Lesson Plan: Plants (Math - GR 1)

Subject: Math
Grade: 1
Lesson Objective: To use addition to solve word problems
Common Core Standard: CCSS.MATH.CONTENT.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.
Materials:
Starter:
Say:
- What is addition? (Allow the students to answer.)
Main:
Say:
- Addition is putting two numbers together to get a new number.
- For example, you might be planting your vegetable garden. You plant 4 cucumber plants and 6 bean plants. You use addition when you add 4 and 6 together to figure out how plants you have in your garden.
- Addition makes things easier. Instead of counting every plant in your garden, you just use addition. Knowing your facts helps you add really quickly.
- When figuring out how many plants you have in your garden, you just add 4 and 6 (Write this problem on the board- 4 + 6= 10).
- If you do not know your addition facts yet, you can add using your fingers, your number line or by drawing a picture. This is how you can use your fingers to help you add (demonstrate this using the 4 + 6 example).
- If you use your number line, you find the first number and then count up however many the second number is. For example, when adding 4 + 6, you find 4 on the number line and then count 6 more (demonstrate this).
- To draw a picture, you could draw circles to represent each number. You would then be able to count the circles to help you get the answer.
- Today, you are going to be solving word problems. To solve a word problem, you need to figure out what numbers you need to be adding. You do this by reading the addition word problem. The word problem will give you a scenario and there will be a question at the end that uses words such as all together or how many total. This means that you should add.
- You should write the addition problem down and draw a picture to help you solve the problem. When you are done, we will go over all of the answers. Does anyone have any questions?
Feedback:
Say:
- Who would like to share your answers? (Allow the students to share.)
Related lessons:
Lesson Plan: Plants - Science
Lesson Plan: Plants - Writing
Lesson Plan: Plants - Reading
Lesson Plan: Plants - Math
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Written by Kimberly Greacen, Education World® Contributing Writer
Kimberly is an educator with extensive experience in curriculum writing and developing instructional materials to align with Common Core State Standards and Bloom's Taxonomy.
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