Valentines Day Math Activities Worksheets – Prime Numbers for Kids Sorting Activity

If you are looking for a fun valentine’s day math activities, you will love this valentines day
math that helps kids practice sorting prime and composite numbers. In this prime numbers
activity, grade 3 and grade 4 students will use the free printable heart numbers and sorting
mats to practice sorting numbers.

Looking for a fun math activity for your 3rd and 4th graders? This prime and composite
number sorting activity is perfect to practice those tricky math skills. The printable is
valentine themed, making it perfect for a valentine themed unit activity. Practice the concept
of factors and multiplication with your 3rd and 4th graders using this fun and hands-on
printable. Teaching multiplication is tricky and can be confusing so make learning it fun with
this hands-on sorting activity printable.

What are Factors?
When learners first begin learning multiplication and division, they start understanding the
concept of factors. A factor is the number which is multiplied by another whole number to
give a product. For e.g. 4×3 gives 12, and in this case 3 and 4 are the factors of 12. Once
learners are familiar with the concept of factors they can then be introduced to the concept of
prime and composite numbers.
Prime Numbers and Composite numbers
A prime number is a number greater than 1 which only has 2 factors, 1 and itself. That
means it is not divisible by any other number apart from these two numbers. Some examples
include 2, 3, 5, 7, 11, etc.
A composite number is a positive integer that can be formed by multiplying two smaller
positive integers. It has at least 3 factors (including one and the number itself). Examples of
composite numbers included 4, 6, 8, 9, 10, etc.