Learning Goal
Use addition and subtraction within 20 to solve word problems
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
**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.
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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.
What you'll learn
- Solve "add to" and "take from" word problems with result unknown (e.g., "8 birds are on a fence. 5 more land. How many now?")
- Solve "put together" and "take apart" word problems with total unknown or addend unknown (e.g., "There are 14 dogs: 6 are big and the rest are small. How many are small?")
- Represent a word problem situation using objects, drawings, or an equation with a symbol (such as ? or ☐) for the unknown
- Identify where the unknown is in a word problem - result, change, or start - and set up the matching equation
- Use addition and subtraction strategies to solve problems with totals up to 20
Slides
Step through the lesson, or watch it as a narrated video