Hour of Code

Code.org Off Line Coding Lessons for Computer Science Education Week

Lesson 1: Binary Baubles

Lesson 2: FuzzFamily Frenzy Instructions

Lesson 3: My Robotic Friend


Write your Own Code Overview

Scratch ED Lesson: https://scratched.gse.harvard.edu/hoc/

Common Core Ratio Games

Ratio Blaster

Ratio Blaster provides practice in finding equal ratios. Invading spaceships with ratio problems move down from the top of the screen toward a laser cannon on a platform at the bottom.

Content: Ratio Equivanency

Standards: 6.RP.A.1: Understand the concept of a ratio.

Players: 1

http://www.arcademics.com/games/ratio-blaster/ratio-blaster.html

Ratio Stadium

Ratio Stadium is a multi-player racing game that allows students from anywhere in the world to race one another while matching equivalent ratios!

Content: Ratio Equivalency

Standards: 6.RP.A.1: Understand the concept of a ratio.

Players: 4

http://www.arcademics.com/games/ratio-stadium/ratio-stadium.html

Understanding Integers

Click the link below for the presentation on Understanding Integers:
Understanding Integers

Chapter 8 Percent Review

Get Your Study Guide Here
Study Guide

Percent Review:

Ratios, Rates, and Proportions

The lessons in this chapter involve a great deal of cross multiplying and then solving for the variable.

Basically, we setup the proportion then multiply the top number (numerator) of the first ratio by the bottom of the second. Then we multiply the bottom (denominator) of the first ratio by the top number of the second. 

We can then divide to get the letter (variable) by itself.  

A ratio is a comparison of two quantities using division.
A ratio can be written as a fraction, in word form, or with a colon.
It can compare a part of a group to the whole.
It can compare two parts of the same group.
It can compare the whole group to one of its parts.

A rate compares two things with different units of measure
Example of a rate:
2 liter bottle of soda for $2.99

53 meters every 10 minutes

A unit rate is different from a basic rate, because it makes a comparison to one unit of an item

60 miles per 1 hour
16 ounces per 1 pound
60 seconds per 1 minute

 In order to convert a rate into a unit rate you need to divide.

6 miles in 2 minutes
6 divided by 2
Would give us 3 miles in 1 minute
3 miles per 1 minute is a unite rate
  

 

Adding and Subtracting Mixed Numbers

In my opinion the easiest way to add and subtract mixed numbers is to change them into improper fractions. This will put an end to having to regroup (or borrow from the whole number). Here are the steps laid out in an easy to understand way:

Step 1: Change both Mixed Numbers into Improper Fractions

            How?: Multiply the Whole number by the Denominator (the bottom number of the fraction) and
                       add the fraction's numerator (the top number in the fraction).

Step 2: Find the Least Common Denominator

           How?: Find the Lowest Common Multiple between the denominators. The Lowest Common
                      Multiple can be found several ways: List all of the multiples until you get to the first number
                      that they both go into; Use Prime Factorization; etc.

Step 3: Solve by Adding or Subtracting the Numerators
            (Write your answer over the Least Common Denominator)

Step 4: Change your Improper Fraction back into a Mixed Number

           How?: Divide the Numerator by the Denominator. The quotient (the answer) will be the new whole
                      number. The remainder (what's left over) will be the new numerator (the top number). Write
                      the remainder over the denominator.

Adding and Subtracting Fractions with Unlike Denominators

Unlike fractions have different denominators. To add or subtract
unlike fractions, first rewrite them as equivalent fractions with a
common denominator. You can use any common denominator or
the least common denominator to add and subtract unlike
fractions. The least common denominator (LCD) is the least
common multiple of the denominators.

Here is an example:

To get more practice with Adding and Subtracting Fractions with Unlike Denominators Click the Links Below:

Page 1: Word Problems
Page 2: Practice Page 1
Page 3: Practice Page 2