Place Value

Ceopal Porter                  Dr. Ralph J. Bunche
                               164th Park Avenue
                               Markham, Il. 60426
                               708-333-6625 

Objectives:

The second grade students will:

1. Know the place value of the ones and the tens.
2. Know how many ones are in one ten.
3. Be able to write numbers using more than one place value.

Materials:

Cuisenaire rods, counting sticks, place value charts, and an overhead projector.

Strategies:

Tell the students to count the sticks as you hold up the sticks in front of the 
class.  Once the ten sticks have been counted, put a rubber band around them. 
Have the students count four more sticks.  Ask the students, "How many sticks 
am I holding?"  "How many tens are there?"  "How many ones?"  Do several more 
examples using the counting sticks. 

Present the cuisenaire rods to the students.  Place on the overhead projector 
one orange rod and ten white rods.  Tell the students that you want them to 
count the white rods as you place them on top of the orange rod.  Ask the 
students, "How many white rods does it take to make one orange rod?"  Then, say 
to the students, "We're going to call the orange rod the ten rod and the white 
rod the one rod."  Draw on the board a place value chart.  Then have a student 
come to the front of the class and place two orange rods and six white rods on 
the overhead projector.  Ask, "How many rods are placed on the projector?"  Once 
the answer is given, ask "How many ten's rods are there?"  Write that answer in 
the ten's place on the place value chart.  Next ask, "How many one's are there?"  
Write that answer in the one's place on the place value chart.  Do several more 
examples. 

Give each student a place value chart.  Tell the students to place the correct 
number of rods on their chart in the correct position as you give them a number.
Do several more examples using the cuisenaire rods.

For more practice give the students a worksheet concerned with the place value 
of the tens and the ones.