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- 1.OA.A.1Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
- 1.OA.A.2Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

Using 3 or More Addends to Make a Meal

1st Grade Math

» Unit:

Problem Solving Addition

Big Idea:Using the theme of a very YUMMY Thanksgiving meal, students will plan their own meal and figure out the cost of it.

Carrie Clark

Rural Env.

14 Resources

12 Favorites

14 Resources

12 Favorites

Make a Bunny

1st Grade Math

» Unit:

Solving 3 Addend Problems

Big Idea:Incorporate both 1.OA.1's Make 10 strategy focus AND 1.OA.A.2's focus on adding 3 addends as students work to solve word problems.

Amanda Cole

Urban Env.

15 Resources

20 Favorites

15 Resources

20 Favorites

Math Fact Sorting

1st Grade Math

» Unit:

Solving 3 Addend Problems

Big Idea:Students work to solve multiple 3 part number sentences and determine if they are equal or not! Students practice using less than, equal to and greater than language!

Amanda Cole

Urban Env.

17 Resources

5 Favorites

17 Resources

5 Favorites

Word Problems with 3 Addends Part III

1st Grade Math

» Unit:

Word Problems

Big Idea:Following multi-step directions is a difficult task for first graders. This lesson will allow additional practice to solve word problems. I want them to pick the strategy that works best for them to join three numbers.

Jennifer Moon

Urban Env.

20 Resources

8 Favorites

20 Resources

8 Favorites

What's the Sum

1st Grade Math

» Unit:

Blending

Big Idea:Old McDonald had a farm and all of his animals came out to play. How many animals are there in all? Today the students will find out!

Thomas Young

Suburban Env.

25 Resources

7 Favorites

25 Resources

7 Favorites

Word problems with 3 Addends Part I

1st Grade Math

» Unit:

Word Problems

Big Idea:Following multi-step directions is a difficult task for first graders. This introductory lesson will teach them how to bring a word problem to life and help them visualize what needs to be done to solve by joining three numbers.

Jennifer Moon

Urban Env.

16 Resources

9 Favorites

16 Resources

9 Favorites

Addition Strategies

1st Grade Math

» Unit:

Single Digit Addition and Subtraction

Big Idea:Let’s put it all together! In this lesson students will use addition strategies to solve word problems.

Lisa Murdock

Urban Env.

14 Resources

5 Favorites

14 Resources

5 Favorites

Dice Rollin': Associative Property at its Most Fun!

1st Grade Math

» Unit:

Solving 3 Addend Problems

Big Idea:Students apply known facts to help them add 3 numbers together in this game oriented lesson!

Amanda Cole

Urban Env.

18 Resources

14 Favorites

18 Resources

14 Favorites

Word Problems with 3 Addends Part II

1st Grade Math

» Unit:

Word Problems

Big Idea:My students have worked on joining 3 addends using drawings, objects, and equations. This lesson will supply concentrated practice on solving 3 addend equations with sums less than or equal to 20.

Jennifer Moon

Urban Env.

17 Resources

4 Favorites

17 Resources

4 Favorites

Keep it Simple

1st Grade Math

» Unit:

Solving 3 Addend Problems

Big Idea:Introduce students to the concept of "simplifying" as they find the friendly number sentences that help them solve 3 addend number sentences!

Amanda Cole

Urban Env.

14 Resources

11 Favorites

14 Resources

11 Favorites

George and Martha: Missing Parts

1st Grade Math

» Unit:

Solving 3 Addend Problems

Big Idea:Connect to a classic children's story and extend student thinking! Students apply their understanding of 3 addend equations to solve for the missing part of a story problem.

Amanda Cole

Urban Env.

13 Resources

10 Favorites

13 Resources

10 Favorites

10: A Helpful Best Friend

1st Grade Math

» Unit:

Solving 3 Addend Problems

Big Idea:Students solve problems and look for how 10 can help them make it easier!

Amanda Cole

Urban Env.

12 Resources

3 Favorites

12 Resources

3 Favorites

Counting and Combining Groups of Objects

1st Grade Math

» Unit:

Counting by Groups

Big Idea:Today your students will solve story problems that ask them to find totals the involve groups of 2 and 4.

Thomas Young

Suburban Env.

26 Resources

6 Favorites

26 Resources

6 Favorites

Find a Match!

1st Grade Math

» Unit:

Solving 3 Addend Problems

Big Idea:Students practice equality and 3 addend number sentences in this fun, interactive partner game!

Amanda Cole

Urban Env.

13 Resources

2 Favorites

13 Resources

2 Favorites

1.OA.A.1

Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

1.OA.A.2

Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.