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Week 23 8th Grade Math Vocabulary.pptx

Published Feb 24, 2013 in Education
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This 8th grade math vocabulary power point covers dimensional analysis, density, scatter plot, trend, and linear relationship.

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Presentation Slides & Transcript

Presentation Slides & Transcript

8th Grade Math Vocabulary
Week 23

Dimensional Analysis
A process where units of measurement are included when computing an answer.

Dimensional Analysis
What this is all about is just conversion—converting one thing to another. This is something you will have occasion to do in real life. 

Dimensional Analysis
Anything you measure will have a number with some sort of unit of measure. A unit could be miles, gallons, miles per second, peas per pod, or pizza slices per person.

Dimensional Analysis
You are having a Pizza Party!


Dimensional Analysis
How many Pizzas do you need to order if you are going to have 15 people at your party?


Dimensional Analysis
Rephrase what you want to know using the word "per," which means "divided by.

Dimensional Analysis
How many pizzas do I need to order per party? This is ultimately want I want to know.

Dimensional Analysis
There are 12 slices per Pizza.

1 pizza
12 slices

Dimensional Analysis
Each person can eat 4 slices.

We need 4 slices per person.

1 Person
4 Slices

Dimensional Analysis
There will be 15 people at the party!
There will be 15 people per 1 party!

__15_People
1 Party




Dimensional Analysis

_1_pizza_ 4 slices 15 persons = 60 = 5 pizzas
12 slices 1 person 1 party 12 1 party
Order 5 Pizzas

Density
A measure of how much mass is in a given space (density = mass/volume)

Density
The density of water is about 1 kilogram per liter (1 liter of water has a mass of 1kg).


Density
Anything that floats has a lower density.
A feather has a lower density than water.

Density
Anything that sinks is more dense.
A camera is more dense than water.


Scatter Plot
A graph that shows the general relationship, or correlation, between two sets of data.

Scatter Plot
This Scatter Plot shows the relationship between “years of experience” and “income”. “Income” is the money that you make.


Trend
Consistent change over time.

Trend

Trend
The trend for Population of Hispanics living in the US is that it is increasing a lot (48% between 2000 and 2011).


Linear Relationship
A relationship that has a straight-line graph.

Linear Relationship

Take a quiz on these math vocabulary words at www.RudolphAcademy.com