In this activity, students determine their own eyesight and calculate what a good average eyesight value for the class would be. Students learn about technologies to enhance eyesight and how engineers play an important role in the development of these technologies.

This problem helps students to practice adding three numbers whose sum are 20 or less. It is an open-ended problem with many solutions.

Understanding that musical themes are the same even if they are played in different styles can help students understand that numbers maintain their same value even if they appear in different forms.

In this video, Amy Walker quickly demonstrates 21 accents from around the globe.

In this resource, there are 21 moon phases activities and resources including a few printables, a song, activities, and more.

21Things4Students is an online resource to help students improve their technology proficiency as they prepare for success in the real world. Teachers value 21Things4Students because it's experiential, relevant, applicable and adaptable. Students say they love this class!

This article contains a collection of beautiful sketchbook pages to help students studying a range of high school Art qualifications, including GCSE, A Level and IB Visual Art. The collection includes sketchbooks completed by students as well as artist sketchbooks. Pages have been selected to demonstrate different sketchbook presentation techniques as well as to indicate the variety of layout styles possible. Descriptions underneath each image provide tips and guidance, outlining the successful aspects of each page.

Students use numeral cards and mathematical symbol cards to practice simple addition and subtraction, work with number sentences, and develop systematic work habits. Students are challenged to find as many ways as possible to arrange some or all seven cards to create true statements.

This short video and interactive assessment activity is designed to give fourth graders an overview of 24-hour clocks.

This short video and interactive assessment activity is designed to give fifth graders an overview of 24-hour clocks.

In Microsoft ACCESS students will create a database of 25 music CD"™s that they would purchase if money were no object. Students will obtain their information through Internet research. List all sites used in a WORD document entitled "Sites Used". Students will use sort, query, and report tools to complete this database activity.

In this lesson plan, students will learn about the wall's rise and fall and explore the legacy of the Cold War.

In this lesson from Teaching Tolerance, students will focus the most recent constitutional expansion of voting rights: extending them to people between 18 and 21 years of age. Students will read the 26th Amendment and learn about its history. They will view an NBC report from Nov. 5, 2008, that explains how important the youth vote was to the election of Barack Obama. Finally, they will examine the results of a recent study showing that young voters have very different concerns than older voters, and hypothesize about how young voters might affect elections in the future.

In this lesson students will enhance their baseball, softball or hitting skills in an engaging manner.

 As students are reviewing odd and even numbers, students first sketch out a bug that has odd or even features. Students then use Google Drawing to turn their sketch into a work of art that they label to describe even and odd features.

 As students are reviewing odd and even numbers, students first sketch out a bug that has odd or even features. Students then use Tinkercad to turn their sketch into a 3D design to be printed.