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By K5 Team
posted Nov 29 2016 - 10:14am

percentage changeWorking out the percentage change of two values can be confusing, but there is a method to the madness. In fact there are three methods to choose from, so you can pick the one you find easiest.

Let’s use an example to show you how.

The cost of a jacket went from $5 to $6. What is the percentage change in the price of the jacket?

By K5 Team
posted Nov 21 2016 - 12:41pm

i before e ruleThe written form of English includes the spelling patterns of five languages: Old English, Old Norse, Norman, Classical Latin and Greek – all superimposed upon one another.


Words in English are not always spelled the way they are pronounced. The result is that English spelling is highly irregular.


However, there are some general rules students learning to spell can follow (although some of these rules have exceptions):

Rule 1: i before e except after c

For example: receive and believe
The exception is: i before e except after a long c (with the ‘sh” sound) – as in ancient
and not when sounded like ‘a’ – as in weigh.

By K5 Team
posted Nov 14 2016 - 1:28pm

Angles are an important part of mathematics and they play an essential part in geometry.

What is an angle?

An angle measures the amount of turn between two lines (or arms) that are joined at one common endpoint.
The trick is to learn the name of each angle. As the angle increases, the name changes.

Acute Angles

Acute angles are the smallest - between (but not including) zero and 90°.

acute angle






posted Nov 8 2016 - 11:19am

Adjective or adverbUnderstanding the difference between an adjective and an adverb can be confusing. The difference lies in what they describe – a noun or pronoun,  or a verb, adjective or other adverbs.

What is an adjective?

An adjective is a word or set of words that describes a noun or pronoun.

Adjectives can come before the word they describe.

By K5 Team
posted Nov 1 2016 - 9:19am

mean median modeMean, median and mode are three kinds of ‘averages’.

The Mean

The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.

For example - find the mean of the following list of numbers:

13, 18, 13, 14, 13, 16, 14, 21, 13


The mean is the usual average:

(13 + 18 + 13 + 14 + 13 + 16 + 14 + 21 + 13) ÷ 9 = 15

By K5 Team
posted Oct 27 2016 - 8:55am

By Sheila Welch

The great kite bookSchools are increasing the use of nonfiction as part of their reading programs. Here’s an engaging range of nonfiction about a wide variety of subjects.

The Great Kite Book

THE GREAT KITE BOOK, by Norman Schmidt is a stunningly attractive informational book about kites. It includes a history of these flying creations, as well as carefully drawn patterns and photos of handmade kites against brilliant blue skies.  Children (ages ten and up) will want to make their own kites using the clear instructions provided. They will find 19 different designs – from bumble bees to bald eagles—to choose from in this unusual book.



By K5 Team
posted Oct 25 2016 - 9:02am

plural nounsThe English language has both regular and irregular plural forms of nouns.  There are rules for both the regular and irregular forms.

There is no easy way to remember the irregular plural nouns, so they will just have to be memorized.

Regular plural forms of nouns

1.    The most common case is when you need to add -s to the noun.
For example: one pear – three pears.

2.    Nouns that end with s, x, ch or sh, where you add –es
For example: one box – three boxes.

3.    Nouns that end with consonant + y, where you change the y with i and add -es
For example: one enemy – three enemies.


By K5 Team
posted Oct 18 2016 - 10:23am

What is order of operations and how do you use them in equations?

Let’s start at the beginning.

What is an operation?

An operation means to add, subtract, multiply, divide, squaring, etc.

When you see something like this:

order of operations


By K5 Team
posted Oct 11 2016 - 10:57am

Parallel structureParallel structure, also called parallel construction, is the repetition of a grammatical form within a sentence. Staying with one form adds clarity to your writing.

For example:

Harry likes swimming, the theatre and to go for hikes. – not parallel

Harry likes swimming, attending the theatre and hiking. – parallel
Harry likes to swim, attend the theatre and hike. - parallel

By K5 Team
posted Oct 4 2016 - 10:40am

All numbers are built from prime numbers. “Factors” are the numbers you multiply to get another number.

For example

prime factors









“Prime factorization” is finding which prime numbers multiply to make the original number.