Children can practice counting, ordering, and identifying numbers 1 to 20 with this set of number cards.

This preschool math and coloring worksheet focuses on the number 20. Kids color all of the spaces with the number 20 to reveal a hidden sock picture.

Find out if students can count to 20 and help them identify areas of improvement in this counting assessment worksheet.

In this worksheet, “monkeying around” will help you master counting to 20!

Learners will love counting and writing numbers 1–20 in this St. Patrick’s Day themed-worksheet!

Use this worksheet to help your students practice their one-to-one correspondence counting skills.

Kids count and color in this one-to-one correspondence worksheet.

Count and color 21 United States flags to develop fine motor skills and excitement for 4th of July, then trace the word form of 21 for language practice!

Children will enjoy counting (and perhaps eating!) the rainbow with this fun one-to-one correspondence practice worksheet.

One more vegetable! This worksheet will have your students figuring out what happens when you add one more vegetable to the existing list.

How many hats are in each set? Practice counting 1–20 in this St. Patrick’s Day themed-worksheet!

Kids count the number of buttons on each shirt and draw lines from the number 1 to the shirts that have one button on this prekindergarten math worksheet.

How many pots of gold are in each set? Practice counting 1–20 in this St. Patrick’s Day themed-worksheet!

Help kids grasp the concept of subtraction by taking one away in this worksheet.

Learn the number 1 with this early math worksheet!

Use this glossary with the EL Support Lesson: One of These Things.

Kindergarten students are excited to practice their addition skills. As they grow to become better mathematicians, use this fun worksheet to help them understand what happens when you add one more.

Help students learn simple addition by exploring the concept of "plus one" in this worksheet.

Give your preschooler a head start on addition with these simple equations. This worksheet can also be cut to make flashcards for your child.

Children practice counting and comparing amounts in this numbers 1-10 math worksheet.

Kids color a rabbit and trace the number 1 several times to practice counting, identifying, and writing numbers on this prekindergarten math worksheet.

This preschool math and coloring worksheet focuses on the number 1. Kids color all of the spaces with the number 1 to reveal a hidden shark picture.

Give your little counter a head start on her numbers! This number puzzle will make up the number "1" when put together correctly.

Use this glossary with the EL Support Lesson: Which One Has More?

Use this glossary with the EL Support Lesson: Ordering Numbers 1-10.

Kindergarten students are practicing their addition skills! Help them practice adding one more using this helpful worksheet.

Alligator needs to take his first swing at hole number 1! Can your kid help him spot that very first number?

Use this glossary with the EL Support Lesson: Adding One to a Group.

Use these vocabulary cards with the EL Support Lesson: One of These Things.

Help your little learner take the first steps toward reading and phonemic awareness! Draw a line through the pictures that end in "-one".