Addition Within 201st Grade • Half Day Lesson Plan
Subject: Math, Operations and Algebraic Thinking
Type: Half Day Lesson Plan
Skills: Addition Within 20, Addition Strategies: Counting On, Making Ten, Making Easier Known Sums, Using Number Grids, Using Number Lines
File Type: PDF Document
Materials Needed: pencils, student whiteboards, eraser, dry erase marker (1 per student), large class number grid and number line, student number grids and number lines, deck of cards 1-10 (if not available, use the printable), dice, counters/marking manipulatives in 2 colors (ex. colored counting chips, small blocks, buttons), and a document camera or whiteboard
Printable Resources: Required Printable Resources: “Number Cards 1-10” (If class sets are not available, 2 copies of page 15 and 1 copy of page 16 per pair of students), “Solve and Cover” (1 copy per pair of students), “Roll and Race – Recording Sheet” (1 copy per student) Optional Printable Student Resources: “Exit Slips” (as an optional assessment component) (1 copy per student), “Number Grid & Number Line” (page 13) (1 copy per student), “Using My Addition Strategies” (page 14) (1 copy per student) Optional Printable Teacher Resources: “Addition Strategies” poster (1 copy for display),
Lesson Plan Description
This half day lesson plan is broken down into 2 separate segments (30-60 minutes each) addressing Operations and Algebraic Thinking: Addition within 20 (1.OA.6). These lessons include guided and independent practice of adding using counting on, making ten, making easier known sums, using number grids, and using number lines, and 3 games to reinforce these concepts.
- Segment 1: students will use different strategies such as counting on, making ten, making easier known sums, and using number grids and number lines to solve addition problems.
- Segment 2: students will play 3 games: “Addition War,” “Solve and Cover,” and “Roll and Race” to practice addition within 20.
These lessons can be taught over the span of a half day or you can use the lessons independently, broken up over several days.