Graphing and Measurement Review

Please take out your notes

​

Measurement Review

mm, cm, m, Km

1/1000 1/100 1000

​

Ruler or meter stick

​

�Measuring Length

• Always measure to the closest line (don’t round)
• How long is this line?

​

​

​

​

​

• 3.2 cm or
• 32 mm or
• 0.032 m

Measurement Review

mm, cm, m, Km

1/1000 1/100 1000

​

Ruler or meter stick

​

mg, g, Kg

​

Balance (scale)

​

�Measuring Mass

• Never place the balance near the table edge or between tables
• Use the unit button to make sure it’s in grams (g)
• Use the tare/zero button to zero out the scale (when using a container to measure)
• Record the decimal

Measurement Review

mm, cm, m, Km

1/1000 1/100 1000

​

Ruler or meter stick

​

mg, g, Kg

​

Balance (scale)

​

mL, L

cm³, m³

​

Graduated cylinder, beaker

Ruler or meter stick

​

�Measuring Volume

• Use L x W x H for a rectangular prism
• Units are cm³ or mm³
• Use water displacement for irregular objects
• Cylinder units are mL
• Always read the bottom of the meniscus (curve)

​

​

​

​

​

​

​

What would be the best way to graph this data?

Mr. Johnson’s 2^nd Grade Class was asked what their favorite lunch was. Here are the results:

​

Pizza—10 students

Hamburgers—6 students

Tacos—4 students

PB&J—3 students

Meatloaf—1 student

3 Things Graphs Must Have:

1. Specific, Descriptive Title
2. Labels on each axis
3. Proper format (line or bar)

Bar Graphs vs. Line Graphs

• When to use a line graph:
• Showing how two variables are related
• Showing how something changes over time

​

​

​

​

​

​

Bar Graphs vs. Line Graphs

• When to use a bar graph:
• Comparing separate categories