Students will apply the idea of adding or subtracting ten to a number by adding or subtracting multiple groups of ten from a number. Included is a detailed lesson plan, videos of the lesson in action, materials and worksheets, and center...

In this exercise, students grouping objects by 10s. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Practice grouping objects by tens. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Primary source documents related to the Hollywood Ten, a group of writers, directors, and producers who were blacklisted for purported un-American activities and ties to Communism. All materials can be downloaded.

This is the full text of the book A Group of Noble Dames by Thomas Hardy, a collection of short stories. The stories are contained by a frame narrative in which ten members of a club each tell one story about a noble dame in the 17th or...

In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...

Practice making groups of 10 and 100 while adding 3-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this week's Afterschool Adventure, children will use number powers to solve problems and save the day! They will use grouping power to save a parade, skip counting power to catch a pie-snatching thief, and speed counting and place...

This blog provides information about the development of the sousaphone, the similarities and differences between the sousaphone and tuba, and the kinds of music groups that use sousaphones.

[Free Registration/Login Required] Explore base ten by bundling ten crayons at a time and then counting groups of ten without counting each individual crayon.

If you can count by tens in Spanish, then you'll enjoy this interactive number game. Put the Spanish numbers in the correct order to win the game, then check your answers.

First graders solve story problems where they create numbers using a group of 10 and some extra.

[Free Registration/Login may be required to access all resource tools.] In this interactive media source, the video shows how to write a number sentence from counting groups of pencils, followed by practice problems to assess understanding.

SWBAT identify a number based on dot patterns and practice counting.

Second graders will extend their understanding of hundreds, tens and ones using dollars, dimes and pennies as another way to express groups of 100, 10 and 1.

The Autobiography of Malcolm X traces the life of one of the most influential, controversial, and thoughtful people of the 20th century. Selected (10) reading passages (grades 8-11) to pair with the "The Autobiography of Malcolm X" by...

The American Radicalism Collection holds over 17,000 items. It includes books, pamphlets, periodicals, posters, and ephemeral material covering a wide range of viewpoints on political, social, and economic issues in America. The emphasis...

Students watch an online tutorial on the concept of estimating the mean. After watching, students test their knowledge by attempting ten practice problems that increase or decrease in difficulty based on their answers.

A reader's theater version of a folktale from Iran for 11 players, ages 8 and up. The performance length is ten minutes. Adapted by children's book author Aaron Shepard from his picture book "Forty Fortunes." You will find links to name...

A reader's theater version of a folktale from China for six or more players ages ten and up. Adapted by children's book author Aaron Shepard from his short novel "Monkey: A Superhero Tale of China," the performance length is five...

A reader's theater version of a folktale from Iran for ten players, ages 9-13. Adapted by children's book author Aaron Shepard from his short story "The Magic of Mushkil Gusha," the story explores themes of thankfulness and sharing....

Explains the characteristics of seven different types of government. Includes a group activity.

Practice adding two-digit numbers by making tens on Khan Academy. If you are stuck, watch a refresher video or choose to get a hint. Test yourself to see how many you can get correct!

Practice adding two-digit numbers by making groups of ten.