Learning Intention: Students will be able to add two digit numbers with a sum of 20 or less.

Materials: - Whiteboard - Whiteboard markers - Worksheet of 2 digit maths problems with answers

Lesson:

1. Opening:
   • Discuss the importance of mastering basic arithmetic, especially addition, in everyday life.
2. Instruction:
   • Introduce the concept of “adding two digit numbers with a sum of 20 or less”
   • Write an example problem, such as 9 + 11 =, on the whiteboard.
   • Ask students to solve the problem together.
   • Ask for student to explain their thought process as they solve the problem.
3. Guided Practice:
   • Provide students with a worksheet of 2 digit maths problems with answers.
   • Encourage students to work together to answer the problems, discussing their thought processes and strategies.
   • As a class, work through the answer key together.
4. Independent Practice:
   • Give students more 2 digit maths problems with answers for them to try independently.
5. Closing:
   • Recap the lesson by asking students to explain the concept of adding two digit numbers with a sum of 20 or less and how to solve these problems.
6. Assessment:
   • Have students complete a worksheet or test to assess their understanding of 2 digit maths problems with a sum of 20 or less.