three original birds to make six?

• 5 birds

• 4 birds

• 3 birds

• 2 birds

Tags

CCSS.1.OA.A.1

What is the result of adding three birds to the original three?

• 7 birds

• 6 birds

• 5 birds

• 8 birds

Tags

CCSS.1.OA.A.1

What is the total number of birds after six more joined the original three?

• 8 birds

• 7 birds

• 9 birds

• 6 birds

Tags

CCSS.1.OA.A.1

How many basketballs were added to the original two to get six?

• 3 basketballs

• 2 basketballs

• 4 basketballs

• 5 basketballs

Tags

CCSS.1.OA.A.1

After six birds joined the original three, how many birds were there in total?

• 10 birds

• 11 birds

• 8 birds

• 9 birds

Tags

CCSS.1.OA.A.1

How many basketballs were added to the original two to make a total of six?

• 2 basketballs

• 3 basketballs

• 4 basketballs

• 5 basketballs

Tags

CCSS.1.OA.A.1

What was the total number of basketballs after four more were added?

• 5 basketballs

• 6 basketballs

• 7 basketballs

• 8 basketballs

Tags

CCSS.1.OA.A.1

How many stars appeared later to make a total of nine stars?

• 3 stars

• 4 stars

• 5 stars

• 6 stars

Tags

CCSS.1.OA.A.1

If there were originally five stars, how many stars were there in total after more appeared?

• 8 stars

• 11 stars

• 9 stars

• 10 stars

Tags

CCSS.1.NBT.A.1

If five stars were originally twinkling, how many more stars appeared to make nine?

• 5 stars

• 4 stars

• 3 stars

• 6 stars

Tags

CCSS.1.OA.A.1