Return to Mathematics IndexNumber Addition Race

Janice Schaults Randolph Magnet School

7316 S. Hoyne

Chicago IL 60636

(773) 535-9015Objective:

This lesson is designed to help students with addition.

Students will solve word problems relevant to their experiences that involve

addition.

Students will participate in a game involving addition using

the phenomenological approach.Materials:

Dry wall tape (available at hardware stores)

Paper and pencil - scissors

Metric ruler - meter stick

Random number generator - dice or spinnersStrategy:

Divide students into groups of four. Each group will need the materials listed

above. Long tables or six to eight desks arranged into a rectangle make the

play area. Two students on one side of the table compete with two students on

the opposite side of the table. The first pair of students generate the first

number for an addition problem. Write the addend on paper. The second pair of

students will use a meter stick to measure the addend in centimeters on the

drywall tape. Write the measurement on the drywall tape. The first pair of

students will generate a second addend and write the number under the previous

addend. The second pair of students will measure this amount on the same strip

of drywall tape adjacent to the first measurement. Write the measurement on the

drywall tape. The first pair of students adds the addends to find the sum while

the second pair cuts the drywall tape and measures the total length of the

strip. THE MEASURE OF THE DRYWALL TAPE SHOULD EQUAL THE SUM OF THE ADDENDS. If

the drywall strip is measured correctly and the addition problem is correct,

then the first pair of students receives the strip (tape drywall strip to the

table starting at the edge of the table). Play continues with the second pair

of students generating the addends for the addition problem and the other

students measuring the addends on the drywall tape. The first pair of students

to line the length of the table with the drywall tape is the winner. This

activity can be adapted to practice fractions and decimals.

Performance Assessment:

Students verify the addition problem by measuring the addends on the drywall

tape and matching the total length of the drywall with the sum of the addition

problem. If the students made a mistake in addition the other side will keep

the drywall measurement and tape it to their side of the table. Students will

lose a turn if they incorrectly measure the drywall tape.Acknowledgement:

David Drymiller, a member of the SMILE staff has been very helpful with his

expertise and sharing his own personal materials.