Curriculum Guides

Grade Level: First

Content Area: Operations/ Computations

Skills: Adding a 1-digit number to a 2-digit number without regrouping.

Prerequisites:

Adding two one digit numbers without regrouping.

Instructional Practices:

Materials Needed:

colored index cards

Technology:

Activity:

Place your students in small groups and begin your lesson with one small group at a table or on the floor. Explain that we will be adding two digit numbers and explain what that means. Write a problem on a wipe off board and demonstrate how to work it. Students will use the index card to cover the tens side and will then add the numbers on the ones side. It is important to stress always adding the ones side first because it will help them when they learn to regroup. Students may cover the ones side next and add the tens side. Guide students through a few problems using their index cards to cover the ones side and then the tens side.

Theme Ideas: