## 24 Percent TweetsTwenty 24 important things to know about percent. Each is |

(Note: the Learnist site is not longer working.)

Materials associated with thefirsttweet (the first concept) will be be designated with#P1. #P2 is associated with the second tweet - the second important concept, and so on. This continues until #P24, which is associated with the 24th important percent concept (the 24th tweet).

This is a curriculum (teaching/learning materials) made up of 24 short lessons on percent. The purpose is to teach concepts and skills about percent and the use of percents in the real world. The concepts and skills are presented in short

Slidesharepresentations, which include explanations and examples. Students are provided with practice questions usingQuizletdecks. Optional worksheets are provided below.Understanding of percents, fractions, and decimals is both challenging for students and essential for success in mathematics and for understanding how numbers are used in our world. I think 'the rubber really hits the road' when it comes to percent. I say this for two reasons: (1) Percent involves fractions and decimals. To effectively use percents one needs to flexibly leverage the interplay of percents, fractions, and decimals. (2) Percents are a primary tool used in our society to report on

changes in our world, from ESPN reporting basketball statistics, to the news media reporting on polls, our society, and economics.This

24 Percent Tweets projectfocuses onconceptual understandingandnumber sense, using procedural methods as tools. The majority of the questions can be done mentally (without a calculator). On the other hand, itis appropriateto use a calculator on some of the questions.Teachers and students wishing to use

, can find those below.worksheetsNote on percents greater than 100%: It is important to understand percents which are greater than 100% (for example, 125% = 1.25 = 1¼). (These are often overlooked or de-emphasized, and therefore, misunderstood.) Percents greater than 100% are included frequently in this 24 Percent Tweets curriculum, starting with #P1.

Following each Slideshare presentation is a

Quizlet deck(online flashcards) on the concept presented, with usually about 8 questions (and answers are on the back of the card). Then a 4 question/card Quizlet deck reviewing the previous concept.The 8 questions on each new concept and the 4 review questions have been put onto a half-page worksheet. There are 24 half-page worksheets (each with about 12 questions).

Download Worksheets Here- Individual files beloworclick here to download all 24 in a zipped file.#P1 to #P6#P7 to #P12#P13 to #P18#P19 to #P24

This curriculum is for anyone who needs (or wants :-) to learn about percents and their uses in the real-world. This might include:

- 7th graders - under the CCSSM, 7th graders are expected to have a thorough understanding of percent and its applications.
- Algebra students who will be studying exponential functions. To grasp exponential functions one needs to understand
.percent change- Business students, who use percent on a regular basis. Fluency with percents is useful for business decision-making.

Slideshare presentations can be used for worked examples and demonstrations.

Quizlet decks can be used for in-class exercises or out-of-class practice.

I usethese learning materials at the beginning of most class periods in my 100-level algebra course. (I teach at Western Illinois University.) I show theSlidesharepresentation, which takes about 5 minutes (or less). Students then work (for about 5 minutes) on the (written) worksheets. (I walk around the classroom answering questions and helping students.) We usually go over the answers (takes about 2 minutes). One concept (one "Percent Tweet") each day.The 24 concepts are presented in a logical order. However, the Slideshare presentations are independent of one another.

Click here for a

List of all 24 Tweets(concepts/things to know). Included in the 24 concepts (but not in this order) you will find:

- Fraction-Decimal-Percent conversion.
- How to solve each of the following: A% of B is ___; A% of ___ is B; __% of A is B.
- Percent equivalents for every unit fraction from 1/2 = 50%, ⅓ = 33⅓%, ¼ = 25%, ... , 1/9 ≈ 11%.
- Percent change problems - including all 6 percent change problem types. A
graphic organizeris presented to assist students doing percent change problems. Thepercent remainingmethod is presented and utilized.- Work with percents greater than 100% (250%, for example) and percents less than 1% (.08%, for example).
- Applications are included in every Slideshare presentation, every Quizlet deck, and on every worksheet.
- Mental math strategies. For example, to find 75% of 800 one can use ¾. In particular, divide by 4 first and then multiply by 3. On the other hand, to find 60% of 800, one can multiply 6×8 and put on the only logical number of zeros (1 zero): 60% of 800 = 480.

If you want to follow me on Twitter, click @DrOlsen314.

Four of the 24 'tweets' are on percent change (#16, #18, #21, #23).

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24 Percent Tweets Information Page

Page URL: http://www.wiu.edu/users/mfjro1/wiu/BootCamp/24-percent-tweets.html (shortcut: http://bit.ly/ZXLw0I)

©James R. Olsen, Western Illinois University. E-mail: `jr-olsen 'at' wiu.edu`

*updated
February 3, 2017
*