MA.K.NSO.2.1

Recite the number names to 100 by ones and by tens. Starting at a given number, count forward within 100 and backward within 20.

Clarifications

Clarification 1: When counting forward by ones, students are to say the number names in the standard order and understand that each successive number refers to a quantity that is one larger. When counting backward, students are to understand that each succeeding number in the count sequence refers to a quantity that is one less.

Clarification 2: Within this benchmark, the expectation is to recognize and count to 100 by the end of Kindergarten.

General Information
Subject Area: Mathematics (B.E.S.T.)
Grade: K
Strand: Number Sense and Operations
Status: State Board Approved

Related Courses

This benchmark is part of these courses.
5012020: Grade Kindergarten Mathematics (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712015: Access Mathematics - Grade Kindergarten (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012005: Foundational Skills in Mathematics K-2 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
MA.K.NSO.2.AP.1: Express number names from 1 to 100 by ones and from 10 to 100 by tens. Starting at a given number, count forward to 20 and backwards within 10.

Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

Formative Assessments

Count On:

Students begin counting at a number other than one.

Type: Formative Assessment

What Day of School Is It?:

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

Count the Candy Corn:

Students count to 100 by tens.

Type: Formative Assessment

Count By Ones:

Students count by ones to 45.

Type: Formative Assessment

Counting On:

Students begin counting at a number other than one.

Type: Formative Assessment

Bundles of Ten:

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

Type: Formative Assessment

Apples in a Bag:

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

Type: Formative Assessment

Counting Strategies:

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

Count the Dots Game:

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

Type: Formative Assessment

Lesson Plan

Sweetie Cake Pops:

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

Original Student Tutorials

Hopscotch Counting On: 11-20:

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

Hopscotch Counting On: 1-10:

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

Type: Original Student Tutorial

Counting on by Ones When Given Any Number From 0 through 20:

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

Counting by Ones:

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

Type: Original Student Tutorial

I Can Count... By Ones to Ten:

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

Type: Original Student Tutorial

STEM Lessons - Model Eliciting Activity

Sweetie Cake Pops:

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.

MFAS Formative Assessments

Apples in a Bag:

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

Bundles of Ten:

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

Count By Ones:

Students count by ones to 45.

Count On:

Students begin counting at a number other than one.

Count the Candy Corn:

Students count to 100 by tens.

Count the Dots Game:

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

Counting On:

Students begin counting at a number other than one.

Counting Strategies:

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.

What Day of School Is It?:

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.

Original Student Tutorials Mathematics - Grades K-5

Counting by Ones:

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

Counting on by Ones When Given Any Number From 0 through 20:

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

Hopscotch Counting On: 1-10:

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

Hopscotch Counting On: 11-20:

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.

I Can Count... By Ones to Ten:

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

Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

Original Student Tutorials

Hopscotch Counting On: 11-20:

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

Hopscotch Counting On: 1-10:

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

Type: Original Student Tutorial

Counting on by Ones When Given Any Number From 0 through 20:

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

Counting by Ones:

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

Type: Original Student Tutorial

I Can Count... By Ones to Ten:

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

Type: Original Student Tutorial

Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.