Skip counting

Skip counting is a mathematics technique taught as a kind of multiplication in reform mathematics textbooks such as TERC. In older textbooks, this technique is called counting by twos (threes, fours, etc.). In skip counting by twos, a person can count to 10 by only naming every other number: 2, 4, 6, 8, 10.

 

"Skip Counting" is counting by a number that is not 1

 

For Example...

 

You can skip count by 2's like this...

2, 4, 6, 8, 10...

Skip Counting by 10s

Skip Counting by 10s is like normal counting, except there is an extra "0":

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ...

Skip Counting by 5s

Skip Counting by 5s has a nice pattern:

5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ...

That pattern should make it easy for you!

Here's a little buggy worksheet to help you practice just fill in the missing numbers.

 

Sometimes a chart can help!

You can make one of your own 

like the one I created below

  

Here's a way I might teach this to my future students.

1. attach a string (or yarn or even a piece of rope) to one wall, stretch it across the room and attach to an opposing wall.
2. Give several students (or all students) a card with the numbers...5-100 using only 5's (5, 10, 15, ect)
3. Have the first student attach their card to the string (using a folded piece of paper would work great to tent over the string)
4. Have each student one at a time place their card on the string in the correct order based on the cards already placed by each student before them.  (Create a giant number line)
5. You can do multiples of any number not just 5's

Some Online Games and Resources 

http://members.learningplanet.com/act/count/free.asp 

http://www.free-training-tutorial.com/skip-counting-games.html

 

Common Core

CCSS.Math.Content.2.OA.C.3 Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

CCSS.Math.Content.2.NBT.A.2 Count within 1000; skip-count by 5s, 10s, and 100s.

 Source Citation

Definition Dictionary.com

Concept meaning--mathisfun.com

bugworksheet--teacherspayteachers.com