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Elementary math lessons to learn
'Select types of number' for 4th grade
4th grade / Comparing numbers / Naming numbers / Select types of number
Select types of numbers
In this topic you are given the name of a type of number and you have to choose from the offered numbers which one is of that type.
For instance, the question might be "Negative" and you are offered the options "½", "-6", "3.5" and "890". You can see that the second answer is the only negative number in the list. The types of numbers you will be asked to distinguish are listed below.
Positive Numbers
Positive numbers are numbers greater than zero. They can be whole numbers or decimals. For example, 2, 5, and 12 are positive whole numbers, while 1.5 and 3.25 are positive decimals.
Negative Numbers
Negative numbers are numbers smaller than zero. They are written with a minus sign (-) in front of them. For example, -3, -6, and -15 are negative numbers. We can also have negative decimals, like -2.7 or -0.25.
Even Numbers
Even numbers are numbers that can be divided by 2 without leaving any remainder. In other words, they are numbers that can be split into two equal parts with nothing left over. Examples of even numbers are 2, 14, 52, 86 and 934. Notice that it is the units digit which is important in deciding if a number is even.
Odd Numbers
Odd numbers are numbers that cannot be divided by 2 without leaving a remainder. In other words, if you try to split an odd number into two equal parts, you will always have one part that is bigger than the other. Examples of odd numbers are 1, 23, 35, and 77. Again, it is the units digit that will allow you to tell if a number is odd or even.
Decimals
Decimal numbers are numbers that have a whole part and a fractional part separated by a decimal point. The fractional part represents a part of a whole. For example, 0.5 represents half, and 0.25 represents one-quarter. Decimals can be positive or negative, like 2.75 or -1.3.
Fractions
Fractions are numbers that represent a part of a whole. They are written as one number above another, separated by a horizontal or diagonal line. The number above the line is called the numerator, and the number below the line is called the denominator. For example, ½, ¾, and ⅘ are fractions.
Prime Numbers
Prime numbers are whole numbers greater than 1 that have only two factors: 1 and the number itself. In other words, prime numbers cannot be divided evenly by any other numbers except 1 and themselves. Examples of prime numbers are 2, 3, 5, 7, and 11.
This topic gives you the names of types of numbers and asks you to choose from the options the number that is of that type.
With these interactive math lessons you will be learning "Select types of number" from
4th grade / Comparing numbers in 3 easy steps. The math in our lessons consists of 6 questions that ask you to choose the number that is of the type named in the question e.g. fraction, prime, decimal, etc..
There are 3 easy math lesson activities in this "Select types of number" tutorial. These activities progress step by step to help you the learner gradually master this math topic. The activities are based on "3 stage questioning", a method of learning that quickly and easily builds your confidence as you work through the short series of lessons that strengthen your knowledge of the math that you want to learn.
When you have completed the tutorial for a topic, you should try some of our games before finally doing the test for your chosen topic. See the Help box below for detailed instructions on how to use the lesson activities to help you learn your math more easily.
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How to use our tutorials to learn
'Select types of number' for 4th grade
Introduction to the math topic
You start the tutorial with a lesson that introduces the math you will be learning. You will see a set of questions one at a time, and for each question you will see the written answer and also hear the answer to that question.
Repeat the question/answer by clicking on the brown speaker sign. Repeat the question/answer and expand the question graphic by clicking on the question box. Move between questions using the arrow buttons below the question. If there is additional information available for your chosen topic, the "i" button on the left upright bar will be brown on white. Click on the button to load the additional lesson information into the main interface.
Either / Or math lesson
This lesson moves on from the "Introduction" lesson and offers you two possible answers to each question. So, you will see a question then a voice will ask "Is this ... or is it ..." and you will have to choose which of the answers is the one that matches the question.
You choose an answer by clicking or tapping on one of the two answer boxes below the question. You can play the audio for each answer again by clicking on the speaker icon beside the written answer (if robot speech is available and enabled). The program will let you know each time whether you answered correctly. A star will light up red for a wrong answer or white/black for a correct answer.
This lesson asks you the questions in a random order compared to the introduction. At the end of the lesson, you can choose whether to repeat the lesson or move on to the next one.
What is it? math lesson
The final lesson of the tutorial shows you multiple possible answers for each question - you must choose the correct one. You are asked a question and below it are a list of two, three, or four possible written/numeric answers from this topic. Pressing the speaker icon will play the math audio for that answer.
For each picture, click on the answer that matches the question. The program will tell you whether you are right or not. As with the Either / Or activity a system of stars indicate your right and wrong answers. The What is it? lesson will show you all the questions you learned in the Introduction but in a random order.
When you complete the "What is it?" lesson, you can choose whether to go on to play some games with this topic, or whether you want to repeat some or all of the lesson activities in this tutorial. You should expect to get 80% of the answers correct in most of the activities before trying some of the Math games with this topic.
