Standard 2: Recite number names sequentially within 100 and develop an understanding for place value.

Students begin counting at a number other than one.

Type: Formative Assessment

Students are told what day of school it is and then asked to determine what day it will be 10 days later and what day comes after day 59.

Type: Formative Assessment

Students use cubes to make a set of 10 ones and other ones to represent the number 17 and then write an equation or draw a picture that reflects this decomposition.

Type: Formative Assessment

Students use a ten frame to decompose 12 into tens and ones.

Type: Formative Assessment

Students count to 100 by tens.

Type: Formative Assessment

Students count by ones to 45.

Type: Formative Assessment

Students begin counting at a number other than one.

Type: Formative Assessment

Students are asked to count by tens and then use pictures of bundles of tens to demonstrate when counting by tens.

Type: Formative Assessment

Students are asked to consider what number comes next in the known sequence.

Type: Formative Assessment

Students are asked to break 15 into a group of 10 and some further ones.

Type: Formative Assessment

Students are asked to determine the total number of counters in three bags. One of the three bags is labeled with the number of items it contains, and the total number of counters is less than 20.

Type: Formative Assessment

Students are asked to compose 13 by using a group of 10 and some other ones.

Type: Formative Assessment

Students use ten frames to Count On from a number other than one.

Type: Formative Assessment

Students will identify the American flag as an important symbol of the United States. They will collect and sort data from the American Flag and compare the attributes. Students will sort and count red stripes and white stripes, long stripes and short stripes, long red stripes and long white stripes, short red stripes and short white stripes. Students will compare the stripes using the number line. They will also count stars by 1’s and 10’s in this integrated lesson plan.

Type: Lesson Plan

Students will piece together a puzzle with numbered pieces (1-10 or 11-20) to reveal an image which they should recognize as a symbol that represents the United States (ie: American flag, bald eagle, U.S. Presidents George Washington or Abraham Lincoln) in this integrated lesson plan.

Type: Lesson Plan

This lesson uses manipulatives, drawings, expressions and equations to provide understanding of the composition of teen numbers as a unit of ten and a group of ones.

Type: Lesson Plan

This lesson is designed to provide students explicit instruction on counting forward using something they love: Candy! Students will use the candy as a real-world example of a time when counting forward is a useful strategy, in the context of getting goodie bags ready for a party.

Type: Lesson Plan

With the teacher's modeling, students will be able to understand that teen numbers are made up of a unit of ten and some more ones.

Type: Lesson Plan

In this Kindergarten MEA lesson, students will work cooperatively to help Sweetie Cake Pops improve their recipe. They will work in groups to look at a data table and generate responses orally and written. Additionally, this lesson has a mathematical focus of skip counting by tens.

Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. Click here to learn more about MEAs and how they can transform your classroom.

Type: Lesson Plan

In this lesson, students will manipulate beans (fireflies) to represent numbers 11-19 as a unit of ten and a group of ones.

Type: Lesson Plan

This lesson is designed to teach students to write and represent groups of numbers using drawings. This lesson will cover the numbers 1 to 5.

Type: Lesson Plan

In this lesson, students will count forward from a given number while manipulating animals in a pond during a read aloud by the teacher.

Type: Lesson Plan

Poor Professor Dupont! He is missing his prized cockatoos! Help Professor Dupont find his special birds one by one as you turn the page. After helping Professor Dupont find his special cockatoos, create a classroom tree and sort the birds by color. You will have a fine feathered fantastic time counting and sorting!

Type: Lesson Plan

The students will use M&M's to find the number that makes 10, for any number from 1 to 9, when added to the given number. Students will record the answer as both a drawing and an equation.

Type: Lesson Plan

Get your antlers ready and be prepared to travel to the Great White North to count to 100 by 1's and 10's. Bullwinkle the Moose and Fred the Reindeer show students how counting to 100 can be fun. Part of this interactive lesson can be done every morning during calendar time to continue practicing counting by 1’s and 10’s.

Type: Lesson Plan

Students will learn about the concept of ones and tens and how 10 is a friendly number that we can utilize in various ways in mathematics. They will physically manipulate snap cubes to make a ten train and add on randomly selected ones that will include the numbers 11-19. After that students will draw representations of the numbers 11-19 and finally write the two-digit number that a ten train and a selected group of ones will create.

Type: Lesson Plan

In this lesson students will learn to count to 100 by 10's. The relationship between the numbers 1-10 and 10-100 will be made using the 100's chart followed by a PowerPoint story about Little Count the Caterpillar. Students will make their own Little Count the Caterpillar using circle body segments, where each circle represents the numerals 10, 20, 30... 

Type: Lesson Plan

Students explore lengths of fish to determine if fish are too long to fit in different sized aquariums. Students will use non-standard units and measuring tools to compare the lengths of fish and boxes without being able to directly hold the fish near the boxes.

Type: Lesson Plan

This activity practices taking one away from a number to compose an equation.

Type: Lesson Plan

For this lesson, students will practice counting from a given number in the counting sequence. Students will go on a "Counting Walk" to practice this concept.

Type: Lesson Plan

The students will receive explicit instruction from the teacher on the definition of decomposing a number and how to represent a decomposition with manipulatives, drawings, and equations. The students will use linking cubes to reflect numbers from 11-19, and to show their understanding of how to decompose a number. Students will record decompositions as an equation.

Type: Lesson Plan

The students will show understanding of the conservation of numbers regardless of the order in which objects were counted. The students will be able to tell "how many" without recounting objects and be able to explain that the amount is the same because no objects were added or taken away. 

Type: Lesson Plan

In this lesson, students will show understanding of the conservation of numbers regardless of the order in which they were counted. Student will be able to tell "how many" without recounting objects and be able to explain that the amount is the same because no objects were added or taken away.

Type: Lesson Plan

In this lesson, students will show understanding that "one more" is the next counting number. Student will be able to tell "how many" without recounting objects and be able to explain that the total amount is the next counting number because it is one more.

Type: Lesson Plan

In this lesson, students will represent numbers 11-19 using a unit of ten and a group of ones using objects. As an optional extension task, students will be challenged to use their knowledge of numbers 11-20 represented as a unit of ten and a group of ones to complete posters in a mock real-world situation involving free tickets.

Type: Lesson Plan

Count on beginning at any number within 11-20 in this playground-themed, interactive tutorial.

This is part 2 in a two-part series. Click to open Part 1, Hopscotch Counting On: 1-10.

Type: Original Student Tutorial

Count on beginning at any number within 1-10 in this interactive tutorial.

Type: Original Student Tutorial

Learn how to wash your hands and count to 20 in this interactive tutorial.

Type: Original Student Tutorial

Practice counting on by ones from a given number zero through twenty, as you help Miranda and Jacob in this interactive tutorial.

Type: Original Student Tutorial

Join Thomas and count to twenty by ones in this interactive tutorial.

Type: Original Student Tutorial

Learn to count to ten by ones with this interactive tutorial.

Type: Original Student Tutorial

Unlock an effective teaching strategy for teaching inequalities and equations with the math balance in this Teacher Perspectives video for educators.

Type: Perspectives Video: Teaching Idea

In this tutorial video from Khan Academy, explore place value relationships with tens and ones within 20.

Type: Tutorial

In this tutorial video from Khan Academy, place value patterns are explored in "teen" numbers.

Type: Tutorial