Dividing 2-Digit Numbers with Equal Groups

The video tutorial demonstrates how to divide a two-digit number by a one-digit number using equal groups. It begins by explaining the division of 21 by 3, emphasizing the importance of understanding whether the divisor represents the number of groups or the number in each group. The tutorial uses visual aids like circles and squares to help students grasp the concept of equal groups. It also explores alternative methods of grouping and counting to ensure students understand the division process thoroughly.

What is the first step in dividing a two-digit number by a one-digit number using equal groups?

• Drawing the number of groups

• Drawing the total number of objects

• Counting the objects

• Writing the division equation

Tags

CCSS.4.NBT.B.6

CCSS.5.NBT.B.6

Why is it recommended to draw circles instead of dots?

• Circles are easier to draw

• Dots can be easily recounted by mistake

• Circles look better

• Dots are too small

Tags

CCSS.RI.6.5

CCSS.RI.7.3

CCSS.RI.7.5

CCSS.RI.8.3

CCSS.RI.9-10.5

How many circles are drawn to represent the number 21?

• 15

• 20

• 21

• 25

Tags

CCSS.1.NBT.A.1

What should students do to avoid recounting objects?

• Cross out objects as they go

• Use different colors

• Draw larger objects

• Count twice

Tags

CCSS.1.NBT.A.1

How many circles are in each group when 21 is divided by 3?

• 8

• 7

• 6

• 5

Tags

CCSS.3.OA.A.2

What does the number 3 represent in the second scenario?

• Total number of circles

• Total number of objects

• Number of groups

• Number in each group

Tags

CCSS.1.NBT.A.1

Why should the teacher avoid grouping objects into 7 groups automatically?

• It takes too much time

• Students might not understand

• It is not visually appealing

• Students are still discovering the division facts

Tags

CCSS.4.NBT.B.6

CCSS.5.NBT.B.6

How many groups are formed when 21 circles are divided into groups of 3?

• 8

• 7

• 6

• 5

Tags

CCSS.2.OA.C.3

What is the final result of 21 divided by 3?

• 6

• 7

• 8

• 5

Tags

CCSS.3.OA.B.6

What is the main focus when students group objects?

• Drawing neatly

• Ensuring groups are equal

• Using different shapes

• Counting quickly

Tags

CCSS.2.OA.C.3