Learning Intention: To develop the ability to add 4-digit numbers accurately and efficiently.

Success Criteria: 1. Students will be able to identify the place value of each digit in a 4-digit number. 2. Students will be able to add 4-digit numbers using the standard algorithm. 3. Students will be able to regroup or carry over when necessary during addition. 4. Students will be able to solve word problems involving addition of 4-digit numbers. 5. Students will be able to check their answers for accuracy using mental math or estimation strategies. 6. Students will be able to explain their thinking and justify their solutions when adding 4-digit numbers.