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.

 
81 Lesson(s)
   

Counting the Total

1st Grade Math » Unit: Working with Numbers, Operations, and Story Problems
1st Grade Math » Unit: Working with Numbers, Operations, and Story Problems
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Prove you're right! That will be what you say to students, when they tell you that they have found all of the combinations for today's story problem.

 
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Resources (18)
 
Reflections (1)
lesson image
   

Add or subtract using word problems

1st Grade Math » Unit: Single Digit Addition and Subtraction
1st Grade Math » Unit: Single Digit Addition and Subtraction
Lisa Murdock
Lakeland, FL
Environment: Urban
 
Big Idea:

The word problems in this lesson will have the students making models to solve them. By making a model, that will help the student see what part of the problem to find.

Standards:
 
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Resources (13)
 
Reflections (1)
lesson
   

What is a story problem?

1st Grade Math » Unit: Creating a Culture of Math
1st Grade Math » Unit: Creating a Culture of Math
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

Start your year off strong with this introduction to problem solving in first grade! Or use this lesson to kick off your Kindergarten problem solving unit.

 
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Resources (12)
 
Reflections (1)
alex
   

What are our norms for how we listen?

1st Grade Math » Unit: Creating a Culture of Math
1st Grade Math » Unit: Creating a Culture of Math
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

This lesson helps build a strong culture of problem solvers, and it can work as an introduction in 1st grade or as a Kindergarten lesson!

 
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Resources (14)
 
Reflections (1)
strategy share 2
   

Unit Assessment on Measurement Concepts

1st Grade Math » Unit: Non Standard Measuring
1st Grade Math » Unit: Non Standard Measuring
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Move over Van Halen because today we are all going to "Jump." So go ahead and jump as students solve an assessment piece and story problems involving jump lengths. If you are under 30, please Google Van Halen before proceeding.

 
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Resources (21)
 
Reflections (1)
lesson image
   

Explain a double

1st Grade Math » Unit: Problem Solving Addition
1st Grade Math » Unit: Problem Solving Addition
Carrie Clark
Gilbert, IA
Environment: Rural
 
Big Idea:

Students can recite doubles, this lesson puts the doubles+1 strategy into action!

 
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Resources (18)
 
Reflections (1)
explain a double
   

Seven Apples and Bananas

1st Grade Math » Unit: Building Numbers
1st Grade Math » Unit: Building Numbers
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Possibilities are abound as students try to determine one of the possible solutions to a story problem. Although they won't be eating Apples and Bananas, Raffi would still be proud.

 
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Resources (16)
 
Reflections (1)
lesson
   

Addition and Subtraction Carnival

1st Grade Math » Unit: Working with Numbers, Operations, and Story Problems
1st Grade Math » Unit: Working with Numbers, Operations, and Story Problems
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

So many things to do and so little time to do them in. Students will have the opportunity to challenge their addition and subtraction skills through a variety of activity choices.

 
Favorites (11)
 
Resources (19)
 
Reflections (1)
lesson image
   

Counting From A Number

1st Grade Math » Unit: Working with Numbers, Operations, and Story Problems
1st Grade Math » Unit: Working with Numbers, Operations, and Story Problems
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Students will continue working with games that ask them to use the counting on strategy. The lesson will end with a story problem that allows for the students to use the counting on strategy in a real world situation.

 
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Resources (19)
 
Reflections (1)
lesson image
   

Cookie Mysteries

1st Grade Math » Unit: Missing Parts: Unknowns in All Positions
1st Grade Math » Unit: Missing Parts: Unknowns in All Positions
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

I use the element of mystery to get kids excited to figure out how many cookies I have to start with!

 
Favorites (10)
 
Resources (17)
 
Reflections (1)
cookie sheet
   

Peas and Carrots...Carrots and Peas

1st Grade Math » Unit: Properties of Addition and Subtraction
1st Grade Math » Unit: Properties of Addition and Subtraction
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

Students "sweat" in this difficult task where they work to find all of the combinations for 7 and 8.

 
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Resources (15)
 
Reflections (1)
combinations image
   

Crayon Box Combinations

1st Grade Math » Unit: Properties of Addition and Subtraction
1st Grade Math » Unit: Properties of Addition and Subtraction
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

Students think deeply about how to make 9 using different combinations of red and blue crayons. This builds number sense and sets them up for later math fact fluency!

 
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Resources (15)
 
Reflections (1)
photo 21
   

Pumpkin Patch Math

1st Grade Math » Unit: Creating a Culture of Math
1st Grade Math » Unit: Creating a Culture of Math
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

We up the rigor in this strategy share! Students are expected to show 2 strategies for each problem in this fall inspired lesson.

 
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Resources (17)
 
Reflections (1)
1280px pumpkins 2
   

The Fishing Trip

1st Grade Math » Unit: Non Standard Measuring
1st Grade Math » Unit: Non Standard Measuring
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

What good fishing trip isn't without a good story or two? Today the students will solve comparison story problems involving different lengths of fish.

 
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Resources (28)
 
Reflections (1)
lesson image 2
   

Combine and Compare

1st Grade Math » Unit: Blending
1st Grade Math » Unit: Blending
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Blending is not just for ELA teachers! Today students will learn to "blend" (combine) two sets of dots and then compare the number to another using greater than by playing versions of previous learned activities.

 
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Resources (17)
 
Reflections (1)
photo 12
Common Core Math
 
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