In this worksheet, children will learn about a few common resource materials and how to search for information in them alphabetically.

Use this reference sheet to encourage students to use a variety of transition words in their writing to signal the different relationships between ideas.

Create a mini guide that can serve as a useful reference when completing the activities in the workbook "Hooray for Arrays" and others.

Your scholars will break down their vocabulary words with inflected endings into the base form in order to successfully locate a dictionary entry.

Introduce geometry learners to the Pythagorean theorem with this helpful one-page reference sheet!

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

Use this one-page reference sheet to help students learn all about translations on the coordinate plane!

Give students practice solving and graphing one-step inequalities with this one-page algebra worksheet!

Practice solving one-step addition and subtraction equations with this one-page algebra worksheet!

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

Explore how waves interact with materials in this engaging physical science worksheet for middle grades!

Kids completing this third grade math worksheet multiply by 1 to solve each equation and also fill in a multiplication chart for the number 1.

Identify numbers that are one less than another number with this kindergarten worksheet!

In this fall-themed worksheet version of the popular game two truths and one lie, learners will solve three equations and determine which two equations are true and which one is false.

Practice adding one to numbers within 10 with this first-grade addition worksheet!

Travel through the hundreds chart on a quest to one.

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

In this worksheet, students will identify, count, and order numbers from 1-10 in order to gain a better understanding of one-to-one correspondence between numbers and pictures.

This printable guide walks teachers through the steps to create student-facing language objectives.

Use this glossary with the EL Support Lesson: One Less.

This discussion guide helps readers reflect on chapters 1–38 of The One and Only Ivan.

Ask your kindergartener to complete these one-digit subtraction facts, and they'll go above and beyond kindergarten standards in no time!

Students solve and graph one-step inequalities with this one-page algebra worksheet!

Practice solving one-variable, one-step equations with this engaging math puzzle worksheet!

Give your first grader's math skills a boost with this delightful worksheet that asks them to complete a collection of one-digit addition problems.

Translate scenarios to one-step equations with this story-stacked 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.

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

Learn the number 1 with this early math worksheet!

Give students extra practice solving and graphing one-step inequalities with this one-page algebra worksheet!