Standard 3: Develop an understanding of addition and subtraction operations with one-digit whole numbers.

Students are asked to orally provide answers to a mixed probe of addition and subtraction (within five) problems.

Type: Formative Assessment

Students are asked to orally provide answers to a mixed probe of addition and subtraction (within five) problems that focus on adding one and subtracting one.

Type: Formative Assessment

Students use manipulatives to decompose six in more than one way.

Type: Formative Assessment

Students are asked to orally provide answers to addition (within five) problems.

Type: Formative Assessment

Students are asked to orally provide answers to subtraction (within five) problems.

Type: Formative Assessment

Engage students in a fun game of guessing by integrating science and math skills. Students keep track of how many pilots are still in the group as they eliminate some each round based on their partner's answer related to observable characteristics. This lesson is based on the CPALMS eReader, "Ten Little Pilots," resource #217323.

Type: Lesson Plan

This activity deepens the students' understanding of addition and recording addition sentences by using an engaging story about ducks in a pond.

Type: Lesson Plan

In this lesson, students will use their fingers and manipulatives to help solve simple addition problems within 5.

Type: Lesson Plan

In this lesson, students will use manipulatives and equations to represent and solve addition and subtraction word problems.

Type: Lesson Plan

This is an engaging, hands-on lesson to help the students understand the meaning of the equal sign. The lesson is written using a pan/equal arm balance but may be done with just connecting cubes.

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

In this lesson, students will use manipulatives and equations to model and solve subtraction equations.

Type: Lesson Plan

In this lesson students will use manipulatives and equations to model bringing together two smaller groups to make one large group. This is part one of a two part series. Part 2 is titled "All Together Now- or NOT" (Resource 49796).

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

This activity will have students finding ways to make ten. Students use two colors of linking cubes to make and record equations of ten.

Type: Lesson Plan

Students will be able to describe how adding by one is like counting up or on.

Type: Lesson Plan

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

Type: Lesson Plan

The students will partner up and use Fruit Loops to represent addition equations with sums up to 10. They will draw, act out, use verbal explanations and write equations to show addition.

Type: Lesson Plan

In this lesson, students will work with subtraction within 10 by taking 1 away from a number.

Type: Lesson Plan

In this lesson, students will act out situations as an introduction to story problems. Students will also have the opportunity to solve addition story problems using manipulatives.

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

In this lesson, students will solve addition and subtraction word problems using Goldfish crackers. Students will also work with a partner to create and solve their own addition and subtraction word problems.

Type: Lesson Plan

Students will use cut out people shapes and number cards to create two addition equations and two subtraction equations using the same three numbers of a fact family to explore related addition and subtraction facts.

Type: Lesson Plan

What roles do exploration, procedural reliability, automaticity, and procedural fluency play in a student's journey through the B.E.S.T. benchmarks? Dr. Lawrence Gray explains the path through the B.E.S.T. mathematics benchmarks in this Expert Perspectives video.

Type: Perspectives Video: Expert

Unlock an effective teaching tool that can help students all the way from basic counting principles to multiplying polynomials.

Dot Matrix sheet is available for dowload here.

Type: Perspectives Video: Teaching Idea

Unlock an effective teaching strategy for connecting geometry and numbers in order to build number sense in this Teacher Perspectives video for educators.

Type: Perspectives Video: Teaching Idea

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

Type: Tutorial

Using a five-frame as a model, you will learn how to use equations to join two addends, to make 5.

Type: Tutorial

In this tutorial, you will learn to find the unknown change in an equation with a sum of 10: 3 + ? = 10.

Type: Tutorial

In this tutorial, you will learn to use symbols to record an unknown whole number in a subtraction equation relating to three whole numbers.

Type: Tutorial

In this tutorial, you will learn to use symbols to record an unknown whole number in an addition equation relating to three whole numbers.

Type: Tutorial