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## Interactive Math Activity - Basic Addition to Twenty

Students will practice basic addition to twenty in this online math activity from iKnowIt.com. In this second-grade level math lesson, children will become familiar with basic addition facts to twenty as presented in ten frames, word problem format, horizontal addition facts, and vertical addition facts. After completing this fun, online math game, your students will be more confident and proficient in basic addition skills.

Children will solve a variety of math problems in this elementary addition game. For example, students may be given a vertical addition problem, like 8 + 1 =. Or they may be shown ten frames accompanied by a horizontal addition problem, 9 + 9 =. Students may also be asked to solve a word problem like this one: "Norah has 12 dollars. Evan has 7 dollars. How much do they have all together?" If children need a little extra help solving an addition math fact, they have the option to use the "Hint" button on their practice screen. The hint offers a helpful clue that will point children in the right direction without giving away the answer. When students get a question wrong, a detailed explanation page will provide an easy-to-understand explanation to help them learn where they went wrong so they can improve their skills as they progress through the lesson.

This interactive addition activity is equipped with several built-in lesson features that help students make the most of their math practice session. For example, the speaker icon in the upper-left corner of the practice screen indicates the read-aloud feature. Students can click this button to have the question read out loud to them in a clear voice. This is a great resource for ESL/ELL students and children who excel with auditory learning! A progress-tracker in the upper-right corner of the practice screen shows students how many questions they have answered so far out of the total number of questions in the lesson. The score-tracker beneath that lets students see how many points they have earned for solving math problems correctly. All of these lesson features are designed with your students' success in mind.

## I Know It Is the Top Pick for Teachers and Students Alike

Both elementary educators and students love using the I Know It math practice program! Teachers enjoy the wide variety of high-quality math activities we offer for kindergarten through fifth grade. Our online math activities cover fundamental math topics, like basic addition facts for second grade, written by elementary teachers just like you! In fact, each of our interactive math activities is designed to meet at least one Common Core Standard. With an organized category system on our website that allows you to browse and assign math lessons based on grade level and topic, it's easy to find the right math practice content for your students at any time!

Students, too, love practicing their math skills using the I Know It program. Learning is fun when silly animated characters cheer you on in your math practice, kid-approved emojis surprise and delight, and virtual math awards are earned for new math skills mastered. Math practice is anything but boring with the I Know It math program - it's an exciting adventure for all elementary students!

We hope you will give this second-grade addition lesson a try today. Be sure to explore the hundreds of 2nd grade math lessons in our online collection too.

Did you know you can sign up for a free thirty-day trial of the I Know It online math program? You can! Our free trial offer gives you the chance to try out this second-grade addition game, or any math practice activity on our website, at no costâ€”no credit card required. We are confident you and your students will love experiencing the difference interactive math practice can make. We hope you won't hesitate to become a member of the I Know It community when your free trial runs out, so you can continue to enjoy the benefits of online math practice for a full calendar year. We have membership options for families, individual teachers, schools, and school districts. For membership details, visit our membership information page: https://www.iknowit.com/order.html.

## Level

This interactive math lesson is classified as Level B. It may be ideal for second grade students.

## Common Core Standard

2.OA.2
Operations and Algebraic Thinking

Students will fluently add and subtract within twenty using mental strategies. By the end of second grade, students should know from memory all sums of two one-digit numbers.

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