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This post has been co-written with Ben Wolfson, a full-time educator and assistant principal in the USA.
These number sequencing worksheets will capture your students’ imagination and have them mastering number order 1 to 20 in no time. The solar system always holds a big fascination for kindergarten students, so space will always be a great engaging theme for your classroom. Not only can you teach a whole science unit on planets and space, but you can bring your space theme to any piece of your academics.
The Importance Of The Number Sequencing
One of the key skills for any kindergarten student to master is the number order 1 to 20 including the names of the tricky teens. This will underpin their ability to successfully use a number line for counting on and counting back, as well as helping develop their overall number sense. As with all kindergarten math skills, the key to success is plenty of repetition which makes these space theme ordering number worksheets your new go-to math centre all year long.
Preparing Space Number Order 1-20 Worksheets
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To get ready for your space theme math center, you can print these cut and paste worksheets in either color or black and white. While you can keep it as a cut and paste activity, you’ll save time and paper by cutting the rockets yourself and laminating the full set for repeated use throughout your space adventure.
Extension Number Order 1 to 20 Activities
The best thing about these cut and paste worksheets is that they are ready to use straight off the printer. There are three levels (missing numbers 1 through 10, missing numbers 11 through 20 and the whole set from 1 to 20) so differentiation is easy, but you’ll want to have some of these activities ready for those students who have mastered the basic skill:
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Partner more or less – have students work with a partner with a full set of rockets numbered 1 thru 20. They then take it in turns to pick one rocket in secret and give their partner a clue using the phrases “this rocket is one more than ____” or “this rocket is one less than ___”. You could extend this further to two more or less or even three if your students master this skill quickly.
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Speed sort – give a student a full set of rockets and have them put them face down on the table. Have them start a timer and see how quickly they can turn the rockets over and put all 20 in the correct order. You can make it competitive by recording their score to see if they can get quicker, or make it into a social activity by having two students work together at the same time.
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Prepare for the 100 square – have your student organize the rockets 1 through 20 in two rows of 10 and have them identify the pattern looking down the columns. Add the next row (21 – 30) and see if they can continue the pattern by themselves. This will be a big challenge for most students but you’ll have some who are ready for this kind of work.