Identifying Values on a Number Line

Mrs. Walker guides students through identifying unknown numbers on a number line. The lesson covers using a meter strip to understand endpoints, drawing and labeling number lines, finding midpoints, and calculating differences. Students practice these skills with various exercises, preparing them for independent practice.

What materials are needed for the lesson on identifying unknown numbers?

• Textbook, highlighter, sticky notes

• Calculator, protractor, compass

• Dry erase board, ruler, lesson template

• Notebook, pencil, eraser

What are the endpoints of the meter strip used in the lesson?

• 30 and 50 centimeters

• 50 and 100 centimeters

• 0 and 100 centimeters

• 0 and 50 centimeters

How long is the number line drawn from 30 to 50 centimeters?

• 10 centimeters

• 20 centimeters

• 30 centimeters

• 40 centimeters

What number is labeled at the midpoint of the number line from 30 to 50?

• 35

• 45

• 40

• 50

What are the values of points A and B on the number line?

• 45 and 55

• 35 and 45

• 30 and 50

• 40 and 50

What is the value of point E on the number line?

• 120

• 150

• 140

• 130

What is the starting point A when counting backwards from 95?

• 45

• 55

• 65

• 75

What is the value of point B on the number line with unknown units?

• 65

• 70

• 75

• 80

What is the value of point C on the number line?

• 85

• 90

• 95

• 100

What is the value of point D on the number line?

• 45

• 25

• 55

• 35