Math vocab
A rectangle has a length of 5 inches and width of 9 inches. What is the area of the rectangle?
The amount of space inside a shape or surface. It is measured in square units (like square inches or square meters).
The area is 45 inches squared
using an area model solve this equation:
27 X 12
324
(20x10=200)
(20x2=40)
(7x10=70)
(7x2=14)
12, 15, 18, 21
What are the four CPM math roles?
1. Representative
2. Investigator
3. Coordinator
4. Organizer
(RICO roles)
What is a ratio? SHOW AN EXAMPLE
comparing two things
- time (hours to minutes)
- chocolate milk story (amount of chocolate to milk)
- day _ out of 175 (amount of current days in school to total)
What is an equation?
A math sentence that shows two things are equal. It uses an equal sign (=) to show that the value on one side is the same as the value on the other side.
For example, 3 + 5 = 8 is an equation.
8.3
A number line is divided into three equal portions. The number line starts at 1/8 and ends at 1/2 what is the missing value?
3/8
This role is responsible for:
- reporting teams thinking to the class
- answering questions asked of the team
Representative
How do we change a decimal into a percent?
SHOW AN EXAMPLE
you move the decimal 2 place values (multiplying it by 100)
What is a sum?
The result you get when you add two or more numbers together.
For example, the sum of 3 and 5 is 8.
Draw this shape and find the area.
length: 4 feet
width: 3 feet
12 feet - area
Ms. Jacklovich asked her classmates their favorite fruit and this is the results she got. Make a BAR GRAPH to show the results.
apple- 15
orange- 6
Grape- 11
Cherry- 14
Strawberry- 5
look at graphs.
-Labeled?
-Accurate representation?
-Neat?
This person is responsible:
- tracking tasks and time
- helps team agree on a method or solution
Coordinator
How do we get a fraction to a decimal?
SHOW AN EXAMPLE
divide the numerator by the denominator
What is a polygon?
A closed shape in geometry that has straight sides. The sides must be connected, and the shape can have three or more sides.
Examples of polygons include triangles, squares, and pentagons.
Round 0.2302 to the nearest THOUSANDTHS place.
0.230
Make a dot plot for the following
Year: Number of Major Atlantic Hurricanes
2010: 5
2011:4
2012:2
2013:0
2014:2
2015:2
2016:4
2017:6
2018:2
2019:3
2020:6
look for accuaracy
look for neatness
bottom of dot plot labeled with YEAR
This role is responsible for:
- collects and returns materials
- makes sure all team members record their work
organizer
0.3458 would be what as a percent
34.58%
What is an expression?
A group of numbers, symbols, and/or variables that show a mathematical idea but doesn’t have an equal sign.
For example, 3 + 5 or 2x – 4 are expression
Round 17.1936 to the nearest HUNDRENDTHS place.
17.19
fill in the missing blanks
- , 1.4, 1.8, -, -, 3, -, -
1, 1.4, 1.8, 2.2, 2.6, 3, 3.4, 3.8,
This role is responsible for:
- asking teacher questions
- makes sure team justifies their work
investigator
2 cups of milk and 2 cups of chocolate. what is the ratio AND how can we make it more chocolatey.
2 cups of milk :2 cups of chocolate syrup would be the ratio
2 cups of milk to 4 cups of chocolate syrup would make it MORE chocolatey in flavor.