Activity Overview
Students will make predictions about the number of ways to make eleven with two or more addends. They will investigate patterns with these addends with the help of manipulatives and the calculator.
Before the Activity
See the attached PDF file for detailed instructions for this activity
Print pages 109 - 115 from the attached PDF file for your class
During the Activity
Distribute the page to the class.
Follow the activity procedures:
Activity A:
Use cubes or tiles to represent ways to make eleven (use more than two addends)
Activity B:
Using only two colors of tiles make a train that represents the number 5
View all combinations for five that can be made with two colors
Activity C:
Draw a large T on the board and label the sides of the table with the colors being used
Fill the table with all the combinations for five made with two colors
Use the one inch grid paper, two colors of markers to create a stair step pattern for the number 5
Activity D:
Write different number sentences for 5
Use the calculator to show a number sentence
Cut out each grid row from the T-table and glue on separate index cards
Write the number sentence on the card
Create a flip book
Use the calculator to explore all the two addend number sentences for 5
After the Activity
Review student results
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary