*"How can I help my students remember what number goes where?"*

**The symbol separating the**

*Side Note:***dividend**

**from the**

**divisor**in a

**problem is a straight vertical bar with an attached**

__long division__**vinculum**(you might have to look this word up) extending to the left, but it seems to have no established name of its own. Therefore, it can simply be called the "long division symbol" or the

**. I wish it were named something fancier, but sometimes plain and straight forward is the best!**

__division____bracket__Now let's look at a fraction that the student is asked to rewrite as a decimal. The fraction on your right is

**two-fifth**s and is read from top to bottom as

*That's easy enough, but when my students enter this into their calculators, many will put in the*

**two divided by five.****5**first, and then press the division sign, followed by the

**2**. Of course, they get the wrong answer. Now let's look at the

**dump and divide method**.

First,

**dump**the

**2**into the calculator. Then press the

**division sign**; then

**divide**by

**5**. The answer is

**0.4**.

I am aware that many of students are not allowed to use calculators; so, let's look at how this method would work using the division bracket. We will use the same fraction of 2/5 and the same phrase,

**dump and divide**.

First, take the numerator and

**dump**it inside the division bracket. (Note: Use

**N side**instead of

**inside**so that

**umerator and**

__n__**side both start with "**

__N__**".) Now place the 5 outside of the long division bracket and**

__N__**divide**. The answer is still

**.4**.

**Dump and Divide**will also work when a division problem is written horizontally as a number sentence such as:

**15 ÷ 3**. First, reading left to right,

**dump**

**15**into the division bracket. Now place the

**3**on the outside. Ask, "How many groups of three are in 15?" The answer is

**5**.

Try using

**Dump and Divide**with your students, and then let me know how it works. You can e-mail by clicking on the page entitled

**or just leave a comment.**

*Contact Me*Since many students do not know their multiplication tables, reducing fractions is almost an impossible task. The divisibility rules, if learned and understood, can be an excellent math tool. The resource,

**Using Digital Root to Reduce Fractions,**contains four easy to understand divisibility rules as well as the digital root rules for 3, 6, and 9. A clarification of what digital root is and how to find it is explained. Also contained in the resource is a dividing check off list for the student. Download the preview to view the first divisibility rule plus three samples from the student check off list.

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Adrienne

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