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We recently wrote about how to measure the volume of a cuboid. Today, we’ll tackle how to measure the surface area of a cuboid.

What is a cuboid?

A cuboid, also called a rectangular prism, is a solid three-dimensional box that has six faces that are all rectangles. Here’s an example of a cuboid:

What is surface area?

The surface area of a cuboid is a measure of the total area that the surface of that box, basically the area of all six sides.

How do we measure the surface area of the cuboid?

We now know that a cuboid has six rectangular faces. Also, if you look carefully, the two surfacea areas that oppose each other are the same size, or take up the same surface area.

The width and length sides are the same surface area:
width and length of cuboid 


What is predicting in reading?

Making predictions is a strategy that students learn to use information from a text to anticipate what they are about to read. For example, in grade 1 students are given simple texts to read and asked to circle the picture that depicts what happens next:


Predictions example for grade 1

Why is predicting a text important?

Learning to predict what happens next in a story is an important element in helping kids improve their reading comprehension. Why, you ask? Students who are able to make predictions about a story, based on what they have already read, are also able to become actively involved in the reading process.

In making predictions, students use critical thinking and problem solving skills. In reflecting and evaluating the text, students extract deeper meaning of the text and, therefore, improve their comprehension skills.


We have published 6 new leveled reading comprehension workbooks for grade 3 students in our bookstore. Each new workbook contains 10 stories and corresponding exercises. Answer sheets are also provided.

The reading comprehension workbooks in our bookstore are leveled from A to Z, based on the following text criteria:
-    Vocabulary words
-    High-frequency words
-    Average word size
-    Number of words per sentence, on average
-    Amount of repetition of words and phrases
-    Story length
-    Subject matter complexity

Let’s show you one of our new stories. This one’s from our level O (2) reading comprehension workbook.

Grade 3 reading comprehension story

The level N – P stories are written to meet grade 3 reading comprehension requirements. The story below is a mid-grade reader for grade 3 students:

Grade 3 reading comprehension story


Learning about our solar system is fascinating to most kids. The sun, the moon, the stars and planets are covered in all elementary school grades. In grade 1, students start to learn the basic facts about our Solar System. Students are asked to use observations of the sun, moon and start to describe patterns, such as how the sun rises and moved across the sky. They also learn about patterns of daylight at different times of the year.

In our science worksheets section, we have created a series of worksheets that cover the earth, sun and moon for grade 1 students, including:

Day and night

In grade 1, kids learn that day and night happen as the earth spins relative to the sun. We’ve created 2 worksheets for kids to practice day and night:

Day and nigh worksheet


What is a cuboid?

A cuboid, also referred to as a rectangular prism, is a solid three-dimensional box (or object) that has six faces that are all rectangles. Here’s an example of a cuboid:

Cuboid shape
What is volume?

The volume is the amount the three-dimensional shape takes up.


We’re lacking in workbooks for kindergarten students in our bookstore, but we are doing something about it. Today, K5 published the first of a series of new workbooks for kindergarten. It’s a letters workbook focused on learning to trace and print the letters A to Z, understanding upper and lowercase letters, and putting letters in alphabetical order.

Let’s show you how some of the pages look.

Letters A to Z worksheets

Here’s what the letter A worksheets look like. Each letter has four worksheets dedicated to learning that letter, starting with tracing and printing the letters A and a:

Trace and print letter A


Trace and print letter a 


Spelling, spelling, spelling. During the school year, our kids grind their way through lists of spelling words. Hunched over sheets of paper with pencil in hand, kids try to stay focused as they write words over and over again to memorize the spelling. There has got to be a better way to keep kids motivated as they learn to spell.


spelling not fun

Next time your child grumbles about the weekly spelling words, try one of these methods to make learning to spell more fun.

Play games

play games to learn to spell

From the simplest games, such as hangman, to more sophisticated apps, there are lots of games that will help students stay motivated whilst learning to spell words. Scrabble is a great example. The game gets your children’s competitive juices flowing as they complete to score the most points from creating words out of a selection of letter tiles.


Hot on the heels of our kindergarten science worksheets, we have today published science worksheets for grade 1 students. The plan is still to add curriculum-based science worksheets up to the end of grade 5 for free.

Science worksheets for grade 1

Our science worksheets for budding young scientists cover the following topics:


This section covers living things, parts of plants, seeds, plant life cycles and how plants adapt to their environment. Here’s one of those worksheets, covering the plant life cycle:

grade 1 plant life cycle

All our worksheets come with answers on a second page:

plant lifecycle answers


Can a verb also be a noun? The short answer is: yes.

As we know a noun is a word that names things, such as persons, places and things, as well as feelings, ideas and acts. We also know that verbs are action words. We use verbs to describe what nouns do.  So how can a verb also be a noun.

Let’s take a look at an example:

The word: play.

I like to play in the park with my friends.
Play is a verb in this sentence.

We’re going to see a play tonight at the theater.
Play is a noun in this sentence.

There are lots of words that can be both a noun and a verb. Here are some:

  • Bait
  • Love
  • Peel
  • Bowl
  • Exit
  • Fly
  • Park
  • Ship

We’ve created some worksheets in our grade 3 grammar section for students to practice writing sentences with words that are both nouns and verbs.


Nouns that are verbs


Hot on the heels of our picture crosswords book, we have created a crosswords book for students in grades 3 – 5. Crosswords help students to practice vocabulary and spelling.


The book contains 20 crosswords on topics relevant to older elementary school kids. We’ve taken great care in choosing words that fit within the vocabulary curriculum for kids in grade 3 to 5.

Each puzzle is accompanied by clues. Here’s what one of the crosswords looks like:

Space crossword for grade 3 to 5


Crossword clues for grade 3 to 5